{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03774_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Malden, Massachusetts | 1887 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"18"},{"label":"placed","value":"14"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 12, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 14 panels"},{"label":"unplaced pages","value":"p1 (tier 1, 42.41649,-71.05812 +/-127m); p5__1 (tier 1, 42.42901,-71.07021 +/-116m); p7__2 (tier 1, 42.41840,-71.07740 +/-109m); p8__2 (tier 1, 42.42890,-71.06831 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p10 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5534.9,7652.0 5415.0,5723.8 5618.1,5712.9 6452.0,3887.9 6452.0,3757.2 4636.0,3762.4 4636.4,0.0 -0.0,-0.0 -0.0,7652.0 5534.9,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4452.0,5672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0750118,42.4272425]}},{"type":"Feature","properties":{"resourceCoords":[2984.0,1348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.076276,42.429107]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p10 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4636.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1816.0"},{"label":"split_canvas_h","value":"3762.4"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4636.4,257.5 4636.0,3762.4 6452.0,3757.2 6452.0,0.0 4734.6,0.0 4735.7,255.9 4636.4,257.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4636.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07400903377511,42.41802223912508]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0717571685772,42.418221526179174]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3762.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07119851722106,42.41478565341699]}},{"type":"Feature","properties":{"resourceCoords":[4636.0,3762.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07345038241898,42.4145863663629]}},{"type":"Feature","properties":{"resourceCoords":[6144.7,155.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0721151,42.4180454]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4505.5 202.5,4507.7 1310.1,2336.2 1316.8,0.0 5209.4,0.0 5215.6,1278.2 6049.0,1276.5 6038.6,6128.0 5777.8,7447.0 4860.9,7316.9 4729.9,7652.0 -0.0,7652.0 -0.0,4505.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07497377007022,42.42931731003201]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07104702674594,42.42990964213]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07010196276235,42.42644787560368]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07402870608662,42.42585554350569]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.4,50.2 6452.0,0.0 6452.0,6880.5 5888.5,7652.0 5189.4,7652.0 2848.8,6222.8 334.0,5373.2 90.4,50.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4076.0,6916.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0683044,42.4266953]}},{"type":"Feature","properties":{"resourceCoords":[336.0,5372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0705418,42.4270994]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2101.8 909.1,1926.3 669.8,591.5 3123.2,594.5 6121.1,1279.8 5689.7,3614.5 5714.8,3876.7 5896.3,3862.6 5938.2,4741.3 6367.8,6220.0 3439.8,7652.0 -0.0,7652.0 -0.0,2101.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07088558808407,42.42741868769083]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.0669719157891,42.4269120776844]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06778017847208,42.42346169791577]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.07169385076705,42.4239683079222]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p5 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0005__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,6877.4 6452.0,-0.0 1684.2,-0.0 769.4,1975.3 121.0,2086.0 185.4,2672.3 592.2,3400.2 337.6,3954.9 767.2,3674.4 1332.7,4540.9 1418.4,4637.7 1476.8,4636.8 1656.8,4907.2 2306.9,5641.8 2414.6,5507.7 3051.7,6049.9 4156.5,6628.4 6008.4,7124.0 6098.5,6779.7 6452.0,6877.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1460.0,4700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0676189,42.4258119]}},{"type":"Feature","properties":{"resourceCoords":[120.0,2088.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0666736,42.4270406]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p6 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5318.4"},{"label":"split_canvas_w","value":"1779.2"},{"label":"split_canvas_h","value":"2333.6"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1770.4,7652.0 1779.2,5320.8 0.0,5318.4 -0.0,7652.0 1770.4,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,5318.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06919873412355,42.42002476145349]}},{"type":"Feature","properties":{"resourceCoords":[1779.2,5318.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06698458458956,42.4201231532379]}},{"type":"Feature","properties":{"resourceCoords":[1779.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06680956155223,42.4179793928551]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.06902371108622,42.41788100107069]}},{"type":"Feature","properties":{"resourceCoords":[1347.4,7280.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0673748,42.4182969]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p6 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4824.0,7652.0 5964.0,7652.0 6452.0,7652.0 6452.0,0.0 -0.0,-0.0 0.0,5318.4 1779.2,5320.8 1770.4,7652.0 4824.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2596.0,4244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.075336,42.421695]}},{"type":"Feature","properties":{"resourceCoords":[848.0,784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0766565,42.4233654]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p7 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0007__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2981.2 3192.8,2948.0 3202.8,0.0 -0.0,0.0 -0.0,7652.0 6452.0,7652.0 6452.0,2981.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4556.0,6264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0776629,42.4176541]}},{"type":"Feature","properties":{"resourceCoords":[4556.0,2956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0756706,42.4176445]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p8 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4640.8"},{"label":"split_canvas_h","value":"3188.8"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,-0.0 0.0,2724.4 4627.2,3188.8 4632.0,2102.0 4640.8,0.0 -0.0,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1072.2,2180.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.057087,42.429648]}},{"type":"Feature","properties":{"resourceCoords":[2720.5,2180.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0561224,42.4299248]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p8 [3]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2097.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5554.4"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2097.6 4632.0,2102.0 4627.2,3188.8 0.0,2724.4 -0.0,7490.6 6200.3,7469.2 5876.8,6933.4 6452.0,6537.6 6452.0,2097.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0008__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[5352.0,5136.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0656294,42.4273962]}},{"type":"Feature","properties":{"resourceCoords":[1096.0,5136.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0660133,42.4293034]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p9 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,4490.0 3203.2,4488.4 3182.0,2943.6 3155.6,851.9 2352.9,759.8 2337.3,920.4 1820.1,877.8 1892.5,0.0 -0.0,-0.0 -0.0,7652.0 6452.0,7652.0 6452.0,4490.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[828.0,2848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0717394,42.4314293]}},{"type":"Feature","properties":{"resourceCoords":[2248.0,5632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0705393,42.4303207]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p9 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"3144.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3307.2"},{"label":"split_canvas_h","value":"2960.4"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,1973.6 6089.3,1978.6 6073.8,89.0 6042.1,244.0 3147.3,196.2 3182.0,2943.6 6452.0,2960.4 6452.0,1973.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3564.7,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0691875,42.4237557]}},{"type":"Feature","properties":{"resourceCoords":[6040.1,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.06768,42.424114]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Malden, Massachusetts | 1887 | sanborn03774_001 p9 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3182.0"},{"label":"split_canvas_y","value":"2943.6"},{"label":"split_canvas_w","value":"3270.0"},{"label":"split_canvas_h","value":"1546.4"}],"created":"2026-09-22T09:06:56Z","modified":"2026-09-22T09:06:56Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3990.1 6296.1,3987.8 6329.1,2959.8 3182.0,2943.6 3203.2,4488.4 6452.0,4490.0 6452.0,3990.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037741887:03774_1887-0009__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4972.9,3987.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.0711841,42.4331135]}},{"type":"Feature","properties":{"resourceCoords":[6296.1,3987.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.071082,42.4324959]}}]}}]}