{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03693_014.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boston, Massachusetts | 1898 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"121"},{"label":"placed","value":"111"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 75, georef 30, snap:0 3, georef-street 2, streets-candidate 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.27326,-71.12458 +/-258m); p109 (tier 2, 42.28048,-71.17426 +/-260m); p110 (tier 2, 42.28008,-71.17143 +/-253m); p117 (tier 1, 42.25793,-71.15945 +/-254m); p118 (tier 1, 42.25682,-71.15803 +/-252m); p27 (tier 1, 42.31953,-71.12439 +/-249m); p40__2 (tier 1, 42.27081,-71.17145 +/-150m); p50 (tier 1, 42.29571,-71.12007 +/-236m); p52__2 (tier 1, 42.28842,-71.10856 +/-100m); p95__2 (tier 1, 42.29433,-71.14835 +/-169m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p1","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0001/info.json","type":"ImageService2","height":8388,"width":5892},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5047.8,7977.7 4663.4,7133.7 4393.5,6867.9 3668.4,6842.3 2576.5,7302.0 1592.5,6957.5 -0.0,6796.0 -0.0,-0.0 5892.0,0.0 5892.0,1503.7 5892.0,7929.7 5047.8,7977.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11138,42.3198698]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1080395,42.3186569]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1103746,42.3151402]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1137151,42.3163531]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0010/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"269.1,6246.7 -0.0,6246.7 -0.0,-0.0 5023.6,0.0 4879.6,2226.1 4613.5,2182.7 4390.1,7642.0 402.9,7562.7 269.1,6246.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11548018489508,42.31883544679054]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1121694013236,42.31780875631852]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11413756780769,42.3142894119834]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11744835137917,42.31531610245542]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p100","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0100/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0100/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2447.9,4598.3 343.3,4614.3 340.9,3806.1 1720.0,3771.6 1671.8,1150.1 3065.7,1117.6 3060.9,0.0 4413.6,0.0 4448.0,2151.0 5864.0,2183.8 5864.0,8266.0 5805.0,8388.0 2483.5,8388.0 2464.7,8312.5 2264.2,8314.1 2262.8,8388.0 1162.1,8388.0 1146.1,8323.4 -0.0,8332.9 -0.0,6065.0 382.4,6069.7 353.3,5307.0 2111.1,5258.9 2490.1,5058.9 2447.9,4598.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0100/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15484491530843,42.27963927574845]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15022079182046,42.28358071106314]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14265409770807,42.27865230402011]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14727822119605,42.27471086870543]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0101/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p101","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0101/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0101/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3780.9,3894.2 3771.1,4697.1 5864.0,4698.5 5864.0,5189.0 5519.1,5351.9 4839.3,5364.9 4838.7,4878.7 -0.0,4918.8 -0.0,0.0 5099.6,0.0 5152.7,3871.3 3780.9,3894.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0101/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3080.0,6164.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.149605,42.2758357]}},{"type":"Feature","properties":{"resourceCoords":[5148.0,1564.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.152213,42.279917]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0102/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p102","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0102/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0102/info.json","type":"ImageService2","height":8388,"width":5844},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4789.1,1260.0 4407.8,1268.2 4401.2,1670.0 5260.8,2724.2 5526.4,3518.9 5013.8,3514.7 5016.9,6283.6 4988.5,6366.5 4974.3,7956.3 5216.3,7960.2 5209.7,8388.0 -0.0,8388.0 -0.0,0.0 5844.0,0.0 5844.0,487.9 4772.7,499.4 4789.1,1260.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0102/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15394095541035,42.27378282917737]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.149406043308,42.2777801590288]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1417064866138,42.27292984822733]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14624139871614,42.2689325183759]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p103","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0103/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0103/info.json","type":"ImageService2","height":8388,"width":5840},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 735.8,-0.0 785.5,514.5 1568.8,637.3 1703.1,-0.0 2802.3,-0.0 3519.6,105.8 3527.5,-0.0 5192.0,-0.0 5191.1,1049.2 4789.0,6120.0 4051.8,6064.9 4019.2,6464.6 4187.4,6475.1 4196.0,7593.0 5452.6,8083.5 5840.0,8327.7 5840.0,8388.0 -0.0,8388.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0103/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16750929463966,42.29285941415802]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16252253014088,42.28916954078868]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1696364314285,42.28383356763518]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.17462319592728,42.287523441004524]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p104","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0104/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0104/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 5868.0,0.0 5868.0,3783.5 5347.6,3801.8 5312.5,5059.8 5067.1,5076.8 4994.9,7075.0 3212.7,7045.7 3313.2,6691.0 1608.0,6801.7 1659.7,7597.8 440.3,7595.0 424.5,5425.8 -0.0,5395.4 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0104/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16932229139229,42.28547642478792]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16400287459858,42.288943136054336]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15735153057312,42.2832780186601]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16267094736683,42.279811307393686]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0105/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p105","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0105/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0105/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 -0.0,197.3 29.7,0.0 1783.0,0.0 1754.4,675.2 5273.6,840.9 5187.4,2402.4 5864.0,2413.2 5864.0,4567.7 4896.5,4561.3 4881.1,7016.8 5864.0,6792.1 5864.0,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0105/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3136.0,4136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.160848,42.27992]}},{"type":"Feature","properties":{"resourceCoords":[4912.0,4136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1600743,42.2804708]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0106/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p106","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0106/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0106/info.json","type":"ImageService2","height":8388,"width":5840},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"604.0,7806.6 653.2,5361.5 1616.9,5388.0 1646.6,3242.2 972.9,3217.4 1080.3,1664.1 -0.0,1588.7 0.0,0.0 3402.9,0.0 3157.4,691.9 5044.3,831.6 4870.7,3442.1 5840.0,3575.2 5840.0,5170.5 4637.8,5789.6 4690.0,6159.8 5840.0,6236.3 5840.0,8388.0 1575.3,8388.0 1586.2,7603.4 604.0,7806.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0106/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16247111588581,42.28183266585764]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15996898128074,42.28368990157157]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15638871600385,42.28101225262279]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15889085060891,42.27915501690886]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0107/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p107","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0107/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0107/info.json","type":"ImageService2","height":8388,"width":5844},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3600.0,2027.9 3661.9,2022.9 3960.1,1398.8 4288.9,275.7 5433.9,173.3 5431.8,0.0 5844.0,0.0 5844.0,760.5 5036.2,769.6 5060.7,6324.2 5497.5,6350.6 5519.0,8235.8 4617.9,8285.8 4616.6,8388.0 236.1,8388.0 -0.0,8139.3 -0.0,4395.4 91.1,4333.9 109.9,4219.0 -0.0,3929.4 -0.0,0.0 3448.6,0.0 3600.0,2027.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0107/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1743948,42.283128]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1691931,42.2864412]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1627653,42.2809175]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.167967,42.2776043]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0011/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2596.3,8369.9 1243.3,5525.3 -0.0,5551.5 0.0,0.0 1938.2,302.7 2962.8,681.6 4120.4,221.8 5045.6,363.3 5540.5,1434.9 5880.0,1422.2 5880.0,7049.3 5396.1,7213.5 5417.7,8159.2 2596.3,8369.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11339288343537,42.317113547512875]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11019046668272,42.316003879760515]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11231619353468,42.312601948396214]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11551861028732,42.313711616148574]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0111/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p111","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0111/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0111/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5852.0,6186.3 5780.1,6300.6 5852.0,7403.2 5407.6,7515.1 5414.2,8388.0 4695.9,8388.0 2309.0,7034.1 2233.5,7200.3 2560.3,8388.0 617.7,8388.0 902.2,7302.6 609.8,7887.6 490.4,8388.0 0.0,8388.0 0.0,6911.0 431.7,6052.3 0.0,5841.4 -0.0,-0.0 5852.0,0.0 5852.0,6186.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0111/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2312.0,7028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1685283,42.2747829]}},{"type":"Feature","properties":{"resourceCoords":[4004.0,7940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1669632,42.2759236]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0112/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p112","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0112/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0112/info.json","type":"ImageService2","height":8388,"width":5844},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 -0.0,4546.1 554.2,332.3 679.0,343.7 1677.7,928.3 3436.3,2429.0 5844.0,5092.0 5844.0,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0112/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16743345358383,42.27629434363952]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16236877249791,42.27262338238882]}},{"type":"Feature","properties":{"resourceCoords":[5844.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16943951016125,42.26720632285332]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.17450419124717,42.27087728410402]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0113/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p113","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0113/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0113/info.json","type":"ImageService2","height":8388,"width":5832},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1787.7,2056.2 1869.0,2196.6 2029.4,1887.1 2646.5,1368.1 2705.1,1217.8 3796.0,1556.3 4413.8,1367.8 4197.2,566.2 5085.4,0.0 5472.0,0.0 5832.0,113.6 5832.0,8388.0 2693.5,8388.0 3190.2,8030.6 0.0,3607.3 0.0,2524.8 1787.7,2056.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0113/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4196.0,568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.166955,42.277165]}},{"type":"Feature","properties":{"resourceCoords":[1176.0,4316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1650349,42.2731257]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0114/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p114","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0114/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0114/info.json","type":"ImageService2","height":8388,"width":5804},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5804.0,0.0 5804.0,8388.0 3943.7,8388.0 4016.4,7969.5 3442.9,7258.6 2853.4,7181.1 2844.9,7579.5 2514.9,7573.3 1637.1,8388.0 -0.0,8388.0 0.0,0.0 5804.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0114/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16696266277552,42.272543120862245]}},{"type":"Feature","properties":{"resourceCoords":[5804.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15996365392593,42.2729084613643]}},{"type":"Feature","properties":{"resourceCoords":[5804.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15925514411533,42.265370558586284]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16625415296492,42.26500521808423]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0115/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p115","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0115/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0115/info.json","type":"ImageService2","height":8388,"width":5824},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2801.9,0.0 3042.5,231.8 3267.0,0.0 3381.6,0.0 3673.1,301.4 3653.1,1294.5 3301.0,1588.0 4681.1,2868.7 5824.0,1637.2 5824.0,8388.0 2423.7,8388.0 2597.3,7422.1 2544.1,7428.4 2631.8,7230.0 -0.0,6757.1 -0.0,0.0 2801.9,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0115/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16557833995493,42.264075378077116]}},{"type":"Feature","properties":{"resourceCoords":[5824.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1608224738936,42.267858962101776]}},{"type":"Feature","properties":{"resourceCoords":[5824.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15351076718991,42.26275404907775]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15826663325124,42.25897046505309]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0116/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p116","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0116/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0116/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5852.0,389.0 5852.0,8388.0 -0.0,8388.0 -0.0,-0.0 5852.0,0.0 5750.0,420.0 5852.0,389.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0116/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15994000626044,42.259823294615465]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15712694158073,42.261385022541816]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15412357403645,42.25837974338341]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15693663871616,42.25681801545706]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0012/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0012/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"971.0,6560.5 1019.3,953.6 2690.8,908.9 2582.1,0.0 5209.7,0.0 5745.2,1766.5 5710.6,2816.7 5261.0,4167.4 4344.1,5611.8 3869.8,7881.1 488.1,7662.9 493.4,6668.3 971.0,6560.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11087355237744,42.31600562359899]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10764497711064,42.31491736642679]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10972965222564,42.311487586433046]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11295822749244,42.312575843605245]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0013/info.json","type":"ImageService2","height":8388,"width":5904},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"981.8,7998.6 1244.6,5696.8 2023.8,4175.0 2346.8,2789.4 2315.2,2258.8 4421.8,1869.6 4191.5,4783.1 4674.5,8023.6 981.8,7998.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10883598459739,42.31540714150902]}},{"type":"Feature","properties":{"resourceCoords":[5904.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10574134908475,42.31409559197738]}},{"type":"Feature","properties":{"resourceCoords":[5904.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10824352861293,42.31082143210844]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11133816412557,42.31213298164008]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0014/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2042.9,2890.7 984.1,2986.5 840.6,1256.3 5132.7,1934.7 5245.0,4115.2 3764.1,4266.6 3447.2,6095.1 4867.8,6164.3 4888.2,7399.7 855.3,6805.8 1027.6,4597.6 2051.7,4501.4 2042.9,2890.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10843717148546,42.313094699939775]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10693610163705,42.315510473806384]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10229581392053,42.31391150058227]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10379688376895,42.31149572671566]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0015/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0015/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4737.7,2837.3 4560.1,7533.8 1590.8,7359.4 1607.5,6071.9 1241.6,6036.5 1041.9,2960.6 1315.3,1203.9 3061.5,1068.7 2970.7,0.0 4595.6,0.0 4737.7,2837.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10794819935163,42.31394001358553]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10472448641437,42.31284499231023]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1068277724278,42.30941091944576]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11005148536506,42.31050594072106]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0016/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0016/info.json","type":"ImageService2","height":8388,"width":5872},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5708.2,6771.9 1071.3,7300.3 58.9,2070.8 2278.5,1800.1 5700.7,1056.7 5708.2,6771.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10492012442624,42.313408193933206]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10206083685739,42.31184715172022]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10505513336209,42.30880540933326]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10791442093094,42.310366451546244]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0017/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1321.3,194.8 2072.7,1001.9 3915.4,687.4 4158.4,2267.6 4512.7,2213.2 4506.8,1900.4 5876.0,1532.3 5876.0,7922.6 4974.5,7943.2 4697.7,7503.0 4743.8,7613.5 5276.4,8388.0 925.3,8388.0 945.0,59.7 1321.3,194.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.102138651015,42.312598231228655]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09929861210885,42.31105142652732]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10226354229398,42.30803218003265]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10510358120013,42.30957898473398]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0018/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0018/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4649.1,938.4 4214.5,113.7 4616.0,39.7 5405.9,260.0 5372.0,0.0 5868.0,0.0 5868.0,8388.0 1245.7,8388.0 1393.5,1924.1 4649.1,938.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09986586144427,42.3115467738917]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09701666745423,42.31006817254402]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09985466090173,42.307034991297776]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10270385489177,42.308513592645454]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0019/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0019/info.json","type":"ImageService2","height":8388,"width":5872},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4350.2,7867.9 5872.0,8246.8 5872.0,8388.0 -0.0,8388.0 0.0,-0.0 1671.8,-0.0 2145.5,1180.8 2597.9,1060.4 4778.0,4890.8 4550.1,4872.0 4350.2,7867.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11757079174217,42.31659387393922]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11487453740541,42.314956925627165]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11801459106525,42.312088764779254]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.120710845402,42.31372571309131]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p2","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"17"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0002/info.json","type":"ImageService2","height":8388,"width":5896},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3083.6,7710.3 1969.6,7733.1 2235.0,0.0 5896.0,0.0 5896.0,636.7 5617.5,660.5 5577.6,6787.0 5896.0,6818.4 5896.0,7874.8 5577.8,6814.8 2976.3,6805.8 3083.6,7710.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2240.0,4772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1093568,42.3164991]}},{"type":"Feature","properties":{"resourceCoords":[4648.0,3820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1077803,42.3164474]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0020/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4656.3,1211.2 5134.2,4061.2 4684.8,7559.3 -0.0,4355.0 -0.0,37.0 4656.3,1211.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11677115364317,42.31552349688261]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11326723642242,42.315084811752506]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1141081542795,42.31135998184654]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11761207150026,42.31179866697665]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p21","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0021/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"436.1,8353.5 1345.1,3418.7 -0.0,2965.8 -0.0,-0.0 1463.7,0.0 1556.1,1544.3 1696.3,1535.0 1982.3,0.0 4969.7,0.0 4823.2,6421.1 4929.8,6681.7 3154.6,7727.7 2368.2,8005.3 436.1,8353.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2476.0,7972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1148227,42.3104567]}},{"type":"Feature","properties":{"resourceCoords":[1588.0,2088.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1177619,42.3119359]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0022/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0022/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"499.2,7807.3 784.4,6730.7 805.7,5705.5 665.7,4203.9 -0.0,3989.9 -0.0,422.3 97.0,645.9 3453.3,893.7 5880.0,1402.8 5617.6,2387.7 5062.0,2215.8 4387.1,2451.1 4182.5,2775.5 4488.1,3132.5 4843.2,4583.0 4351.8,7941.2 2640.7,7413.0 740.1,7878.1 499.2,7807.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11404348300381,42.31351668848791]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11067982916188,42.31275731129028]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11213444390458,42.309183899596455]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11549809774651,42.30994327679409]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0023/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1160.2,4526.6 446.2,3897.0 -0.0,3758.9 -0.0,3377.6 442.6,2821.9 1000.9,2671.8 734.3,1692.4 4940.1,238.1 5463.1,1421.5 5864.0,1265.8 5864.0,7928.6 5469.5,6878.4 2881.7,8012.3 1767.4,5444.0 1160.2,4526.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1104235340377,42.31289614893062]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1081150471919,42.31091103208866]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1119279454512,42.30845186984984]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11423643229699,42.3104369866918]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p24","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"18"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0024/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1237.0,7340.2 1189.4,6893.9 2858.5,422.0 5405.4,136.4 5864.0,3409.8 5864.0,6598.4 4190.0,6784.4 2939.6,7380.9 2500.2,6630.8 1237.0,7340.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1236.0,7340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1118473,42.3084109]}},{"type":"Feature","properties":{"resourceCoords":[2432.0,472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.108919,42.31063]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p25","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0025/info.json","type":"ImageService2","height":8388,"width":5884},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2037.8,8120.2 1808.4,6620.9 1580.6,6756.4 1554.3,4974.4 885.2,585.5 5499.1,151.5 5386.0,8250.0 2037.8,8120.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3452.0,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1056435,42.3098969]}},{"type":"Feature","properties":{"resourceCoords":[5384.0,8248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.107464,42.306487]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0026/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0026/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5880.0,8388.0 4781.4,8388.0 4796.0,7811.2 852.9,7290.9 844.8,1910.2 5111.2,1892.3 5880.0,3000.4 5880.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10437898475563,42.31026255758914]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10148955026847,42.30867500501201]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10453040537233,42.30560522372605]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10741983985949,42.307192776303175]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p28","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0028/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0028/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1592.1,8388.0 -0.0,8388.0 -0.0,0.0 5876.0,0.0 5876.0,8388.0 5788.0,8388.0 5671.8,7758.7 5700.0,6857.1 5509.6,6860.7 4599.1,7264.5 3644.0,7857.2 1765.1,8002.2 1592.1,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1748.0,8004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.127432,42.311857]}},{"type":"Feature","properties":{"resourceCoords":[2512.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1258459,42.3186635]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0029/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0029/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2438.8,1696.2 2578.7,1822.9 1950.0,2449.5 1609.3,2979.1 1672.8,3038.9 4535.5,0.0 5860.0,0.0 5860.0,1605.5 4610.9,1865.2 5044.0,3948.1 4325.7,4048.1 4538.7,5502.9 1895.4,5005.9 1987.1,4865.0 1379.3,3391.2 754.3,4815.9 475.8,5110.9 -0.0,5307.9 -0.0,1547.6 419.5,1143.8 1509.0,1367.5 2438.8,1696.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12642563522857,42.31242114606504]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12095796734971,42.3157262253486]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11460537707401,42.30989775254246]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12007304495287,42.306592673258905]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0003/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2011.7,0.0 3416.4,0.0 3350.8,969.3 4816.2,271.3 4598.9,2706.1 4603.0,5454.8 3847.2,8388.0 1728.6,8388.0 1791.6,7879.1 1416.3,6058.6 2011.7,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10761144525671,42.31786678566185]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10422693809706,42.316990162362]}},{"type":"Feature","properties":{"resourceCoords":[5876.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10590740138497,42.313392398236495]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10929190854462,42.31426902153634]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p30","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"14"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0030/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0030/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"832.5,8388.0 611.2,8267.7 336.7,8388.0 -0.0,7935.5 -0.0,1185.1 3791.3,642.9 5880.0,1982.2 5880.0,3217.2 5054.5,2918.6 4390.3,5772.6 2707.8,7909.7 3492.5,8344.4 2561.8,8083.7 2315.1,8388.0 832.5,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2452.0,864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.116395,42.310563]}},{"type":"Feature","properties":{"resourceCoords":[5056.0,2920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1167342,42.3090992]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0031/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0031/info.json","type":"ImageService2","height":8388,"width":5836},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5836.0,8388.0 3775.1,8246.7 2478.9,8388.0 54.9,8388.0 1182.1,6036.9 1221.2,3090.7 2090.9,3203.4 1827.2,1991.3 3094.5,2458.9 3105.6,1596.5 4890.3,2023.5 4838.9,7163.1 5836.0,7294.9 5836.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11515161030026,42.31001015048478]}},{"type":"Feature","properties":{"resourceCoords":[5836.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11417514677855,42.30749724683678]}},{"type":"Feature","properties":{"resourceCoords":[5836.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11902475683196,42.306452018155454]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12000122035367,42.30896492180345]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0032/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0032/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5720.9,7361.1 3904.3,7577.6 4191.6,8388.0 1649.6,8388.0 1635.7,8388.0 374.1,8388.0 1219.7,7652.2 186.9,7108.9 323.7,4796.9 1030.7,3700.0 2181.7,797.0 3604.0,1442.5 3628.6,-0.0 4488.3,-0.0 4609.6,1406.3 5720.9,7361.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11082254328718,42.309980787553755]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11107625454697,42.30735254034113]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11612773549717,42.307623003954745]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11587402423739,42.31025125116737]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0033/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0033/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1589.5,8388.0 1344.4,8148.0 1351.4,8388.0 -0.0,8388.0 -0.0,944.3 1665.6,31.0 5773.0,0.0 5888.0,174.1 5888.0,8388.0 1589.5,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12687940245509,42.312586705782074]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12076772237793,42.31011311965322]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12549933374255,42.30362886855786]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13161101381971,42.306102454686716]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0034/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0034/info.json","type":"ImageService2","height":8388,"width":5872},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 470.4,0.0 1273.6,485.5 1392.7,0.0 3945.3,0.0 3825.9,479.9 2668.5,1725.6 1578.4,2172.5 20.5,2308.3 22.0,2469.5 135.2,2564.6 268.1,2661.3 4456.8,2758.5 4495.2,1435.9 4843.8,2340.6 5872.0,4154.3 5872.0,8388.0 -0.0,8388.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12877999499817,42.30763493276571]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.122483592002,42.305259478702624]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1270394325674,42.29856039528346]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13333583556357,42.300935849346544]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0035/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0035/info.json","type":"ImageService2","height":8388,"width":5872},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1341.4,1139.7 1212.6,1366.5 1127.9,1295.5 1112.7,0.0 1416.4,0.0 2102.4,904.5 2033.7,1287.3 2521.9,500.0 2662.6,0.0 2730.7,0.0 3030.6,475.1 3309.5,0.0 3478.6,0.0 3474.6,123.5 3796.0,758.0 3992.7,814.2 4085.8,1241.4 4101.9,839.9 4163.2,854.3 4456.1,2007.7 4647.9,2490.3 4861.8,3605.0 5311.8,3490.7 5423.9,4141.8 5423.9,4141.8 5519.5,4697.3 5519.5,4697.3 5663.1,5531.5 5872.0,5587.7 5872.0,7103.2 4738.2,6058.9 4055.0,8388.0 -0.0,8388.0 11.2,6344.1 218.0,4783.0 524.4,3912.1 1978.2,1389.7 1439.5,1099.2 1341.4,1139.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1251279372031,42.30959539920732]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11793283009418,42.309772428918414]}},{"type":"Feature","properties":{"resourceCoords":[5872.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11759329433126,42.30211747379543]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12478840144018,42.30194044408433]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0036/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0036/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5236.9,2634.9 5674.5,5970.1 5283.9,7838.1 2665.7,7146.0 2541.5,7509.6 2311.9,7480.5 -0.0,6411.5 -0.0,2196.4 146.8,2184.9 200.2,1181.3 5324.4,831.4 5236.9,2634.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1187453151256,42.307534850214154]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11529329123452,42.30806538728576]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11427225305658,42.30438023231273]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11772427694765,42.30384969524113]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0037/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0037/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4900.9,1200.1 4904.4,6605.7 5035.2,6609.1 2769.3,7193.5 985.3,7324.8 797.7,1312.0 4900.9,1200.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0037/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11111343120695,42.30836706829915]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11082310569331,42.30572058444602]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11590601648192,42.30541129088087]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11619634199555,42.308057774733996]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0038/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0038/info.json","type":"ImageService2","height":8388,"width":5892},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"396.3,7041.8 517.7,5192.6 1179.3,3664.5 -0.0,2980.6 -0.0,2714.7 1400.5,3287.1 3215.9,468.8 5494.0,1897.5 5177.1,3442.5 4489.1,5127.5 4464.0,5374.4 4582.2,7190.3 544.3,7957.7 396.3,7041.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10702610582292,42.30792002277001]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10730849255064,42.305263855755804]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1123857415327,42.30556326318065]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11210335480499,42.30821943019486]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0039/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0039/info.json","type":"ImageService2","height":8388,"width":5856},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5856.0,7711.0 571.9,7521.5 578.3,476.2 4591.5,1011.7 4575.8,1598.8 5694.1,1600.5 5696.6,0.0 5856.0,0.0 5856.0,7711.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10671323565123,42.30768847555779]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1038833812353,42.30613841406289]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10686446682418,42.303119482388865]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1096943212401,42.30466954388376]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0004/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1623.2,7298.7 1424.7,4431.2 1479.6,1875.6 -0.0,2707.3 -0.0,0.0 5152.0,0.0 5034.7,357.0 4715.4,1368.0 4657.6,1577.6 3986.1,4774.5 3904.9,7252.3 1623.2,7298.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10525739742704,42.31803295982538]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10209780916134,42.31703176592809]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1040131648707,42.31367994748488]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1071727531364,42.31468114138217]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0040__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p40 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5892.0"},{"label":"split_canvas_h","value":"8388.0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0040__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0040/info.json","type":"ImageService2","height":8388,"width":5892},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5892.0,5294.8 3319.6,5296.4 3272.8,1444.0 1007.5,1453.4 1708.7,2572.3 1530.7,2657.6 1505.3,4198.8 1585.0,4200.5 1527.0,8064.1 1509.1,8063.1 1503.1,8388.0 5892.0,8388.0 5892.0,5294.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0040__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1284.0,6296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.105634,42.304772]}},{"type":"Feature","properties":{"resourceCoords":[780.0,996.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.10245,42.308878]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p41","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"4"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0041/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0041/info.json","type":"ImageService2","height":8388,"width":5872},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"24.6,2044.5 5717.7,1407.7 5853.9,2894.9 3667.6,6397.9 2983.6,6995.6 444.0,7068.0 24.6,2044.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[444.0,4392.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1146574,42.3048446]}},{"type":"Feature","properties":{"resourceCoords":[444.0,7068.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.114703,42.303636]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0042/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0042/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1512.8,7175.1 1301.1,7059.9 -0.0,7870.5 -0.0,6274.7 1354.4,5292.0 1365.4,4631.1 952.3,4018.7 1603.9,3465.0 663.1,2272.8 2021.3,1376.1 3886.3,1081.3 5359.9,556.4 5303.1,8388.0 1501.3,8388.0 1727.2,7571.7 1512.8,7175.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0042/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11090316912635,42.30714392378696]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10798058523402,42.30557851119479]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11097885250591,42.30247332492913]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11390143639824,42.3040387375213]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p43","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0043/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0043/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3623.9,8388.0 3976.1,7571.4 3927.6,6652.1 880.6,7208.5 767.9,4640.6 2891.8,1423.8 5185.4,2882.2 4666.4,3848.4 5813.1,4455.3 5549.0,5729.2 4255.4,8388.0 3623.9,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2224.0,6960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1145886,42.3030318]}},{"type":"Feature","properties":{"resourceCoords":[3808.0,6660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1144485,42.3023192]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0044/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0044/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"755.6,8388.0 694.2,582.2 5888.0,750.0 5888.0,8388.0 755.6,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10923803180516,42.30522783072255]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1063700358832,42.30364517814265]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.109397136583,42.3006020622513]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11226513250496,42.3021847148312]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0045/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0045/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 -0.0,0.0 4516.8,0.0 4502.8,193.1 5888.0,335.1 5888.0,7577.8 1268.6,6494.7 1422.7,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0045/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1127746679505,42.30188190321928]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10975657597456,42.30055527421662]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11229385932235,42.29735273667079]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1153119512983,42.29867936567345]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p46","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0046/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0046/info.json","type":"ImageService2","height":8388,"width":5896},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2320.3,7905.7 1890.4,7835.0 1373.6,683.0 -0.0,632.3 0.0,0.0 5896.0,0.0 5896.0,8388.0 2261.4,8388.0 2320.3,7905.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11030857612573,42.301026577370614]}},{"type":"Feature","properties":{"resourceCoords":[5896.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10737068756004,42.299534453288935]}},{"type":"Feature","properties":{"resourceCoords":[5896.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11024217007144,42.29644461339039]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11318005863714,42.29793673747207]}},{"type":"Feature","properties":{"resourceCoords":[2320.0,7904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1118588,42.2975272]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p47","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0047/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0047/info.json","type":"ImageService2","height":8388,"width":5928},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 -0.0,0.0 1455.6,0.0 1582.4,2238.0 2957.7,2127.3 2661.5,309.1 4789.3,636.7 5154.6,7038.2 4973.5,8388.0 4759.8,8388.0 4302.4,7924.7 3679.5,7818.0 3900.0,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0047/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11531537673079,42.29993229000616]}},{"type":"Feature","properties":{"resourceCoords":[5928.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11234067564916,42.29837235500596]}},{"type":"Feature","properties":{"resourceCoords":[5928.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11530394293722,42.295237052420184]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11827864401884,42.296796987420386]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0048/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0048/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3697.6,1166.9 5888.0,886.7 5888.0,8388.0 3686.0,8388.0 3687.2,7645.6 1876.0,6998.0 779.2,579.6 3698.4,682.9 3697.6,1166.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0048/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11325679517563,42.29886196287843]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11059512369917,42.29710304420132]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11395902751102,42.294278568239356]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11662069898748,42.29603748691647]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0049/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0049/info.json","type":"ImageService2","height":8388,"width":5856},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1001.4,926.2 2199.0,863.0 2174.0,666.7 3541.6,393.1 3816.7,1541.3 4390.5,2906.5 3931.3,3029.5 3481.5,2940.5 3548.6,3257.2 4933.3,3607.9 5700.4,3616.5 5054.7,5955.7 4340.2,5685.8 3319.8,8388.0 -0.0,8388.0 -0.0,1734.8 1448.6,2450.6 1001.4,926.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11857028973967,42.30567214161458]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11193859100784,42.304398605014896]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11438770939884,42.2973233654891]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12101940813066,42.29859690208878]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0005/info.json","type":"ImageService2","height":8388,"width":5876},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4720.3,6733.1 3501.7,6965.9 3686.1,8388.0 1793.3,8388.0 1005.8,4867.0 976.9,1683.5 1117.9,0.0 5876.0,0.0 5876.0,7823.7 4759.5,7963.9 4720.3,6733.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4680.0,5472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.102674,42.314174]}},{"type":"Feature","properties":{"resourceCoords":[2060.0,3452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1032797,42.315592]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0051/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0051/info.json","type":"ImageService2","height":8388,"width":5892},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3081.1,7315.3 3050.5,7404.0 2730.6,7437.8 2206.4,7297.6 366.6,7260.2 361.7,6580.7 -0.0,6577.6 -0.0,1261.5 1602.2,1178.9 1476.0,896.7 1585.8,877.9 1793.5,934.4 2108.5,1227.4 2244.2,461.5 3081.8,841.1 3058.8,1210.2 4153.6,1276.8 4231.4,0.0 5892.0,0.0 5892.0,2229.0 5293.4,2005.4 5420.0,2833.2 4445.0,2539.6 4110.0,3095.8 3856.9,6424.2 4419.3,7342.5 3081.1,7315.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0051/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11696895748669,42.29750249605824]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1113437010935,42.294217409738785]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11762174571626,42.288251783001236]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12324700210945,42.291536869320694]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0052__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p52 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5880.0"},{"label":"split_canvas_h","value":"8388.0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0052__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0052/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1075.1,4831.4 791.3,6006.8 2480.6,5865.8 2358.4,7218.8 2228.5,7531.4 2117.1,7670.0 2041.0,7673.8 967.2,7092.8 605.9,6774.5 216.2,8388.0 5880.0,8388.0 5880.0,1736.4 5517.6,1764.0 5705.1,1131.2 4862.2,1326.0 5095.0,300.8 4498.8,0.0 1055.5,0.0 -0.0,760.8 -0.0,864.3 257.9,676.1 573.9,1120.3 981.8,1456.9 1057.1,1810.4 1767.4,1965.2 1604.0,2641.5 865.9,2147.1 593.6,2506.5 93.8,2833.4 1028.5,3683.7 754.2,4011.9 663.5,4626.7 784.7,4844.5 1075.1,4831.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0052__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1028.0,3684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.114897,42.288603]}},{"type":"Feature","properties":{"resourceCoords":[2116.0,7672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1105494,42.2869664]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0053/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0053/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"714.7,4917.6 129.7,4006.0 30.6,3657.7 -0.0,-0.0 2670.7,-0.0 3129.6,131.8 3518.1,89.4 3546.9,-0.0 4887.4,-0.0 5255.5,558.6 4414.6,499.0 4152.5,3858.3 4382.9,3846.7 4264.5,7583.5 938.3,7534.1 890.9,4964.0 714.7,4917.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0053/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12282922514704,42.29260720216889]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11734055128503,42.289265695984774]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12376955919436,42.28340466599587]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12925823305638,42.28674617217998]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p54","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"10"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0054/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0054/info.json","type":"ImageService2","height":8388,"width":5848},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5688.7,4949.6 5848.0,5164.3 5848.0,7599.3 5236.0,8161.9 4882.5,7633.4 4384.6,7275.1 2574.3,6785.8 2495.0,5329.7 -0.0,6023.2 0.0,-0.0 1911.6,-0.0 2335.7,550.1 3146.3,63.2 5314.6,-0.0 5372.1,1062.9 4328.6,1382.4 3405.7,1967.5 5248.7,4367.7 5408.6,3505.1 5848.0,3725.9 5848.0,4790.6 5688.7,4949.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1064.0,4368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.120414,42.288005]}},{"type":"Feature","properties":{"resourceCoords":[5236.0,8160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1201658,42.2855064]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0055/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0055/info.json","type":"ImageService2","height":8388,"width":5856},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"954.3,3308.1 1429.2,3207.9 1518.3,3106.7 1614.2,3168.8 2141.6,3057.6 2203.4,2817.1 1759.0,2828.2 2748.6,1665.6 3138.1,2061.0 3409.0,2543.8 3953.7,2397.7 3663.7,1338.2 3334.9,988.1 3561.6,720.8 3539.3,619.1 3862.4,237.3 3886.7,337.4 4092.4,96.8 4692.6,535.4 4685.3,544.9 4976.2,688.0 5131.8,1013.0 5856.0,1001.6 5856.0,1693.0 5025.4,1382.2 4845.7,1791.7 4438.1,2221.4 5542.4,2832.1 5353.4,3211.9 5409.4,3827.3 5577.8,4010.6 5856.0,3932.0 5856.0,5192.4 5108.6,5434.2 5856.0,5918.6 5856.0,8045.8 3477.5,8388.0 -0.0,8388.0 20.6,4733.5 1014.2,3540.6 954.3,3308.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0055/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12219479341205,42.287906473601]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11648081608209,42.29081769140822]}},{"type":"Feature","properties":{"resourceCoords":[5856.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11088364590591,42.284720084714706]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11659762323588,42.28180886690748]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p56","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0056/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0056/info.json","type":"ImageService2","height":8388,"width":5844},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2962.0,8388.0 1570.4,8388.0 56.6,3246.1 -0.0,2422.7 -0.0,696.7 2635.3,0.0 5844.0,0.0 5844.0,7899.0 2962.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1800.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1105494,42.2869664]}},{"type":"Feature","properties":{"resourceCoords":[352.0,7664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.116427,42.283336]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p57","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0057/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0057/info.json","type":"ImageService2","height":8388,"width":5840},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6327.3 0.0,-0.0 3423.3,-0.0 3423.3,-0.0 5323.8,-0.0 5408.1,1634.0 5112.6,1619.7 5079.1,2429.7 5394.7,2811.8 5522.6,3077.0 5540.6,3485.2 5203.5,4779.5 5303.6,5814.4 4816.4,5747.1 4876.2,7325.3 5512.5,7374.7 5547.4,7604.6 5290.3,8388.0 278.2,8388.0 287.7,6337.0 -0.0,6327.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3164.0,7116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.135921,42.290633]}},{"type":"Feature","properties":{"resourceCoords":[280.0,7920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.139161,42.291791]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0058/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0058/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.4,6470.9 1641.4,6213.3 1363.3,4521.5 -0.0,1495.2 -0.0,1335.9 401.5,1285.0 541.1,0.0 3737.5,0.0 3571.0,981.7 4638.0,870.2 4240.6,5993.0 5453.6,6074.3 5237.3,7758.3 1841.9,7632.5 50.4,6470.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0058/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13474636575482,42.289304141406326]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13255205627335,42.29129537835057]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12872086983236,42.288952251813534]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13091517931383,42.28696101486929]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0059/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0059/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5611.3,7310.3 536.2,7320.2 443.5,6304.1 1008.5,3233.7 764.4,2495.3 -0.0,1621.6 -0.0,0.0 591.9,-0.0 723.3,1406.9 5573.9,1366.8 5611.3,7310.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0059/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1298022516591,42.29315461911407]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12728081775768,42.29134501022082]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13076264540376,42.2886526494809]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13328407930518,42.29046225837415]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0006/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0006/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1147.3,4966.7 2269.3,4844.9 2375.6,0.0 3700.2,0.0 3624.3,1471.9 4851.0,1536.4 4762.5,3073.7 5868.0,2985.4 5868.0,4440.4 4724.7,4568.9 4604.5,7243.0 1172.9,7831.6 1147.3,4966.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10240509166248,42.31538987879309]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09944129877397,42.313916542645124]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1022693770412,42.31076157503679]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1052331699297,42.31223491118476]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p60","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0060/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0060/info.json","type":"ImageService2","height":8388,"width":5828},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4703.7,688.0 4726.2,4669.4 5378.8,5739.4 5558.9,5789.1 5559.8,6502.0 2781.0,6508.9 2783.0,7306.9 2236.3,7229.7 2448.3,4836.6 -0.0,4628.4 -0.0,0.0 5541.4,0.0 5552.6,697.8 4703.7,688.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0060/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12666433125317,42.29566220895738]}},{"type":"Feature","properties":{"resourceCoords":[5828.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12128445053843,42.292463236766274]}},{"type":"Feature","properties":{"resourceCoords":[5828.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12746486336837,42.28669499595238]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13284474408312,42.28989396814349]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p61","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"8"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0061/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0061/info.json","type":"ImageService2","height":8388,"width":5856},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5477.2,8388.0 5476.0,7327.1 4466.2,7891.3 4304.8,7894.1 4006.3,8388.0 1889.4,8388.0 1669.6,8097.8 1661.3,8388.0 -0.0,8388.0 0.0,-0.0 4770.2,-0.0 4770.3,339.4 5057.6,349.1 5049.0,5149.9 5856.0,5147.4 5856.0,8216.1 5691.3,8388.0 5477.2,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5476.0,7328.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1430638,42.2879355]}},{"type":"Feature","properties":{"resourceCoords":[5048.0,1928.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.139161,42.291791]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p62","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"10"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0062/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0062/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4215.6,8388.0 3428.3,8388.0 1503.4,8388.0 371.4,4079.9 361.3,1360.7 4451.1,1346.2 5054.4,1879.1 5864.0,6928.8 5864.0,8201.4 5739.2,8388.0 4215.6,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3236.0,876.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.136522,42.290088]}},{"type":"Feature","properties":{"resourceCoords":[364.0,2416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.140382,42.290766]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0063/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0063/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2493.7,8056.5 0.0,6016.7 -0.0,0.0 951.5,0.0 3312.2,1078.2 4595.9,4250.7 4806.2,5919.0 3237.5,6112.9 4343.9,6905.1 2618.5,6868.4 2677.4,7850.9 2493.7,8056.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0063/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13588492131166,42.28801709676105]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13374681092664,42.290112876498284]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12972281424494,42.287834386815156]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13186092462996,42.285738607077924]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0064/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0064/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1201.0,7482.7 931.4,7289.5 -0.0,7437.8 -0.0,5641.3 416.5,4963.6 581.5,1663.8 -0.0,1578.0 -0.0,-0.0 5502.8,0.0 5471.8,7089.5 1747.0,7018.3 1201.0,7482.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12889297127222,42.28965971845821]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12614825172984,42.28803584844942]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12926400965638,42.28511289324192]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13200872919876,42.286736763250715]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p65","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0065/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0065/info.json","type":"ImageService2","height":8388,"width":5892},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"648.9,8388.0 -0.0,8388.0 -0.0,4290.8 444.7,3695.6 1154.3,1960.5 -0.0,1674.7 -0.0,837.6 1715.6,909.4 1288.0,1763.3 1313.2,2711.6 5892.0,2590.1 5892.0,3869.3 4530.4,5025.6 5144.8,5739.9 5360.3,7999.7 5892.0,8009.6 5892.0,8388.0 1201.1,8388.0 1230.7,7861.2 648.9,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0065/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13547789868085,42.289339318181106]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13270104008139,42.28767858778974]}},{"type":"Feature","properties":{"resourceCoords":[5892.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13587452145441,42.284733431728476]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13865138005387,42.28639416211984]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p66","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0066/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0066/info.json","type":"ImageService2","height":8388,"width":5840},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3451.1,3179.7 5840.0,130.9 5840.0,6142.6 5274.2,6130.5 5198.3,8388.0 3742.3,8388.0 3785.4,6932.4 4845.0,6965.0 4835.4,6333.9 1657.9,6304.0 1636.0,6112.2 1002.8,5403.0 3451.1,3179.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0066/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13363335628948,42.28843621250779]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13094659756317,42.28676759995495]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1341634915398,42.2838925951401]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13685025026611,42.28556120769294]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p67","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0067/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0067/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5303.7,7510.3 1018.0,7353.8 1110.6,1279.5 1442.8,932.0 5265.6,972.5 5303.7,7510.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0067/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13103212566787,42.28747044209087]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12833071989262,42.28584402636177]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13145551429875,42.28296317034701]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.134156920074,42.28458958607611]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0068/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0068/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5351.5,1646.2 2860.6,8357.8 -0.0,8291.5 -0.0,1884.8 5351.5,1646.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13252569815083,42.28371496521702]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13019594047316,42.28570950679608]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12636920431072,42.28322830573263]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12869896198839,42.28123376415357]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0069/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0069/info.json","type":"ImageService2","height":8388,"width":5884},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4943.3,7183.0 5591.2,8388.0 58.8,8388.0 860.2,7657.7 867.6,1879.5 2303.9,769.9 2353.0,2394.6 4908.5,3157.2 4943.3,7183.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13041304720394,42.2857727268007]}},{"type":"Feature","properties":{"resourceCoords":[5884.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1269902657291,42.28637533335512]}},{"type":"Feature","properties":{"resourceCoords":[5884.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12583723129927,42.282740016552864]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12926001277411,42.28213740999845]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0007/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2402.2,7796.7 1279.3,6874.9 -0.0,3409.8 -0.0,0.0 449.5,0.0 5888.0,1011.2 5888.0,4215.3 4215.7,7436.5 2402.2,7796.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0998371987417,42.31515982173222]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09697682311581,42.31357344133312]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10001153696916,42.31053889412924]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10287191259505,42.31212527452834]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p70","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0070/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0070/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1644.1,2361.9 2575.6,1025.0 5868.0,940.9 5868.0,7735.6 884.7,7641.3 3244.9,4503.0 1644.1,2361.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0070/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1304238246856,42.285093165646664]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1281698293223,42.28708704126228]}},{"type":"Feature","properties":{"resourceCoords":[5868.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12434428750817,42.28468657967644]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12659828287146,42.28269270406082]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p71","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0071/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0071/info.json","type":"ImageService2","height":8388,"width":5888},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,498.2 5419.8,930.3 5224.1,3653.0 5542.2,6606.0 5888.0,6536.0 5888.0,7867.9 5093.4,8388.0 2210.2,8388.0 2214.8,7831.7 0.0,7760.4 0.0,498.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0071/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12630187137937,42.28380396800412]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12419910571786,42.28592739341668]}},{"type":"Feature","properties":{"resourceCoords":[5888.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12013891163626,42.283695557131864]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12224167729777,42.28157213171931]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0072/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0072/info.json","type":"ImageService2","height":8388,"width":5848},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5848.0,5497.2 5848.0,6797.4 5638.2,6765.6 5655.8,7120.7 2665.6,6992.3 -0.0,6390.5 1308.2,870.9 853.0,768.9 1072.0,0.0 2226.2,0.0 2226.2,0.0 3673.3,0.0 3350.0,1424.9 4624.9,2105.8 5347.4,2860.5 5543.8,3464.6 5563.9,5279.3 5848.0,5497.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12212788890572,42.28801963468955]}},{"type":"Feature","properties":{"resourceCoords":[5848.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11904019916697,42.28680614191852]}},{"type":"Feature","properties":{"resourceCoords":[5848.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12137645802301,42.28350661251386]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12446414776176,42.28472010528489]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p73","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0073/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0073/info.json","type":"ImageService2","height":8388,"width":5840},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5975.4 -0.0,1894.1 1495.5,1849.7 1519.5,2125.8 2947.5,2006.7 3320.4,1715.6 3274.0,1159.0 3899.3,1010.3 3971.6,848.7 4842.0,631.5 5109.2,947.0 5840.0,979.3 5840.0,1214.3 4605.7,2107.0 3695.2,5561.8 4452.5,5756.9 4543.3,7086.3 1678.7,6933.8 1313.4,5065.9 -0.0,5975.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0073/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12459008391369,42.28260235023664]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11994605324757,42.28655627121929]}},{"type":"Feature","properties":{"resourceCoords":[5840.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1123238387359,42.281586538329364]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11696786940202,42.27763261734671]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0074/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0074/info.json","type":"ImageService2","height":8388,"width":5848},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5848.0,8388.0 1803.9,8388.0 1369.6,8025.8 -0.0,8368.4 -0.0,446.9 952.3,362.8 843.9,-0.0 5848.0,-0.0 5848.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0074/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11386515088351,42.28199462042229]}},{"type":"Feature","properties":{"resourceCoords":[5848.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1113547415769,42.28017327040372]}},{"type":"Feature","properties":{"resourceCoords":[5848.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11486093212505,42.277490369993956]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11737134143166,42.27931172001252]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p75","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0075/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0075/info.json","type":"ImageService2","height":8388,"width":5832},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7490.7 -0.0,4779.7 425.2,4357.0 -0.0,3883.1 -0.0,0.0 3728.4,0.0 3948.9,4465.8 2948.5,5944.1 4380.1,5959.8 4425.6,7436.2 -0.0,7490.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[432.0,6708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.136392,42.282963]}},{"type":"Feature","properties":{"resourceCoords":[432.0,7488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.136041,42.282731]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p76","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0076/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0076/info.json","type":"ImageService2","height":8388,"width":5836},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5566.9,8135.7 -0.0,8147.4 -0.0,6999.9 359.3,7002.2 384.4,262.0 5222.8,246.3 5566.9,8135.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0076/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13362734780252,42.28502778519481]}},{"type":"Feature","properties":{"resourceCoords":[5836.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13101375022332,42.28332194957428]}},{"type":"Feature","properties":{"resourceCoords":[5836.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13430448331962,42.2805231647128]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13691808089882,42.28222900033333]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0077/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0077/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"519.4,2181.2 5860.0,2340.6 5860.0,7208.5 4945.8,7270.0 4917.1,8388.0 591.5,8388.0 519.4,2181.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0077/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1310772508006,42.28405941266032]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1283557649076,42.282398458311214]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13154674321794,42.279496029724065]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13426822911094,42.28115698407317]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p78","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"16"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0078/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0078/info.json","type":"ImageService2","height":8388,"width":5836},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2983.1,8388.0 2785.0,8388.0 1498.8,8388.0 1010.0,7835.6 919.9,5404.7 1366.6,1909.4 4984.7,1616.0 5836.0,5744.8 5836.0,6191.7 5836.0,6209.1 3695.1,8388.0 2983.1,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2788.0,4228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1266171,42.2812799]}},{"type":"Feature","properties":{"resourceCoords":[1488.0,7764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1306084,42.2796702]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0079/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0079/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,590.0 1051.3,176.1 1207.4,500.0 1240.5,1130.2 3278.2,489.3 4631.5,4404.3 3657.3,5678.0 3700.2,5751.9 4410.0,4847.4 5150.8,5444.7 4945.3,6670.4 4616.4,7556.7 5852.0,7588.0 5852.0,8125.4 5689.4,8388.0 1693.2,8388.0 2473.9,7341.1 2466.9,7208.1 1591.8,8388.0 -0.0,8388.0 -0.0,590.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0079/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1265601,42.2804288]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1204847,42.2829765]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1155491,42.27653339999999]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1216245,42.2739857]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0008/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"354.0,8388.0 -0.0,8388.0 -0.0,3890.0 2165.4,3867.5 2679.2,708.4 0.0,-0.0 5880.0,0.0 5880.0,6845.8 5143.3,6511.1 4745.4,6532.1 5061.9,7385.0 393.7,8082.2 354.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09858657589827,42.314049032672536]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09542220488972,42.31282548459515]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09776596980178,42.30946380297986]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10093034081034,42.31068735105725]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p80","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0080/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0080/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2774.5,3612.3 2104.0,1851.8 0.0,2680.1 0.0,2511.0 4844.7,560.0 5852.0,36.3 5852.0,3849.8 4909.2,3612.7 4907.5,5016.4 4431.6,5432.4 3688.5,8388.0 1602.7,8388.0 1833.3,7991.1 0.0,6811.1 0.0,6485.2 1211.7,5493.7 2774.5,3612.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0080/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12073110890145,42.27822545413582]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11896117477777,42.28049831951855]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11458887293128,42.278608027551115]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11635880705497,42.27633516216839]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p81","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0081/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0081/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3594.9,7371.5 1319.4,7182.9 1369.8,5339.5 1243.9,5325.2 1370.2,3023.4 687.8,3028.5 625.0,3121.0 624.0,6987.4 371.0,6950.0 -0.0,6664.4 -0.0,2425.7 1535.9,2548.6 1532.3,2322.4 -0.0,2220.1 0.0,0.0 5880.0,0.0 5880.0,8136.4 5779.7,8388.0 4759.6,8388.0 4427.2,8000.1 4154.4,7417.9 3594.9,7371.5 3594.9,7371.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1372.0,6896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1556578,42.292098]}},{"type":"Feature","properties":{"resourceCoords":[624.0,6988.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.156293,42.291643]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p82","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0082/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0082/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2462.0 470.3,0.0 5852.0,0.0 5852.0,3815.9 5396.5,8076.4 5852.0,8199.9 5852.0,8388.0 -0.0,8388.0 -0.0,5475.5 170.2,5509.1 292.2,4129.2 -0.0,3560.0 -0.0,2462.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0082/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1559857237977,42.29164645870786]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14999609538762,42.294468739962724]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14456586351957,42.288073011664366]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15055549192965,42.2852507304095]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p83","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"15"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0083/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0083/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"684.5,3211.5 750.7,3209.2 728.1,3075.9 680.5,3126.1 615.8,1654.1 4888.5,2759.8 4937.3,2576.1 5026.5,2624.4 5033.9,2785.4 5626.1,3777.2 4343.3,3817.5 4749.7,4181.8 5852.0,4150.3 5852.0,6978.0 4772.6,5879.5 4541.3,6128.0 4549.7,6803.5 3814.9,6841.6 3761.6,5423.5 3784.5,5324.5 4011.3,5101.3 3462.6,4542.3 3531.5,7282.6 2853.1,7311.6 2862.6,7605.8 4788.6,7535.4 4846.5,8178.4 -0.0,8346.6 -0.0,4513.4 695.8,3494.0 684.5,3211.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2876.0,8260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1413737,42.2834192]}},{"type":"Feature","properties":{"resourceCoords":[5028.0,2624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1445718,42.2882453]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p84","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0084/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0084/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 -0.0,-0.0 450.3,-0.0 3151.5,761.6 3052.3,-0.0 4638.7,-0.0 4648.7,315.4 4119.5,304.1 4109.8,1031.8 4638.1,3240.7 4811.3,4606.6 4643.8,7308.8 2350.6,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0084/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3596.0,2972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.137116,42.283477]}},{"type":"Feature","properties":{"resourceCoords":[4748.0,7308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1394546,42.2798776]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0085/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0085/info.json","type":"ImageService2","height":8388,"width":5864},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1623.9,8388.0 1625.5,7849.0 -0.0,7874.4 -0.0,4059.0 281.2,4054.2 290.0,2451.5 -0.0,2167.1 -0.0,861.3 5465.0,847.7 5435.7,-0.0 5864.0,-0.0 5864.0,6501.0 5613.8,6501.7 5625.9,8388.0 1623.9,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0085/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13644805757146,42.282574122928025]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13381269878126,42.28085270490238]}},{"type":"Feature","properties":{"resourceCoords":[5864.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13711750589522,42.2780439819692]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13975286468542,42.279765399994844]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p86","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0086/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0086/info.json","type":"ImageService2","height":8388,"width":5848},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 382.6,0.0 376.1,918.5 997.7,0.0 1581.5,0.0 4354.6,1042.1 5848.0,3909.7 5848.0,7864.4 2392.1,8388.0 713.1,8388.0 469.9,6330.7 -0.0,6320.4 -0.0,6027.7 433.9,6026.6 -0.0,2356.4 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0086/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3224.0,3352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1327305,42.2786118]}},{"type":"Feature","properties":{"resourceCoords":[692.0,920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1369781,42.2783315]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p87","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0087/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0087/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8388.0 0.0,-0.0 599.0,0.0 658.2,401.2 842.6,398.0 901.0,2046.3 2574.0,2009.4 2490.1,0.0 5488.1,49.0 5001.2,3277.1 5852.0,3188.1 5852.0,6601.0 5668.0,7174.5 5852.0,7234.7 5852.0,8388.0 -0.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0087/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13268868340468,42.27458935761143]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1278919749375,42.27849038660488]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1203881058739,42.27336713761269]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12518481434108,42.26946610861924]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p88","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0088/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0088/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"31.9,5527.7 -0.0,4680.0 -0.0,-0.0 1791.4,0.0 3728.0,0.0 5852.0,6072.2 5852.0,6185.6 5852.0,6203.7 5852.0,8388.0 1989.6,8388.0 1358.0,8388.0 1264.3,8388.0 31.9,5527.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0088/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.12962490791448,42.27770235212099]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1237090856142,42.28053988976856]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.11825073733142,42.27422153921378]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1241665596317,42.271384001566204]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p89","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0089/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0089/info.json","type":"ImageService2","height":8388,"width":5884},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4467.2,8351.4 1289.6,8388.0 276.3,8022.4 -0.0,7358.8 -0.0,1595.3 376.8,1559.0 892.0,-0.0 5426.9,-0.0 5516.0,449.5 4467.2,8351.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0089/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15932061386792,42.29601801860689]}},{"type":"Feature","properties":{"resourceCoords":[5884.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15560516588026,42.291576641389476]}},{"type":"Feature","properties":{"resourceCoords":[5884.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16410438408947,42.28763096573206]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16781983207713,42.292072342949474]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0009/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0009/info.json","type":"ImageService2","height":8388,"width":5880},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1018.2 -0.0,0.0 5880.0,0.0 5880.0,8388.0 3174.5,8388.0 1626.2,2782.9 1583.6,825.1 -0.0,1018.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1004849705756,42.3143332557471]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09811029733618,42.31626734162178]}},{"type":"Feature","properties":{"resourceCoords":[5880.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09440532782378,42.31374469066491]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0967800010632,42.31181060479023]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p90","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0090/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0090/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.8,13.6 2099.0,160.7 2671.8,472.4 2661.9,0.0 3359.0,0.0 3452.0,1266.2 3834.5,1575.9 4140.8,1672.4 4703.9,1568.1 4677.5,0.0 4800.2,0.0 4971.8,1498.8 4935.4,2954.9 5671.2,2909.7 5685.4,2144.6 5860.0,2132.5 5860.0,8200.7 5579.6,7943.3 5596.1,6341.1 5167.0,5172.3 4914.2,5267.1 4923.1,4279.9 4539.9,4264.2 4565.8,5366.4 4913.5,5377.5 4782.1,7317.8 4059.9,7204.5 2921.0,7456.4 2048.3,4435.2 2674.3,4268.0 1568.8,13.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0090/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3452.0,1268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1573849,42.2915796]}},{"type":"Feature","properties":{"resourceCoords":[1580.0,3824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.157748,42.288751]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p91","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0091/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0091/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4130.7,1518.9 4600.3,1790.0 3657.2,4556.5 5055.8,5033.4 5029.5,6053.5 5261.6,8388.0 988.2,8388.0 894.1,8015.7 947.2,6432.7 541.0,2026.8 870.0,2095.2 1025.8,1216.2 2145.2,1252.7 4130.7,1518.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0091/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15760591227547,42.28526062273566]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15317529911512,42.28935741414008]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14529350294225,42.2846260029371]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1497241161026,42.28052921153269]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p92","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0092/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0092/info.json","type":"ImageService2","height":8388,"width":5832},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5832.0,6419.0 5832.0,8388.0 5021.2,8388.0 2253.2,6891.6 1024.3,2445.6 5336.6,2350.6 5832.0,6419.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0092/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15200074790468,42.28192711966869]}},{"type":"Feature","properties":{"resourceCoords":[5832.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14750770997114,42.28589940037127]}},{"type":"Feature","properties":{"resourceCoords":[5832.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1398396728611,42.28108460734666]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14433271079464,42.27711232664408]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0093/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p93","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0093/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0093/info.json","type":"ImageService2","height":8388,"width":5868},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1456.2,6762.9 1382.1,6765.6 1380.4,6547.3 1456.4,6541.1 1458.6,3203.3 1299.8,3125.2 -0.0,3132.9 -0.0,1450.2 169.5,1449.1 199.4,340.7 3281.3,344.1 3279.9,614.3 4346.9,623.9 4346.1,1012.0 5847.1,1014.9 5836.6,1341.1 5297.8,1336.4 5281.8,2446.6 5868.0,2527.7 5868.0,8388.0 1394.4,8388.0 1456.2,6762.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0093/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,6688.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1460588,42.2766802]}},{"type":"Feature","properties":{"resourceCoords":[2572.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1394546,42.2798776]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0094/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p94","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0094/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0094/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"708.1,2738.4 724.6,1636.7 1259.7,1637.9 1264.6,1314.2 2154.0,1273.3 2138.7,652.2 706.2,620.3 707.9,-0.0 3160.1,-0.0 3134.0,627.5 5852.0,589.1 5852.0,8388.0 1286.8,8388.0 1259.1,2810.9 708.1,2738.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0094/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13712781364694,42.27916560791091]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13182802969929,42.27572209133632]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.13845191237138,42.27006157666275]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14375169631903,42.27350509323734]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0095__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p95 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3420.0"},{"label":"split_canvas_w","value":"5852.0"},{"label":"split_canvas_h","value":"4968.0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0095__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0095/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5677.0,3422.6 1402.0,3487.2 1121.4,7152.1 600.1,7134.3 469.0,8388.0 2262.0,8388.0 2229.4,7179.8 4900.7,7210.2 4859.2,7941.4 5852.0,7919.1 5852.0,3506.1 5677.0,3422.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0095__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2796.0,7169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1595682,42.2874405]}},{"type":"Feature","properties":{"resourceCoords":[3668.0,5922.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1599,42.288777]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0096/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p96","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0096/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0096/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2155.9,7616.3 834.2,7705.0 862.5,6642.7 -0.0,6551.9 -0.0,440.8 5294.8,682.0 5173.3,2130.5 5852.0,2118.1 5852.0,8388.0 1999.7,8388.0 2155.9,7616.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0096/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1602351029108,42.28720944816583]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1578208874564,42.28914487284044]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15409722004,42.286566833006965]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15651143549441,42.28463140833236]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0097/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p97","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0097/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0097/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,3501.2 4032.9,3074.6 4550.1,6757.8 513.4,6897.5 522.4,7474.1 -0.0,7484.4 -0.0,3501.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0097/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16203841812438,42.286265049029225]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15929287587895,42.28792770753606]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15609405687151,42.284995803644094]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15883959911694,42.283333145137256]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0098/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p98","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0098/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0098/info.json","type":"ImageService2","height":8388,"width":5852},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5852.0,8388.0 5435.7,8388.0 4791.7,7309.5 3204.9,7415.0 3136.6,8388.0 528.3,8388.0 574.6,6215.2 -0.0,6204.3 -0.0,1312.4 1058.3,1229.4 842.4,-0.0 3390.7,-0.0 3371.0,668.1 5852.0,-0.0 5852.0,8388.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0098/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15633030593125,42.28584290835256]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15399720219685,42.28384936979596]}},{"type":"Feature","properties":{"resourceCoords":[5852.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15783247447327,42.28135781354777]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16016557820767,42.283351352104376]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0099/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1898 | sanborn03693_014 p99","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T06:02:54Z","modified":"2026-09-21T06:02:54Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0099/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0099/info.json","type":"ImageService2","height":8388,"width":5860},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2007.3,6433.7 2339.3,4314.8 1270.3,4147.3 2073.8,585.0 1967.9,561.1 4660.1,411.9 4543.7,1754.6 5653.6,1846.0 5565.9,3232.5 4294.7,3186.8 3895.7,8280.8 2070.3,8388.0 2406.3,6501.9 2007.3,6433.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189807:03693_07_1898-0099/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15559396255796,42.285369805800826]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.14990771520617,42.28226861028665]}},{"type":"Feature","properties":{"resourceCoords":[5860.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.15586554383432,42.276204201067685]}},{"type":"Feature","properties":{"resourceCoords":[0.0,8388.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16155179118611,42.27930539658186]}}]}}]}