{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03693_011.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boston, Massachusetts | 1899 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"112"},{"label":"placed","value":"89"},{"label":"unplaced","value":"23"},{"label":"fit sources","value":"georef-snap 50, georef 33, snap:0 5, georef-street 1, snap:2 1, streets-candidate 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 42.31904,-71.06100 +/-245m); p12 (tier 1, 42.34444,-71.04294 +/-247m); p16 (tier 1, 42.34574,-71.05204 +/-247m); p18__1 (tier 1, 42.34624,-71.04998 +/-226m); p18__3 (tier 2, 42.34736,-71.04837 +/-312m); p18__4 (tier 1, 42.34734,-71.05070 +/-100m); p19 (tier 1, 42.34389,-71.05083 +/-100m); p32 (tier 1, 42.33716,-71.03546 +/-247m); p33 (tier 1, 42.33793,-71.02833 +/-242m); p38 (tier 1, 42.33545,-71.02793 +/-219m); p3__1 (tier 2, 42.31278,-71.05485 +/-100m); p3__2 (tier 1, 42.35344,-71.04667 +/-233m); p4 (tier 3, 42.34563,-71.03313 +/-1244m); p5 (tier 1, 42.34980,-71.04363 +/-241m); p6 (tier 1, 42.33170,-71.03539 +/-247m); p63 (tier 1, 42.33460,-71.02815 +/-248m); p65 (tier 1, 42.33391,-71.05841 +/-249m); p76 (tier 1, 42.33462,-71.03532 +/-243m); p77 (tier 1, 42.33147,-71.03524 +/-128m); p9__1 (tier 1, 42.32187,-71.05921 +/-218m); p9__2 (tier 1, 42.32094,-71.05914 +/-211m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0001/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4678.3,5702.8 1527.6,6353.9 1504.7,6144.9 1570.5,3017.6 1861.8,2591.8 1702.2,1736.8 -0.0,2054.7 0.0,0.0 5508.0,0.0 5508.0,661.7 4402.1,867.9 4616.2,1900.6 4678.3,5702.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05304867680839,42.35050650951067]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05077146566087,42.35240990068228]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04710524326289,42.349980277282796]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0493824544104,42.34807688611119]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0010/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0010/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5508.0,7896.0 -0.0,7840.6 0.0,0.0 5508.0,0.0 5508.0,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04372473965896,42.34935308480933]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04212830157442,42.34872920374861]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04332993872575,42.34702584176321]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04492637681028,42.34764972282393]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p100","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0100/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0100/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1228.4,7599.7 1290.5,5556.8 535.5,5564.5 563.8,949.5 4411.8,0.0 5054.0,0.0 4985.7,4073.6 5117.4,6570.3 4900.6,6625.7 4500.5,6733.2 4581.3,7465.8 5472.0,7367.6 5472.0,7988.0 1374.2,7988.0 1441.7,7559.6 1228.4,7599.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0100/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05734123126105,42.31526881373839]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05656804569601,42.31774871671851]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05170656459109,42.31690822437663]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05247975015612,42.31442832139651]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0101/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p101","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0101/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0101/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7988.0 -0.0,5290.2 733.0,5312.0 406.9,1493.4 4959.8,1485.5 4951.0,5016.9 4554.4,7292.0 2675.4,6561.7 842.2,6800.3 771.8,5770.8 333.3,5766.2 310.4,7988.0 -0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0101/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2660.0,4664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0557691,42.3137323]}},{"type":"Feature","properties":{"resourceCoords":[4944.0,736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.053777,42.315269]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0102/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p102","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0102/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0102/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1429.6,4734.0 797.9,461.6 2828.6,204.7 2755.7,0.0 5472.0,0.0 5472.0,7988.0 1363.3,7064.7 1429.6,4734.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0102/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05413043633041,42.3156067688512]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05096595207849,42.3146536118042]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05283439598344,42.311213510174454]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05599888023536,42.312166667221454]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p103","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0103/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0103/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4689.0,2385.9 2964.7,6729.8 737.6,6610.8 819.0,5332.0 0.0,5258.6 0.0,-0.0 5472.0,0.0 5472.0,445.2 4427.6,527.4 4689.0,2385.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0103/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3540.0,5288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0544639,42.3120234]}},{"type":"Feature","properties":{"resourceCoords":[920.0,2416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0566015,42.3111769]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p104","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0104/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0104/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,-0.0 1348.7,0.0 1371.5,629.5 2465.0,583.1 2301.8,1352.1 5472.0,1474.8 5472.0,7988.0 0.0,7988.0 0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0104/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05542720076159,42.30960676965474]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05308447897751,42.3144512842263]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04358830550669,42.311904417157734]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04593102729078,42.30705990258617]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p11","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0011/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0011/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,486.8 1788.5,-0.0 5508.0,-0.0 5508.0,1427.0 4340.7,7896.0 -0.0,7896.0 -0.0,486.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4328.0,2152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0429907,42.3455505]}},{"type":"Feature","properties":{"resourceCoords":[4328.0,7820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0452452,42.343595]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0013/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0013/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 5508.0,0.0 5508.0,144.2 2715.2,663.3 2771.0,952.8 4606.8,3571.2 4707.7,4095.4 4584.3,5130.4 2681.3,7071.5 216.4,1760.5 -0.0,1895.3 0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06148894587184,42.343006637595444]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05905815961586,42.34486388591275]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0554812482655,42.34227009487673]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05791203452148,42.340412846559424]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p14","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0014/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0014/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3869.1,5808.9 4757.3,6897.9 3757.2,6578.5 3220.7,6578.3 296.3,7896.0 -0.0,7896.0 0.0,-0.0 3444.3,0.0 4317.3,5630.1 3869.1,5808.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0572393,42.346772]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0543439,42.3453537]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0570948,42.342285999999994]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0599902,42.3437043]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0015/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0015/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4208.9,6297.7 2882.3,5787.9 -0.0,6173.6 0.0,-0.0 4914.4,0.0 4760.7,1762.4 4796.2,4255.7 4208.9,6297.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05532563175868,42.34605058578261]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05223595035466,42.34498429042156]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05428959223754,42.34168748798891]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05737927364156,42.34275378334996]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0017/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0017/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2499.6,7010.8 1498.8,7415.1 839.5,5016.0 537.1,3209.4 -0.0,3346.4 0.0,0.0 5508.0,-0.0 5508.0,2560.7 4974.5,2545.8 4914.2,4392.8 3998.3,4390.8 3967.5,5123.4 2755.9,5088.6 2736.9,6557.0 2499.6,7010.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0017/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05161004101605,42.34635655855334]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0490611131572,42.34481018228431]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05203937229281,42.34209038426081]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05458830015166,42.34363676052983]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0018__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 | 1899 | sanborn03693_011 p18 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4593.6"},{"label":"split_canvas_w","value":"2399.6"},{"label":"split_canvas_h","value":"3302.4"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0018__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0018/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,7896.0 1496.5,7896.0 1500.3,5488.9 0.0,5460.2 0.0,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[575.9,4733.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0511185,42.3469586]}},{"type":"Feature","properties":{"resourceCoords":[2111.6,4733.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0506407,42.3475744]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0002/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,7896.0 16.7,7032.5 1031.9,1049.5 1010.8,0.0 5508.0,0.0 5508.0,7896.0 0.0,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05115206546535,42.35135840650636]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04937384297843,42.353550457474235]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04515152997497,42.35165325912929]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04692975246189,42.349461208161415]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0020/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0020/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1141.7,715.2 1130.6,-0.0 5508.0,-0.0 5508.0,7896.0 -0.0,7896.0 -0.0,6267.1 1250.7,6256.0 1314.5,705.1 1141.7,715.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04328615949517,42.34618129226401]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04064612946053,42.34448870506925]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04390598503501,42.34167169775013]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04654601506965,42.34336428494489]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0021/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0021/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3570.3,5950.3 3176.7,5502.9 3126.9,5264.5 195.3,2232.0 3293.0,802.1 4715.3,918.2 4729.6,6914.6 3570.9,5605.0 3568.2,5942.1 3570.3,5950.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0021/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05641378588479,42.34434734010205]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05386279482906,42.34268338566237]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05706741410562,42.33996130906299]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05961840516134,42.34162526350267]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p22","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0022/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0022/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1218.8,6664.6 1188.6,2260.7 2311.0,-0.0 3470.1,-0.0 5508.0,5195.4 5508.0,7896.0 4584.8,7896.0 1218.8,6664.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4588.0,4456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0530097,42.3415823]}},{"type":"Feature","properties":{"resourceCoords":[4588.0,6680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0539237,42.3408057]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p23","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0023/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0023/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1148.7,7896.0 1150.7,5515.5 -0.0,5503.2 9.2,1839.3 908.0,1816.2 904.1,-0.0 5508.0,-0.0 5508.0,1839.6 4501.8,1836.7 4511.8,7123.9 4364.8,7124.4 3252.5,7128.5 3248.7,7896.0 1148.7,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1148.0,3896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.051714,42.342685]}},{"type":"Feature","properties":{"resourceCoords":[1148.0,7136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0530097,42.3415823]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0024/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0024/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1228.4,7896.0 -0.0,7896.0 0.0,-0.0 4437.8,-0.0 4437.8,-0.0 5508.0,12.1 4497.1,6925.4 1228.4,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0024/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04915657659633,42.343389771134916]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04657641390605,42.34169265631483]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04984481425878,42.33893938199304]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05242497694906,42.34063649681313]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p25","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0025/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0025/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1338.1,6946.6 1387.6,-0.0 5508.0,-0.0 5508.0,408.0 3570.2,394.7 3558.2,2139.4 4472.9,2145.2 4677.2,2146.5 4650.5,6960.1 1338.1,6946.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0025/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04774378186724,42.34242916528161]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04514696860177,42.34077437334212]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04833383603308,42.33800330947111]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05093064929855,42.3396581014106]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0026/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0026/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1130.7,6589.1 1124.3,1752.4 -0.0,1753.0 0.0,0.0 4082.9,-0.0 4006.6,6591.0 1130.7,6589.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04621989472572,42.34121804188031]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04365068862377,42.339557914413994]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04684778504738,42.33681627041514]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04941699114933,42.33847639788146]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0027/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0027/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7264.6 0.0,-0.0 5508.0,-0.0 5508.0,1434.1 4943.9,1955.8 5078.7,7193.0 -0.0,7264.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0027/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0440143205916,42.340239658325395]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04144992919032,42.33854340004789]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04471654956787,42.335806845929746]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04728094096915,42.33750310420725]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0028/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0028/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1208.7,4793.6 1198.3,3348.2 -0.0,3356.8 0.0,-0.0 174.6,-0.0 3029.7,3084.5 3626.5,2524.5 4869.0,3826.7 1325.2,7235.9 803.4,7493.9 728.6,7896.0 643.9,5323.5 1208.7,4793.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0028/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04061450039744,42.340056341750284]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03808663610266,42.33835983393675]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04135373100007,42.33566225422495]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04388159529485,42.337358762038484]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p29","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0029/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0029/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5508.0,0.0 5508.0,3237.3 4900.0,3249.8 4731.7,3416.5 4783.2,7002.4 -0.0,7036.1 0.0,0.0 5508.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0029/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04055747496594,42.341314074870525]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03712162742113,42.34134717473733]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03705744150514,42.33770595570462]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04049328904995,42.337672855837816]}},{"type":"Feature","properties":{"resourceCoords":[3968.0,7008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0380253,42.3381062]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0030/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0030/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4386.6,6980.3 1093.6,6961.1 1088.4,3340.2 1261.7,3174.1 1880.0,3169.7 1921.4,0.0 5508.0,0.0 5508.0,582.2 4424.5,579.8 4386.6,6980.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0030/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03829940968372,42.34127914946133]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03492076439258,42.34134500578207]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03479393753724,42.33773959083157]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03817258282838,42.33767373451083]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p31","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0031/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0031/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4212.0,6336.0 885.9,6339.2 911.3,0.0 5508.0,0.0 5508.0,7896.0 4207.8,7896.0 4212.0,6336.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0031/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0361444704984,42.34105714015527]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03270933229017,42.34111845257113]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0325904377461,42.3374779852743]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03602557595433,42.33741667285844]}},{"type":"Feature","properties":{"resourceCoords":[4212.0,6336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0334222,42.3381828]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0034/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0034/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5371.8,6011.8 4365.6,6007.5 4357.3,7474.1 937.4,7446.3 959.6,1996.3 -0.0,1990.9 0.0,0.0 5508.0,0.0 5508.0,7896.0 5363.6,7896.0 5371.8,6011.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02787349185337,42.33919454806472]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02446834445774,42.33925912342844]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0243439878149,42.33562533026484]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02774913521053,42.33556075490112]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p35","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0035/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0035/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1280.4,7052.0 1290.9,6815.5 0.0,7272.7 -0.0,0.0 5508.0,0.0 5508.0,5607.2 2992.5,6345.5 1957.4,6953.9 1280.4,7052.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0035/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06144801868858,42.33792702207788]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06050098463878,42.34036885340088]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05576588461372,42.33936521212699]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05671291866352,42.33692338080399]}},{"type":"Feature","properties":{"resourceCoords":[5072.0,5736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0571367,42.339447]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0036/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0036/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5101.8,0.0 5132.6,5952.0 4860.3,5918.5 1162.6,7307.3 792.5,1668.4 0.0,1717.5 0.0,-0.0 5101.8,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0036/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06163797137586,42.34028352597999]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06049204853453,42.34267237079749]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05589141305842,42.34144958071797]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05703733589975,42.339060735900475]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p37","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0037/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0037/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4534.3,3638.1 4468.5,7988.0 4030.2,7696.5 -0.0,3198.3 -0.0,2854.3 1155.7,4164.7 1136.9,418.8 4536.1,427.5 4535.4,1654.3 5466.8,1652.4 5472.0,3639.8 4534.3,3638.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1152.0,2472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0563402,42.3411207]}},{"type":"Feature","properties":{"resourceCoords":[2584.0,6064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0571367,42.339447]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p39","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0039/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0039/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4492.0,7168.0 733.9,7136.2 737.7,6539.1 -0.0,6532.4 -0.0,5863.7 -0.0,5863.7 -0.0,2001.9 1208.2,2021.6 1213.6,1054.9 4523.4,1093.1 4492.0,7168.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4492.0,5352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0516539,42.3381198]}},{"type":"Feature","properties":{"resourceCoords":[4492.0,7168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0523884,42.3374892]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0040/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0040/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4423.1,7162.3 1115.6,7163.9 1123.1,1112.6 4439.5,1092.2 4423.1,7162.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0040/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04998690872256,42.34031686539484]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04743303980456,42.338655346052455]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05069134307452,42.33588013232739]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05324521199252,42.337541651669774]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0041/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0041/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4329.8,6950.1 1076.9,6952.4 1115.0,891.0 4366.1,893.7 4329.8,6950.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0041/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04852069505783,42.339238009335034]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04595526434987,42.33758091884562]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04920482483128,42.33479309181875]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05177025553924,42.33645018230817]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p42","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"23"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0042/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0042/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3662.4,6908.4 393.2,6903.8 378.9,874.7 5060.0,856.0 5091.3,2534.5 5226.6,2778.5 4772.5,3110.1 3662.4,6908.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4204.0,5124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0467887,42.3349578]}},{"type":"Feature","properties":{"resourceCoords":[5060.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0446256,42.3361827]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0043/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0043/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"910.8,7590.5 880.0,619.2 2450.5,620.2 2800.0,481.5 4664.5,2180.8 4496.5,2736.5 4561.6,7640.9 910.8,7590.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0043/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04464209404543,42.33507870741448]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04470682465897,42.3376018143376]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03975905145596,42.33767215711786]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03969432084241,42.33514905019474]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0044/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0044/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4815.1,1287.0 4780.1,6741.6 696.0,6704.9 799.7,1239.3 4815.1,1287.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04051239208432,42.33863428793108]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03713684621837,42.33871432090523]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03697990164723,42.335046141172306]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04035544751318,42.33496610819815]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0045/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0045/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4417.6,1254.4 4478.5,6708.8 1215.8,6754.5 1135.1,1286.2 4417.6,1254.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0045/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0382239449554,42.33869750377603]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03485567644323,42.33872424287361]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03480324094033,42.33506398276395]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03817150945251,42.33503724366637]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0046/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0046/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4373.5,6445.3 1022.5,6416.3 1056.8,988.6 4410.9,999.4 4400.6,2561.6 5472.0,2566.1 5472.0,5068.2 4383.7,5047.8 4373.5,6445.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.036167230398,42.33858567078193]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03278342986009,42.33865661363123]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03264431071567,42.334979471480096]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03602811125357,42.3349085286308]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p47","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0047/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0047/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6452.2 -0.0,-0.0 5472.0,0.0 5472.0,1009.3 4599.1,1004.1 5472.0,6471.0 5472.0,7988.0 4570.3,7988.0 -0.0,6452.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3488.0,1000.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0300065,42.3382451]}},{"type":"Feature","properties":{"resourceCoords":[1296.0,6460.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0312813,42.3357091]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p48","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0048/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0048/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1262.9,1265.9 2128.5,1280.1 2139.0,279.2 -0.0,256.9 -0.0,-0.0 3626.7,0.0 3612.2,1304.4 4558.2,1319.9 4476.1,6730.7 3410.0,7988.0 2058.7,7988.0 1180.1,6684.1 1262.9,1265.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2916.0,4856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0281974,42.336621]}},{"type":"Feature","properties":{"resourceCoords":[2052.0,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0288206,42.3382633]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0049/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0049/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3187.6,7988.0 -0.0,7988.0 -0.0,7477.8 1022.3,-0.0 3839.5,-0.0 4479.7,587.2 5472.0,6461.2 5472.0,6644.8 3187.6,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0049/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05572091343011,42.34001166216286]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05312254058934,42.338327567511215]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05642509299948,42.33550397395996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05902346584024,42.3371880686116]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p50","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"2"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0050/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0050/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4325.8,1241.7 4235.7,7790.7 1136.6,6375.8 1203.2,4082.5 1422.1,3383.0 1377.3,1217.0 4325.8,1241.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1172.0,4644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0553959,42.3372367]}},{"type":"Feature","properties":{"resourceCoords":[1172.0,5676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0558349,42.3368593]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0051/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0051/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4250.3,6778.8 895.0,6645.2 928.6,1122.7 4230.6,1109.8 4250.3,6778.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0051/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05236074379992,42.33816224473552]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04981028062646,42.33649153337638]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05308653243985,42.33371995513568]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05563699561331,42.33539066649482]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p52","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"7"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0052/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0052/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4464.3,966.7 4392.9,7061.7 1143.8,6628.0 1197.1,927.2 4464.3,966.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3616.0,6960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0521274,42.3336617]}},{"type":"Feature","properties":{"resourceCoords":[2844.0,4544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0515202,42.3347345]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p53","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"21"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0053/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0053/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2327.4,7145.5 2496.9,5873.4 2352.2,5803.0 2164.5,7127.1 579.7,6933.4 608.0,851.7 3902.4,880.0 3513.7,1965.2 3675.4,1966.3 3257.0,3353.0 4603.4,4758.4 3665.4,5598.3 4946.3,7105.7 2327.4,7145.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3664.0,5600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0498081,42.3329339]}},{"type":"Feature","properties":{"resourceCoords":[3904.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0477808,42.3345025]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p54","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0054/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0054/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,4060.8 5472.0,4270.7 4402.2,4300.6 4435.9,7506.0 2611.8,7526.2 600.6,5775.1 651.9,3799.9 1909.4,3800.0 1844.0,1857.1 3050.5,1078.0 2959.7,995.5 4294.1,250.0 4399.7,4064.6 5472.0,4060.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3160.0,3800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0482484,42.3329545]}},{"type":"Feature","properties":{"resourceCoords":[4436.0,3800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0474549,42.332965]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0055/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0055/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3693.4,2158.8 5212.0,502.7 5348.9,849.6 5381.6,7988.0 92.7,7988.0 -0.0,4216.3 3068.3,2367.2 3628.4,2428.8 3693.4,2158.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0055/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04763885420236,42.33655604576311]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04422134809583,42.336610323908815]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0441149122818,42.332896421814496]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04753241838833,42.33284214366879]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p56","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0056/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0056/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4889.1,6569.4 527.2,6622.3 502.6,6144.8 435.9,1099.4 4821.5,1041.2 4889.1,6569.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0056/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0445464,42.3359903]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0411618,42.336019]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04110519999999,42.3323666]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0444898,42.3323379]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p57","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0057/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0057/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4045.1,6811.3 1486.4,6832.2 1439.6,1341.9 4036.0,1325.3 4045.1,6811.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0057/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04245984509723,42.33614711837047]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03907581453677,42.33618577499555]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03900001195824,42.33250822853934]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04238404251869,42.33246957191426]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0058/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0058/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4956.9,6350.9 858.0,6363.4 876.5,906.1 4930.8,896.1 4956.9,6350.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0058/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04050761401686,42.33597653955767]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03710614269136,42.33602818838784]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03700486375718,42.33233167642348]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04040633508268,42.332280027593306]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0059/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0059/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,6763.8 5472.0,7988.0 1788.2,7988.0 1788.0,6765.9 1133.0,6766.2 1120.4,1285.5 4366.3,1279.7 4432.5,6764.5 5472.0,6763.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0059/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03814252315186,42.336188635855656]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03475728247399,42.33624631741633]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03464417344301,42.33256745787735]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03802941412089,42.33250977631668]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p60","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0060/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0060/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6943.1 944.3,1445.4 4267.0,1395.1 4378.0,6859.4 3081.9,7988.0 2975.9,7988.0 2160.6,7988.0 1122.8,7988.0 -0.0,7988.0 -0.0,6943.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0060/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03601634209413,42.33630995862992]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03260269553962,42.33632126930013]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0325803608153,42.33263734895535]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03599400736981,42.33262603828514]}},{"type":"Feature","properties":{"resourceCoords":[2484.0,5088.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0344525,42.3339686]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p61","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"9"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0061/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0061/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4584.8,6784.6 1296.2,6831.3 1197.2,0.0 3206.8,0.0 3229.3,1361.5 4378.6,1349.5 4516.0,1348.0 4584.8,6784.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2376.0,6816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0325896,42.3331674]}},{"type":"Feature","properties":{"resourceCoords":[4516.0,1348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0312813,42.3357091]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p62","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0062/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0062/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4452.3,6876.9 1161.4,6885.2 1156.0,1416.0 4428.4,1407.8 4433.6,2926.1 5334.2,2921.7 5333.1,2707.2 5472.0,2705.1 5472.0,5806.4 4451.6,5794.9 4452.3,6876.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1156.0,5080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0312331,42.3340225]}},{"type":"Feature","properties":{"resourceCoords":[1156.0,1416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0312813,42.3357091]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0064/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0064/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1070.0,5863.1 -0.0,5851.0 -0.0,1449.8 123.7,1449.7 125.7,1901.2 685.7,1898.8 1058.1,1448.9 4467.1,1461.9 4469.0,0.0 5472.0,0.0 5472.0,7988.0 4880.1,7988.0 4903.4,5906.6 4461.1,5901.6 4458.9,6888.6 1069.5,6896.4 1070.0,5863.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0064/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02785202321553,42.336437415579]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02445787654128,42.33649084882541]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02435309796577,42.332802316343454]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02774724464003,42.33274888309704]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p66","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0066/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0066/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5125.1,8.6 4972.6,7988.0 -0.0,7988.0 -0.0,-0.0 5125.1,8.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0066/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06020511782137,42.33484264235767]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05683373289361,42.33492270881319]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05667673162573,42.33125884165217]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06004811655347,42.331178775196655]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p67","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0067/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0067/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4091.6,6754.6 2390.9,4770.9 -0.0,6917.8 -0.0,632.8 2365.8,1760.3 2369.1,1572.1 4382.1,2512.2 5472.0,3034.5 5472.0,3221.0 4374.7,2720.1 4271.4,6426.7 4091.6,6754.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0067/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0562866796674,42.33729069013322]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05371383458501,42.335681375974666]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05686962393122,42.33288541955075]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0594424690136,42.334494733709306]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0068/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0068/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,4224.0 5472.0,5522.7 1275.0,6685.0 871.2,6237.3 1041.6,5910.7 1067.7,2258.2 2158.6,2729.0 2154.8,2545.4 1226.7,2122.9 1070.7,2053.3 1079.7,725.6 4420.8,865.7 4054.9,3581.8 5472.0,4224.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0068/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05487726312874,42.33616685622718]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05231141310759,42.33449317823905]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0555933440222,42.33170476155882]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05815919404336,42.33337843954695]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0069/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0069/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1610.5,5600.6 1534.8,4300.3 78.6,3740.0 286.6,999.3 5124.0,1268.1 5220.6,-0.0 5377.3,-0.0 4803.8,5563.3 3027.6,4945.7 2760.4,5233.4 1610.5,5600.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0069/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05285105246993,42.33493509688654]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05042723782577,42.33315827373179]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05391135968243,42.3305241618996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05633517432659,42.33230098505435]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0007/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7896.0 0.0,-0.0 897.0,0.0 1273.5,376.0 4647.9,1050.9 4727.1,5558.5 5508.0,5540.0 5508.0,7896.0 -0.0,7896.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05153850025503,42.35056029111765]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04869568167422,42.34928364584479]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05115463277554,42.346250481720894]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05399745135635,42.347527126993754]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p70","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0070/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0070/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1170.1,6342.8 -0.0,5770.5 -0.0,4885.8 954.6,4893.9 1000.4,2222.4 -0.0,2178.9 -0.0,1976.1 603.4,1032.0 4640.1,1906.8 4587.8,6213.4 1371.7,6188.7 1170.1,6342.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0070/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05379648007002,42.331680325519564]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05166336509896,42.33365071219529]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.047799766241,42.33133247626989]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04993288121206,42.32936208959416]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p71","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0071/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0071/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"167.0,7988.0 401.9,6336.1 -0.0,6849.0 -0.0,6100.1 511.2,4943.8 339.8,4671.1 242.5,1535.8 1287.5,1494.8 2547.3,286.5 4043.2,1942.3 5472.0,571.3 5472.0,7988.0 167.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0071/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04848734850786,42.33213760615582]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0459289303535,42.33046960269691]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04919952277825,42.32768908295154]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05175794093262,42.32935708641045]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0072/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0072/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,-0.0 5472.0,6770.3 -0.0,6648.2 -0.0,1276.6 5145.1,1399.3 5173.6,-0.0 5472.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0072/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04338554724376,42.3328731461343]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04323236935561,42.330370125794246]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04814037799883,42.33020365460866]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04829355588699,42.33270667494871]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p73","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0073/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0073/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,6698.2 2099.6,6646.4 2092.4,6347.8 701.2,6353.5 699.3,942.6 5060.0,932.0 5106.9,6334.9 3651.1,6345.6 3656.6,7988.0 -0.0,7988.0 -0.0,6698.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3880.0,4512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0421589,42.3313635]}},{"type":"Feature","properties":{"resourceCoords":[5060.0,932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0414758,42.3330122]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0074/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0074/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7988.0 -0.0,2639.2 1448.7,845.8 4044.8,849.0 5472.0,7329.0 5472.0,7988.0 -0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0074/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04237143255733,42.33337969724035]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03903663792283,42.333441115230066]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03891620737272,42.32981691689751]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04225100200722,42.329755498907794]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0075/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0075/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"707.1,6455.4 690.3,405.4 5472.0,403.7 5472.0,7988.0 -0.0,7988.0 -0.0,7451.8 2110.4,7448.3 2109.3,6797.9 707.1,6455.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0075/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04032567251215,42.33321896676868]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03694634540912,42.33327703139222]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03683248982323,42.32960444992302]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04021181692626,42.32954638529948]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p78","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0078/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0078/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,697.7 4424.5,692.0 4426.1,5818.2 4512.5,6227.1 5472.0,5651.7 5472.0,7988.0 -0.0,7988.0 -0.0,697.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3272.0,2520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0318851,42.3323545]}},{"type":"Feature","properties":{"resourceCoords":[4412.0,2520.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0311887,42.332366]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0079/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0079/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"923.0,1098.9 4263.7,0.0 5472.0,0.0 5472.0,3905.5 3362.1,5191.3 3361.5,5507.3 5472.0,5512.0 5472.0,7988.0 2041.8,7988.0 2021.1,6008.5 1068.5,6589.1 979.4,6325.5 923.0,1098.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0079/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.03177847170268,42.33368684330391]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02843230170988,42.33371677056764]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0283736189989,42.330080227149054]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0317197889917,42.33005029988532]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0008/info.json","type":"ImageService2","height":7896,"width":5508},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1006.9,3082.1 1007.3,3082.1 1019.7,317.1 4134.9,792.0 4153.9,0.0 5508.0,0.0 5508.0,7896.0 977.4,7896.0 1006.9,3082.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0489197262037,42.35073038269489]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04594308063048,42.34946409981333]}},{"type":"Feature","properties":{"resourceCoords":[5508.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04838209388399,42.34628817568777]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7896.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05135873945721,42.34755445856933]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p80","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0080/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0080/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2874.6,7074.5 1080.2,7102.2 1064.0,5928.2 30.6,5930.3 -0.0,3812.5 1034.7,3801.6 988.4,431.0 -0.0,439.9 -0.0,0.0 5472.0,-0.0 5472.0,7988.0 5160.0,7988.0 3886.0,5922.3 2860.2,5924.4 2874.6,7074.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0080/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02473308999471,42.33375785291781]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02469941141815,42.33123436349345]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02968244421449,42.331198018432126]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.02971612279104,42.33372150785649]}},{"type":"Feature","properties":{"resourceCoords":[2844.0,4616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0275951,42.3324253]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p81","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"13"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0081/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0081/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7988.0 -0.0,7318.5 141.1,7373.7 1922.2,2822.9 717.5,2326.2 1546.2,1570.9 4632.2,1011.0 5072.5,4033.7 5405.6,4294.7 2528.1,7988.0 -0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2528.0,5320.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0582736,42.3305369]}},{"type":"Feature","properties":{"resourceCoords":[4548.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0552867,42.330465]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0082/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p82","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0082/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0082/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1056.2,6865.5 1158.5,3892.6 611.2,2917.1 2593.1,135.0 5149.0,5026.2 5472.0,5241.6 5185.3,6920.6 3117.9,7048.3 1056.2,6865.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0082/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1116.0,5924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0556216,42.3308676]}},{"type":"Feature","properties":{"resourceCoords":[3376.0,7136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0540251,42.3310348]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p83","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0083/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0083/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,2887.9 5024.9,2821.6 4852.2,3914.1 3471.8,3714.8 2281.4,7183.8 1894.6,7004.6 211.3,2668.4 2989.7,1472.2 3568.6,819.8 3889.4,704.4 4072.2,357.8 1822.9,144.7 1825.1,-0.0 5472.0,96.0 5472.0,2887.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0083/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05283627394691,42.33110194818159]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05225426808047,42.32861922072369]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05712232761367,42.32798668586562]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0577043334801,42.33046941332352]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0084/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p84","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0084/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0084/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1557.2,1246.8 33.3,850.9 106.6,705.3 4268.0,1436.2 4199.3,1591.9 4389.3,1605.0 3791.6,2772.4 4912.6,2763.8 5142.9,5461.4 4179.8,5552.0 4300.9,6454.7 3550.5,6500.8 4094.4,6875.5 2408.4,6740.6 2485.1,7988.0 -0.0,7988.0 -0.0,6651.6 600.7,7078.1 2828.6,4147.1 2692.2,4047.1 1203.0,5773.4 1024.6,5420.4 1117.1,5089.2 918.4,4231.7 1557.2,1246.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0084/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0556548933343,42.33069029804851]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05329407907703,42.33246472237291]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.04981479433638,42.329898978714425]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05217560859366,42.32812455439002]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0085/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0085/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4918.0,5824.8 -0.0,5823.5 -0.0,439.5 4839.6,1718.0 4918.0,5824.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0085/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.059994125279,42.33028963993978]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05658006865474,42.3302968649905]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05656590221307,42.32658634498438]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05997995883733,42.326579119933655]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p86","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0086/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0086/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"780.9,6731.9 813.0,1046.8 4374.4,1707.3 4379.7,3084.8 5472.0,3095.3 5472.0,7988.0 3680.7,7988.0 5224.1,5897.9 5228.3,5546.0 3113.6,5520.4 2995.9,6743.9 780.9,6731.9\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0086/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05749747155056,42.32997631381366]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05407101824662,42.330041662616075]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0539428870782,42.32631764609385]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05736934038214,42.32625229729143]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p87","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0087/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0087/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1466.1,4895.1 -0.0,4153.8 -0.0,3495.1 1186.3,2564.9 1301.0,2979.6 1544.7,3135.1 1589.3,2138.8 1322.7,2138.9 1648.9,811.4 -0.0,550.5 -0.0,-0.0 4993.1,0.0 5076.1,7364.9 1098.8,5911.8 1466.1,4895.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0087/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2224.0,2612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0586717,42.3263603]}},{"type":"Feature","properties":{"resourceCoords":[1100.0,5912.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0593813,42.3248071]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0088/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p88","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"3"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0088/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0088/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,6013.0 1011.7,6005.6 1012.0,1256.0 3240.5,1240.9 3344.3,0.0 5472.0,0.0 5472.0,356.6 3944.3,2492.9 5472.0,2474.3 5472.0,6013.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0088/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1012.0,7160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0568505,42.324129]}},{"type":"Feature","properties":{"resourceCoords":[1012.0,1256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0569005,42.3268472]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0089/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p89","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0089/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0089/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"631.8,902.2 5039.2,1405.5 5188.4,5740.5 172.8,7833.3 631.8,902.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0089/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06134925246735,42.32288693149015]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06009121888404,42.32523328624691]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0554910047948,42.32386589812868]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05674903837811,42.32151954337192]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0090/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p90","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0090/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0090/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,0.0 5472.0,7068.1 3538.8,7232.8 1702.5,7988.0 789.4,7988.0 810.2,0.0 5472.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0090/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2296.0,2744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0559028,42.32339]}},{"type":"Feature","properties":{"resourceCoords":[824.0,2744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0568311,42.3233818]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0091/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p91","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0091/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0091/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2583.6,7988.0 -0.0,7988.0 -0.0,-0.0 4925.8,0.0 5198.2,1879.8 4471.8,6684.5 4364.3,6932.4 3237.0,7947.8 2583.6,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0091/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1704.0,4048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0643301,42.3238037]}},{"type":"Feature","properties":{"resourceCoords":[4376.0,6300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0613447,42.3210988]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0092/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p92","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0092/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0092/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"11.4,1206.6 575.2,1328.5 1841.4,712.2 2644.8,564.5 4421.5,332.4 5472.0,407.1 5081.9,7242.9 3156.1,7988.0 3046.4,7660.2 2175.4,7177.1 1648.7,6689.7 804.2,5598.4 239.6,4434.2 0.0,4514.4 0.0,4358.4 178.7,4273.5 0.0,3663.9 11.4,1206.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0092/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06222378320345,42.32069006705425]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06092893948507,42.32306562412103]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05627163371841,42.321658177264894]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0575664774368,42.319282620198116]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0093/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p93","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0093/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0093/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5472.0,0.0 5207.8,1947.7 5398.1,2660.8 5092.8,4501.7 5170.3,5348.4 4981.2,5411.6 4962.2,5567.6 4586.9,5644.5 2868.4,7544.2 2503.3,7420.8 841.1,7561.8 928.3,3176.9 273.2,3117.7 589.7,345.3 0.0,207.1 0.0,-0.0 5472.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0093/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06375817899273,42.318344512646476]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06286448386899,42.32080055538471]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05804954808687,42.31982910920691]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0589432432106,42.317373066468676]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0094/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p94","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0094/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0094/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1065.3,6873.0 1331.4,4717.8 1526.8,4382.5 -0.0,2304.0 -0.0,1661.9 2193.8,1222.6 3261.7,682.5 4006.8,0.0 4429.6,0.0 5006.1,7638.9 1065.3,6873.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0094/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05951716872914,42.320778886422254]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0561296727412,42.3206205223207]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05644013594365,42.31693830571003]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05982763193158,42.31709666981158]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0095/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p95","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0095/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0095/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,7988.0 0.0,7249.8 632.1,7155.2 775.1,4654.8 1290.3,606.2 652.3,535.9 3625.5,163.8 4347.5,1798.0 4857.8,5228.0 5472.0,6029.8 5472.0,7988.0 0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0095/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05709756611785,42.31699744230814]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05669469588884,42.31952105690796]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05174737202712,42.31908312982879]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05215024225613,42.316559515228974]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0096/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p96","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0096/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0096/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4384.4,590.4 4985.3,662.7 4901.7,1573.6 5472.0,3414.8 5472.0,7988.0 283.4,7988.0 649.1,6366.0 230.2,5457.3 484.2,2031.3 142.5,294.6 4384.4,590.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0096/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05690445067535,42.31857981830614]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05726002185175,42.32113132848347]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05225785099177,42.32151782827731]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05190227981537,42.31896631809998]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0097/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p97","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0097/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0097/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7988.0 -0.0,-0.0 2349.8,0.0 4639.0,2592.9 4664.0,7309.3 4344.8,7988.0 -0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0097/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4664.0,1932.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0616916,42.3183748]}},{"type":"Feature","properties":{"resourceCoords":[4664.0,7308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0627326,42.3160094]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0098/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p98","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0098/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0098/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"368.2,6138.7 776.8,806.6 5128.0,1016.8 5208.8,7783.5 4988.2,7750.1 4998.1,7988.0 -0.0,7988.0 -0.0,6014.9 368.2,6138.7\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0098/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3652.0,7288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0608956,42.3151305]}},{"type":"Feature","properties":{"resourceCoords":[5180.0,5736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0597313,42.3156635]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0099/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boston, Massachusetts | 1899 | sanborn03693_011 p99","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-21T10:44:16Z","modified":"2026-09-21T10:44:16Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0099/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0099/info.json","type":"ImageService2","height":7988,"width":5472},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7988.0 -0.0,6637.6 221.4,6679.7 420.0,375.9 4416.4,602.4 5182.8,4165.7 5353.2,7988.0 -0.0,7988.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g03693189904:03693_04_1899-0099/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.05933493556877,42.31778883217256]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0559974132478,42.31729006397315]}},{"type":"Feature","properties":{"resourceCoords":[5472.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.056975168439,42.31366198493814]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7988.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06031269075997,42.31416075313756]}}]}}]}