{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03693_009.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boston, Massachusetts | 1897 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"93"},{"label":"placed","value":"79"},{"label":"unplaced","value":"14"},{"label":"fit sources","value":"georef-snap 46, georef 36, snap:0 1, streets-candidate 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.35241,-71.06261 +/-265m); p50__1 (tier 2, 42.34032,-71.08999 +/-100m); p55__1 (tier 2, 42.34150,-71.09102 +/-360m); p55__2 (tier 2, 42.34150,-71.09102 +/-360m); p71 (tier 1, 42.33239,-71.06831 +/-254m); p73__1 (tier 2, 42.33356,-71.07112 +/-228m); p73__2 (tier 2, 42.33356,-71.07112 +/-228m); p74 (tier 1, 42.33196,-71.06879 +/-252m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0001","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.0,0.0 1467.0,2097.0 717.1,2097.0 735.4,1954.3 409.7,0.0 1467.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06787760276178,42.352780411158825]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06431388367679,42.35257145575872]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06471521548815,42.34878013865481]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06827893457314,42.348989094054915]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0010","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.5,547.0 210.2,518.5 220.8,206.2 123.0,202.5 125.0,57.4 -0.0,52.5 -0.0,-0.0 1066.1,0.0 1065.0,91.2 1467.0,105.0 1467.0,1880.7 1009.0,2097.0 66.1,2097.0 59.0,1231.7 -0.0,1106.8 109.7,1114.0 111.5,547.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07767804281607,42.3501022419311]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07438101021309,42.35109339311332]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07247740802522,42.347585683903716]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07577444062821,42.3465945327215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p11","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0011","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"784.3,1861.3 720.5,76.7 1261.0,73.4 1264.2,1620.0 784.3,1861.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[318.0,1579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0739714,42.3481563]}},{"type":"Feature","properties":{"resourceCoords":[1262.0,562.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0726609,42.3504312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p12","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"19"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0012","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"209.9,1810.3 531.2,1447.8 0.0,978.5 0.0,623.8 455.2,113.2 1467.0,375.2 1338.0,547.0 1467.0,785.3 1467.0,2097.0 216.8,2097.0 209.9,1810.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[531.0,1448.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0706189,42.346251]}},{"type":"Feature","properties":{"resourceCoords":[-176.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0727618,42.3456703]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p13","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0013","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"566.8,2081.1 438.2,1847.0 389.7,1716.6 244.5,1017.5 414.6,74.9 1191.6,-0.0 1373.5,-0.0 1387.5,1670.9 566.8,2081.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[934.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0731205,42.3464007]}},{"type":"Feature","properties":{"resourceCoords":[1366.0,1012.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.074872,42.3451154]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p14","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"30"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0014","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1020.6 -0.0,953.5 100.1,865.2 104.5,155.1 588.6,155.4 1016.2,1493.2 1017.6,1257.2 1207.8,1185.7 1248.3,1325.3 1467.0,1243.8 1467.0,2097.0 1448.3,2035.9 93.0,2020.6 99.2,1020.9 -0.0,1020.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1004.0,466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0705715,42.3445456]}},{"type":"Feature","properties":{"resourceCoords":[576.0,2024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0744752,42.3443013]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p15","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"22"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0015","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2093.8 -0.0,694.4 256.9,574.1 5.2,-0.0 1050.9,-0.0 1073.9,161.4 1289.8,53.5 1327.7,148.2 1352.5,2097.0 -0.0,2097.0 -0.0,2093.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[125.0,1725.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0720043,42.3441214]}},{"type":"Feature","properties":{"resourceCoords":[1108.0,1226.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0695766,42.3432793]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p16","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"9"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0016","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.0,1972.1 255.4,557.3 231.0,457.2 -0.0,534.3 -0.0,0.0 1361.8,9.1 1372.5,2080.7 73.0,1972.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[294.0,2004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.069534,42.342256]}},{"type":"Feature","properties":{"resourceCoords":[419.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0679357,42.3431593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0017","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1413.3 0.0,1381.7 220.5,1450.2 172.6,443.4 306.7,111.3 1105.7,357.4 1179.4,1650.3 1058.0,1665.6 1121.5,2097.0 131.7,2097.0 338.5,1543.3 0.0,1413.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06836454023494,42.34042177684977]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06677253449375,42.342773910462455]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06225564186015,42.34107994916563]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06384764760134,42.33872781555295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0018","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.9,1486.5 238.6,190.8 1350.7,720.9 1467.0,497.0 1467.0,2097.0 0.0,2097.0 0.0,1484.0 122.9,1486.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06701009193029,42.34160864395622]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06589994663436,42.34409681100276]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06112167996106,42.34291560510615]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06223182525699,42.34042743805961]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0019","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.9,355.9 932.6,245.7 924.1,0.0 1467.0,0.0 1467.0,178.0 1227.9,208.3 1278.6,1488.4 1165.2,1497.0 1195.0,2097.0 -0.0,2097.0 -0.0,1585.9 169.3,1573.0 124.9,355.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07172544258526,42.338667129915386]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0690033763072,42.34032860795839]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0658128912513,42.337432110043544]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06853495752937,42.33577063200054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0002","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1276.5,1741.3 1021.1,1762.5 203.1,1539.7 478.8,497.9 637.0,481.6 703.8,329.1 1005.5,460.4 1096.2,552.5 1467.0,27.5 1467.0,1584.8 1276.5,1741.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0667384315416,42.351043770909946]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06496458935048,42.3488227770722]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0692302352116,42.34693559340049]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07100407740272,42.349156587238234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p20","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0020","type":"ImageService3","width":1465,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.9,1472.4 121.9,481.4 915.3,478.7 1317.0,1408.4 1465.0,1453.2 1465.0,2097.0 -0.0,2097.0 -0.0,1476.2 111.9,1472.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[915.0,499.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0672223,42.3403403]}},{"type":"Feature","properties":{"resourceCoords":[453.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0664868,42.3384875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0021","type":"ImageService3","width":1462,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2056.8 -0.0,1534.2 210.0,0.0 256.6,0.0 222.9,250.4 1462.0,298.7 1462.0,2097.0 68.8,2097.0 -0.0,2056.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07590150379536,42.33497747641567]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0736023707969,42.33697184626306]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0697597507427,42.33451688601072]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07205888374116,42.33252251616333]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0022","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"156.8,245.2 813.8,181.8 814.9,0.0 1437.5,0.0 1428.3,1338.2 1259.2,1343.5 1236.5,1852.3 1467.0,1862.5 1467.0,2097.0 390.9,2033.1 156.8,245.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0022/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07373032975,42.33676155295922]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07110098098227,42.338518041834256]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06772813762453,42.33572012976807]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07035748639227,42.33396364089303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0023","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"647.1,180.6 1418.7,179.9 1418.2,338.1 1467.0,435.4 1467.0,1657.0 655.1,1739.3 653.2,1614.0 204.2,1618.5 181.2,258.8 213.9,258.8 213.7,319.9 647.7,322.0 647.1,180.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0748847612092,42.339875372467695]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07224435892819,42.34160413174477]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06892461045058,42.33879458620607]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0715650127316,42.337065826929]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0024","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"191.3,1600.5 202.4,642.5 158.1,541.8 157.3,370.6 1305.9,453.1 1290.4,2097.0 483.4,2097.0 485.1,1822.6 725.3,1803.3 733.5,1625.5 191.3,1600.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07292208731073,42.34161031786108]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07030519951215,42.34336375476683]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06693796548844,42.340579310191146]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06955485328702,42.3388258732854]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p25","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0025","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"517.4,134.8 517.2,0.0 573.5,0.0 572.1,133.2 808.5,131.7 808.1,201.7 1325.0,204.4 1323.0,1031.7 1271.6,1065.0 1247.7,1166.3 1255.5,1524.4 1316.0,1603.7 1322.7,1878.0 564.7,1951.5 565.9,1695.8 519.1,1702.2 525.3,1956.5 155.3,1998.7 156.6,135.2 517.4,134.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[935.0,513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.076726,42.3373247]}},{"type":"Feature","properties":{"resourceCoords":[545.0,1954.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0751233,42.3349621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p26","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"24"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0026","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.0,236.5 1467.0,1577.3 1293.8,1577.3 1290.8,1757.3 158.0,1864.5 153.0,1595.4 94.0,1517.2 88.4,1165.7 112.4,1066.4 163.0,1034.1 168.2,222.2 1467.0,236.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[742.0,391.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.075209,42.3386586]}},{"type":"Feature","properties":{"resourceCoords":[158.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0738555,42.3359798]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0027","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"476.1,247.5 1360.2,292.4 1326.4,1666.7 1467.0,1665.1 1467.0,2097.0 97.2,2097.0 206.8,946.0 476.1,247.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07250365691407,42.344155254945726]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07018111158528,42.34216984885028]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0739938591435,42.33969862474652]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07631640447228,42.34168403084196]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p28","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"19"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0028","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"164.0,236.3 1467.0,250.5 1467.0,2097.0 1398.0,2097.0 1396.5,1974.2 -0.0,1976.2 164.0,236.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,1206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0780724,42.3405218]}},{"type":"Feature","properties":{"resourceCoords":[1392.0,440.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0745554,42.3396564]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p29","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0029","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1336.9,1843.0 980.6,1841.4 982.5,1709.9 926.9,1709.3 926.6,1842.3 269.8,1835.3 152.9,483.0 1347.0,621.9 1336.9,1843.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08272748413064,42.33866711229549]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0801002657588,42.34044106208908]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07669380065838,42.33764549328182]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07932101903022,42.33587154348823]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0003","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"440.1,1179.4 186.2,1081.5 202.6,342.4 1212.9,363.1 1087.3,1652.6 1165.8,1921.1 1387.0,2097.0 1228.1,2097.0 440.1,1179.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0729645753216,42.349971141040584]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06967063390361,42.350918821223985]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0678505264985,42.34741439205053]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0711444679165,42.34646671186713]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p30","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0030","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"370.8,1013.6 469.0,997.3 458.4,945.0 360.0,961.5 204.8,227.2 513.8,180.9 1285.3,165.7 1284.0,560.0 1464.0,541.8 1464.0,1746.8 561.8,1935.8 370.8,1013.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1284.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.079595,42.339709]}},{"type":"Feature","properties":{"resourceCoords":[562.0,1936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.083315,42.3393189]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0031","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.4,922.8 -0.0,939.6 -0.0,881.8 58.2,869.8 -0.0,468.0 189.3,439.3 264.6,125.1 514.2,189.6 1376.5,194.9 1369.0,1975.3 291.2,2032.9 84.4,922.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07692054818689,42.34420031448187]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07483443250906,42.342076469476964]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07892140304143,42.339852266552555]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08100751871926,42.34197611155746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0032","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.7,1030.5 159.0,773.0 483.1,83.8 703.0,0.0 746.2,0.0 893.9,0.0 1227.8,415.8 1064.0,1761.4 274.6,1883.8 136.7,1030.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0032/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07796454518565,42.34479476308219]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07481255995849,42.345971615499025]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07254785300165,42.34261107703798]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07569983822881,42.341434224621146]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0033","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"839.5,1528.3 827.2,1585.7 398.0,1579.8 399.9,1086.8 151.8,1087.9 105.6,1036.7 160.8,686.8 110.5,267.3 966.3,270.9 1451.2,482.7 1120.7,1130.0 927.0,1118.3 899.6,1528.8 839.5,1528.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0033/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07770474081131,42.3462789318758]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07510271447084,42.34454891817339]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07843192970614,42.34177474181941]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08103395604661,42.34350475552182]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p34","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"8"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0034","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"283.6,898.3 336.1,673.3 695.1,41.1 838.0,41.8 1464.0,330.1 1464.0,733.8 1416.3,803.4 1416.9,1014.2 1291.2,1017.4 1252.9,1075.0 1314.5,2069.5 -0.0,2097.0 -0.0,1467.1 286.3,1442.2 283.6,898.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[696.0,1874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.079593,42.345909]}},{"type":"Feature","properties":{"resourceCoords":[220.0,-313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.076931,42.3492626]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0035","type":"ImageService3","width":1468,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1347.0,1621.1 1170.2,1714.8 1305.7,1979.7 87.6,1979.2 94.2,100.0 238.3,97.2 238.7,-0.0 548.9,-0.0 580.4,97.0 1143.1,79.7 1109.9,887.8 1182.0,1143.8 1403.2,1566.8 1329.8,1585.8 1347.0,1621.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07719444398145,42.350313879623926]}},{"type":"Feature","properties":{"resourceCoords":[1468.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07596535210776,42.34780794700319]}},{"type":"Feature","properties":{"resourceCoords":[1468.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08077493382457,42.34650120100545]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08200402569827,42.34900713362619]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p36","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0036","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.5,1975.8 91.5,2097.0 -0.0,2097.0 -0.0,224.3 92.5,224.2 92.7,115.2 1464.0,105.6 1464.0,1978.8 90.5,1975.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[868.0,1978.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0851094,42.3511474]}},{"type":"Feature","properties":{"resourceCoords":[1356.0,106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0804638,42.3514736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p37","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0037","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1303.7,-0.0 1301.0,1833.3 244.2,1833.9 259.5,-0.0 1303.7,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[829.0,1980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0841334,42.3491666]}},{"type":"Feature","properties":{"resourceCoords":[829.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0798941,42.3503114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p38","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0038","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1464.0,115.7 1464.0,1742.2 -0.0,1738.2 -0.0,233.8 89.3,233.8 88.4,112.2 1464.0,115.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[406.0,1880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0894765,42.3508438]}},{"type":"Feature","properties":{"resourceCoords":[406.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0869952,42.3515134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0039","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1339.8,152.5 1264.1,152.2 1258.7,828.6 1335.9,827.7 1334.8,974.5 1464.0,974.3 1464.0,1950.7 871.4,1969.0 872.4,1796.1 259.7,1793.9 270.8,-0.0 1340.8,-0.0 1339.8,152.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0039/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08450927417046,42.350687049269474]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08330711984694,42.34825996065027]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08797813333554,42.34697836966888]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08918028765906,42.34940545828809]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p4","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"7"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0004","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1467.0,0.0 1456.2,1910.1 168.5,1987.2 81.9,1529.5 -0.0,497.2 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[669.0,1734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0684781,42.3498743]}},{"type":"Feature","properties":{"resourceCoords":[684.0,1883.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0684108,42.3496133]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0040","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1464.0,1490.0 1338.6,1489.8 1324.5,1448.5 1324.5,1487.5 1347.8,1491.3 1464.0,1491.4 1464.0,2097.0 1293.0,2097.0 1329.5,2048.9 -0.0,1615.7 41.6,1406.6 -0.0,1391.0 -0.0,0.0 1464.0,0.0 1464.0,1490.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0040/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09282190221388,42.35076805260153]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08951884243345,42.35166445054177]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08779367764745,42.34814316367859]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09109673742789,42.347246765738355]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0041","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"233.1,1240.5 227.9,266.1 1207.8,269.1 1206.2,1144.8 1334.1,1292.2 1299.3,1338.0 1293.8,1728.1 1152.2,1801.4 233.1,1240.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0041/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08837729746992,42.34736691235605]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08513132121965,42.34826602628673]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08340101807003,42.34480541696202]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0866469943203,42.34390630303134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p42","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0042","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.0,1912.0 84.5,1752.2 -0.0,1753.5 -0.0,1016.6 82.9,1017.3 83.3,-0.0 1464.0,-0.0 1464.0,1568.8 1389.1,1692.8 1448.8,1804.8 1339.9,1767.0 1195.0,1904.1 84.0,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[783.0,1912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0850648,42.3468192]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0855842,42.3478794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0043","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"165.3,1922.4 170.2,1458.0 292.3,1429.2 170.4,1428.7 183.9,954.2 693.4,0.0 859.0,0.0 1136.5,472.6 889.3,469.1 875.2,1470.1 1340.6,1486.5 1339.1,1931.2 165.3,1922.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08780256820724,42.34425170308297]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08547326167725,42.346217537994576]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08169022438821,42.34373413172572]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0840195309182,42.34176829681411]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0044","type":"ImageService3","width":1462,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 245.5,0.0 415.2,279.8 528.4,289.9 576.8,289.6 730.6,0.0 845.9,0.0 919.9,115.3 1462.0,403.6 1462.0,1010.4 1250.8,1009.2 1250.0,1444.1 467.1,1445.3 462.3,1003.8 -0.0,994.0 0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0855413273661,42.3448903081188]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08316143622388,42.34684255165313]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07939939425128,42.344301757011586]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08177928539351,42.34234951347725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0045","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"477.0,251.9 1164.2,614.8 863.4,602.3 878.0,1834.0 730.4,1811.3 685.4,1865.5 682.8,2097.0 204.6,2097.0 212.7,1271.1 -0.0,1271.3 -0.0,1270.5 263.6,1271.1 266.4,842.3 474.7,844.3 477.0,251.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0045/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08367052321638,42.34600612496356]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08126424002678,42.34799571228822]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07743540250651,42.34543029797839]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07984168569611,42.34344071065373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0046","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.8,1876.0 73.2,-0.0 1404.4,-0.0 1391.2,1851.4 92.8,1876.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08113213379728,42.344830318084036]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07849137745657,42.343025697037206]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08196408200897,42.340210160156815]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08460483834968,42.342014781203645]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p47","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0047","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,603.4 -0.0,0.0 682.2,0.0 880.5,1044.8 968.1,1192.2 1241.6,1024.0 1422.4,1331.1 1464.0,1303.8 1464.0,1310.5 832.8,1692.6 833.7,1862.5 690.4,1779.3 169.3,2097.0 0.0,2097.0 0.0,1787.4 201.8,1663.3 129.8,1412.5 147.2,604.6 0.0,603.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0047/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09121986930072,42.34459444517274]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0905307849943,42.34716382793138]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0855861806474,42.34642917143065]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08627526495381,42.343859788672006]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0048","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1403.8 0.0,-0.0 1104.2,0.0 1105.9,176.8 1252.8,176.6 1243.5,982.6 1317.8,1232.0 1117.8,1357.8 1120.8,1666.6 1289.7,1664.9 918.0,1905.6 782.1,2097.0 196.4,2097.0 0.0,1989.2 0.0,1502.8 115.8,1301.7 303.4,1408.2 303.2,1330.5 144.1,1268.2 0.0,1403.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0048/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09076240302805,42.342506292506116]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09003697284672,42.3450770595785]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08508986746563,42.34430362800912]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08581529764696,42.34173286093674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0049","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1581.8 0.0,0.0 1464.0,0.0 1464.0,232.6 1255.3,266.9 1316.2,1654.2 1259.1,1637.0 476.2,1961.9 356.6,1628.4 58.2,1742.0 0.0,1581.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0921666803871,42.34580066110693]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09213329494224,42.348435540531746]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08706252158491,42.34839994803768]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08709590702976,42.34576506861286]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0005","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"710.9,-0.0 883.1,-0.0 864.5,125.2 1284.9,970.3 1280.4,1970.9 267.6,1970.5 283.6,879.4 -0.0,878.9 -0.0,702.8 285.7,780.9 325.1,284.9 679.5,315.9 710.9,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06879185106634,42.35293623217124]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06755933765649,42.35044536679753]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0723434545557,42.349134143192984]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07357596796555,42.35162500856669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0050__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p50 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5856.0"},{"label":"split_canvas_h","value":"8388.0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0050__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0050","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1229.8,2097.0 1325.0,2037.1 1328.5,1832.8 1440.5,1855.1 1464.0,-0.0 942.7,-0.0 -0.0,1005.5 0.0,1490.6 322.7,1490.6 460.5,1668.5 460.4,2097.0 1229.8,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0050__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[950.0,-55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0873309,42.3420274]}},{"type":"Feature","properties":{"resourceCoords":[1386.0,2782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.092478,42.338841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p51","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0051","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"188.8,2097.0 188.8,2097.0 -0.0,899.0 -0.0,730.7 529.8,19.9 795.6,0.0 820.0,0.0 825.2,0.0 1264.7,138.7 1132.6,966.0 1112.2,1090.2 883.4,1961.0 188.8,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[205.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0873309,42.3420274]}},{"type":"Feature","properties":{"resourceCoords":[1265.0,139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0840715,42.342197]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p52","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0052","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1367.5,1478.4 1300.7,2097.0 -0.0,2097.0 -0.0,1050.9 78.5,1051.0 77.7,925.0 -0.0,926.2 -0.0,310.8 68.3,306.6 68.2,86.5 1464.0,65.2 1464.0,117.7 1366.2,135.5 1367.5,1478.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[79.0,1051.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.085662,42.3408979]}},{"type":"Feature","properties":{"resourceCoords":[1366.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0817321,42.3405945]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0053","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 1464.0,0.0 1464.0,228.2 1293.0,224.3 1315.3,292.8 1464.0,389.8 1464.0,2097.0 0.0,2097.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0053/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09439130389026,42.3371146355566]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09263155729522,42.339459438967936]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0881197253843,42.33758306946026]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08987947197934,42.335238266048925]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0054","type":"ImageService3","width":1464,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 659.5,0.0 562.9,180.9 570.6,290.4 744.1,388.3 673.6,474.0 1464.0,940.7 1464.0,1587.1 1316.0,1554.4 1200.0,2097.0 473.4,2097.0 547.3,1906.7 216.6,1775.6 179.9,166.2 24.6,69.9 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0054/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09235453602054,42.338984780114394]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09057562019383,42.341232970442334]}},{"type":"Feature","properties":{"resourceCoords":[1464.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08624958473068,42.339336207280994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08802850055739,42.337088016953054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p56","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0056","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1262.3,1601.7 822.0,1689.3 747.3,2097.0 -0.0,2097.0 -0.0,1343.2 271.3,1337.3 321.6,781.8 318.1,265.6 1057.7,242.8 973.4,741.8 1149.5,755.7 1153.0,894.5 1189.8,941.7 1460.0,1050.5 1460.0,2097.0 1337.7,2097.0 1281.1,1729.5 1423.3,1707.5 1454.4,1436.2 1228.6,1361.2 1262.3,1601.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[272.0,1329.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0851873,42.3380049]}},{"type":"Feature","properties":{"resourceCoords":[899.0,1167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0838191,42.3374336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p57","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0057","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1134.4,0.0 1460.0,0.0 1432.4,1169.4 1460.0,1229.3 1028.2,1385.5 1371.5,2083.4 391.1,2097.0 340.8,1888.9 -0.0,2000.6 -0.0,625.8 1186.2,124.6 1134.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[200.0,1117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.08855,42.3348898]}},{"type":"Feature","properties":{"resourceCoords":[341.0,1889.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0870115,42.3338794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0058","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"570.6,397.8 1246.7,148.6 1448.0,1864.1 1400.7,2097.0 1127.2,2097.0 576.3,1516.5 551.0,1525.0 522.2,1459.4 570.6,397.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0058/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08912775597668,42.33771940677951]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08639881851859,42.339380293973946]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08319422599021,42.33646251726751]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0859231634483,42.33480163007308]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p59","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0059","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"242.1,1779.0 74.3,1803.7 39.5,1654.6 197.0,1602.6 -0.0,832.9 -0.0,714.5 136.0,677.9 149.6,800.5 1198.8,684.4 871.8,1853.2 299.7,2004.0 242.1,1779.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[498.0,580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0841015,42.3362327]}},{"type":"Feature","properties":{"resourceCoords":[872.0,1853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.081457,42.334916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p6","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0006","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.0,2030.8 107.3,2097.0 -0.0,2097.0 -0.0,0.0 1467.0,-0.0 1467.0,2028.0 107.0,2030.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[410.0,1095.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0747923,42.3548121]}},{"type":"Feature","properties":{"resourceCoords":[1345.0,2028.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0761697,42.3526346]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p60","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0060","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"640.0,450.4 694.6,411.8 827.4,409.5 841.1,231.8 841.6,226.4 1344.3,315.9 1372.8,1865.2 79.4,1848.5 640.0,450.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[890.0,1848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0801,42.335951]}},{"type":"Feature","properties":{"resourceCoords":[79.0,1848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.081457,42.334916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p61","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0061","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"254.8,2097.0 -0.0,1022.5 -0.0,747.0 -0.0,336.6 138.1,0.0 188.2,0.0 592.9,0.0 1460.0,735.8 1460.0,808.8 1460.0,901.6 1307.4,2097.0 254.8,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[261.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0870115,42.3338794]}},{"type":"Feature","properties":{"resourceCoords":[554.0,674.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0848581,42.3354415]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0062","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,625.8 660.0,499.7 570.6,71.0 925.9,0.0 1126.2,0.0 1227.3,548.7 1353.5,2097.0 1305.1,2097.0 1285.3,1794.1 1137.0,1857.5 1135.0,2097.0 -0.0,2097.0 -0.0,625.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0062/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08625978206685,42.333300124698496]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08396058072877,42.33522392208641]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08024895670519,42.332765460048385]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08254815804327,42.33084166266047]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0063","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.6,1038.4 168.2,1356.2 213.7,1334.0 94.0,0.0 261.7,0.0 287.1,228.4 867.7,163.6 1460.0,183.1 1460.0,922.5 1345.3,921.2 1329.1,1417.0 1257.5,1974.3 1460.0,1995.9 1460.0,2097.0 -0.0,2097.0 -0.0,1101.6 144.6,1038.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0063/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08316090434366,42.33395319063327]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08078845840609,42.33590618981718]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07702045613453,42.333369435664984]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0793929020721,42.33141643648107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0064","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"311.4,1966.8 325.5,1400.6 290.4,902.0 405.5,891.3 328.9,149.9 1021.1,124.8 1323.4,127.0 1322.1,1976.6 311.4,1966.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.08128828272194,42.33549072004804]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07867923616469,42.337237950438606]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07530816419387,42.33444826568606]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07791721075112,42.3327010352955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p65","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0065","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"393.2,2097.0 248.0,874.0 147.8,885.2 146.8,794.3 724.5,800.0 736.6,213.2 973.0,262.5 1161.7,248.5 1152.1,1855.1 1241.9,2097.0 393.2,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[724.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.076881,42.332318]}},{"type":"Feature","properties":{"resourceCoords":[724.0,800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.076119,42.332813]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p66","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0066","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"741.1,708.0 158.7,694.3 166.0,121.0 867.2,121.0 1228.1,77.9 1218.8,1365.8 1287.0,1870.7 1452.0,1887.4 1452.0,2097.0 615.9,2097.0 508.6,1958.6 267.1,2097.0 187.9,2097.0 241.7,1742.7 -0.0,1664.3 -0.0,1123.6 704.8,1129.8 691.5,942.5 741.1,708.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[867.0,121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0757481,42.3344434]}},{"type":"Feature","properties":{"resourceCoords":[166.0,121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0770373,42.333601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p67","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0067","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2097.0 -0.0,1551.8 320.7,704.3 837.9,890.7 998.4,687.0 1363.6,884.9 1394.8,1497.2 1188.0,1634.7 1370.2,2036.1 1100.0,2097.0 -0.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0067/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07558270837102,42.33341958190359]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0725175202604,42.332180237513874]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07492171396173,42.32888457061036]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07798690207234,42.33012391500008]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0068","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2097.0 -0.0,1789.0 237.2,1756.4 58.4,1356.7 264.4,1221.4 233.6,611.4 192.2,588.6 220.3,513.6 174.6,236.8 923.9,0.0 1452.0,0.0 1452.0,457.2 1342.4,852.5 1010.5,787.2 1407.8,2027.2 1394.4,2097.0 -0.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07352241092612,42.332039359821984]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07042725041931,42.33080360349473]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07282443334459,42.327475640636784]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0759195938514,42.32871139696404]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0069","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.5,810.7 1245.2,95.0 1279.8,1466.8 1216.5,1769.5 1220.4,1972.0 1452.0,2052.6 1452.0,2097.0 -0.0,2097.0 -0.0,813.5 96.5,810.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0744838556384,42.328425654943565]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07209412328977,42.33031542942364]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06842834105274,42.32774588454045]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07081807340137,42.32585611006037]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0007","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"281.1,2042.7 294.1,-0.0 1338.4,-0.0 1322.7,2042.3 364.6,2042.6 364.3,2097.0 280.2,2097.0 280.4,2042.7 281.1,2042.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07167108592421,42.35416231661419]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07045305302181,42.35168781840016]}},{"type":"Feature","properties":{"resourceCoords":[1467.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07520583680828,42.35039202805403]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07642386971068,42.352866526268066]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p70","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0070/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0070","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1391.0 68.2,1094.1 77.1,78.0 483.9,89.0 841.8,0.0 982.5,0.0 871.2,438.6 1118.9,499.4 1250.9,0.0 1452.0,0.0 1452.0,2097.0 -0.0,2097.0 -0.0,1713.5 225.7,1717.9 226.5,1674.2 -0.0,1590.3 -0.0,1391.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0070/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07190248971014,42.32953530916245]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06952630054165,42.331489113329894]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06573624410873,42.32893417750974]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06811243327722,42.326980373342295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0072","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"871.7,1169.0 430.1,747.1 1270.5,625.4 1238.5,415.1 1452.0,352.6 1452.0,2092.1 1179.4,2097.0 1189.3,1638.8 1051.7,1675.2 1126.9,1633.9 871.7,1169.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07484853265059,42.33215862682818]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07191612507326,42.33357805583358]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06916257791802,42.330425163659385]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07209498549535,42.32900573465399]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0075","type":"ImageService3","width":1452,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"783.0,2097.0 575.8,2097.0 490.2,1966.7 -0.0,1169.2 -0.0,0.0 1452.0,0.0 1452.0,529.1 1452.0,1139.4 1452.0,1269.5 1452.0,1269.8 1414.7,2002.7 1259.1,2097.0 783.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0075/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1062844,42.351986]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1028408,42.3515148]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10376169999999,42.3478392]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1072053,42.3483104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p76","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0076","type":"ImageService3","width":1458,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1118.7,2097.0 389.3,1590.0 224.4,1312.5 70.0,582.0 65.2,377.1 1362.0,252.8 1458.0,500.1 1458.0,964.7 1458.0,994.5 1458.0,1944.6 1202.2,2097.0 1118.7,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0076/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10335458628322,42.35165054085322]}},{"type":"Feature","properties":{"resourceCoords":[1458.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0999383864907,42.351179559618956]}},{"type":"Feature","properties":{"resourceCoords":[1458.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10084854584086,42.34752267512112]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10426474563337,42.347993656355385]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0077","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2097.0 -0.0,528.3 96.3,271.4 -0.0,278.1 0.0,0.0 887.2,0.0 931.8,219.7 1165.4,205.3 1460.0,1175.9 1460.0,2097.0 -0.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0077/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10039750420748,42.35126987044242]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09697610298123,42.350864261629894]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09775885540365,42.347206813986105]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1011802566299,42.34761242279863]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p78","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0078","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1943.9 258.9,1619.6 331.9,1274.2 -0.0,1204.7 -0.0,493.8 268.0,532.8 216.8,362.8 232.9,260.1 -0.0,227.6 0.0,0.0 1460.0,0.0 1460.0,973.2 1239.0,1045.0 1168.2,808.2 989.4,855.4 982.2,1318.6 1361.7,1322.1 1355.5,1604.2 978.0,1597.5 970.3,2097.0 -0.0,2097.0 -0.0,1943.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0078/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0983186439895,42.35102723804717]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09487499970876,42.351136208216175]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0946647069799,42.347454979503404]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.09810835126063,42.3473460093344]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p79","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0079","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1460.0,2097.0 -0.0,2097.0 -0.0,1548.5 379.1,1549.2 381.0,1263.9 -0.0,1266.4 -0.0,798.0 178.8,747.5 253.6,985.7 474.3,909.6 460.4,0.0 1460.0,0.0 1460.0,116.1 1326.5,161.1 1460.0,563.4 1460.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[378.0,1704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0949534,42.3480433]}},{"type":"Feature","properties":{"resourceCoords":[378.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0950017,42.3493665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0008","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.5,1988.8 92.3,2097.0 -0.0,2097.0 -0.0,165.6 90.6,165.9 90.6,98.8 1467.0,99.9 1467.0,1979.5 92.5,1988.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,1986.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0812627,42.3530596]}},{"type":"Feature","properties":{"resourceCoords":[404.0,96.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0769453,42.354224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p80","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0080","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1405.6,-0.0 1460.0,128.9 1460.0,388.4 1423.2,388.1 1460.0,2097.0 -0.0,2097.0 -0.0,197.1 111.8,-0.0 1405.6,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0080/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1036152,42.349727]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1024037,42.3472797]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1071596,42.3459936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1083711,42.3484409]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p81","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0081/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0081","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"278.4,1086.7 236.0,278.0 290.7,278.9 293.1,20.4 899.2,1039.0 278.4,1086.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[236.0,618.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1041006,42.3469193]}},{"type":"Feature","properties":{"resourceCoords":[236.0,278.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1033292,42.3471338]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p82","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0082/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0082","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1535.0 0.0,0.0 1460.0,-0.0 1460.0,898.8 800.7,1295.2 807.9,1574.1 -0.0,1576.0 192.0,1476.5 -0.0,1535.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[809.0,1624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1025604,42.3473402]}},{"type":"Feature","properties":{"resourceCoords":[809.0,1967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1033292,42.3471338]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p83","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0083","type":"ImageService3","width":1460,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1460.0,2097.0 -0.0,2097.0 -0.0,271.0 155.7,-0.0 1460.0,-0.0 1460.0,2097.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0083/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10212536848422,42.347728507838085]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0993577595969,42.34607102131122]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.1025562125824,42.34311228745419]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2097.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.10532382146972,42.34476977398106]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1897 | sanborn03693_009 p9","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"13"}],"created":"2026-09-23T18:13:12Z","modified":"2026-09-23T18:13:12Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0009","type":"ImageService3","width":1467,"height":2097},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"356.9,155.0 356.9,100.7 1227.1,101.9 1267.6,1170.6 1320.5,1168.8 1319.2,1876.9 275.0,1878.8 272.5,155.0 356.9,155.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd376m:g3764m:g3764bm:g03693189702:03693_02_1897-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1319.0,1991.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0795006,42.3495151]}},{"type":"Feature","properties":{"resourceCoords":[1319.0,100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0752018,42.3506693]}}]}}]}