{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03777_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marblehead, Massachusetts | 1901 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"27"},{"label":"placed","value":"16"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef 8, georef-snap 5, snap:0 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p10__3 (tier 1, 42.50931,-70.85005 +/-109m); p10__4 (tier 1, 42.49665,-70.85430 +/-100m); p11__3 (tier 1, 42.50582,-70.85283 +/-100m); p11__4 (tier 1, 42.50602,-70.85455 +/-100m); p12__2 (tier 1, 42.49912,-70.85973 +/-111m); p12__4 (tier 1, 42.50088,-70.86166 +/-149m); p12__5 (tier 1, 42.50111,-70.86026 +/-100m); p12__6 (tier 1, 42.50075,-70.86160 +/-100m); p1__1 (tier 1, 42.50433,-70.86039 +/-129m); p1__2 (tier 1, 42.50360,-70.86172 +/-100m); p6__2 (tier 1, 42.50410,-70.86148 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p10 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"15"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3086.8"},{"label":"split_canvas_h","value":"5996.4"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2652.2,-0.0 -0.0,0.0 0.0,5935.2 1216.8,5959.8 1099.3,5303.5 3038.1,4647.2 3073.6,1258.4 2652.2,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1019.6,3824.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.850129,42.508758]}},{"type":"Feature","properties":{"resourceCoords":[1187.5,2624.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.849511,42.508985]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p10 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"3024.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3428.0"},{"label":"split_canvas_h","value":"6319.2"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3086.8,0.0 3024.0,5996.4 3811.2,6013.6 3808.4,6284.8 6452.0,6319.2 6394.0,985.2 6452.0,2.2 3086.8,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3191.8,1139.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.8568291,42.498079]}},{"type":"Feature","properties":{"resourceCoords":[6016.5,5695.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.853477,42.497718]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p11 [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":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3890.1,1130.5 2532.9,113.5 2415.9,871.6 1099.8,875.7 -0.0,455.3 0.0,3893.2 1340.8,3893.2 1340.8,5322.8 2402.4,5310.0 2402.4,7652.0 6452.0,7652.0 6452.0,5144.4 4068.0,5141.2 4046.8,1348.5 3890.1,1130.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2532.0,112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.8519701,42.5062198]}},{"type":"Feature","properties":{"resourceCoords":[3248.0,4408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.855008,42.506348]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p11 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4039.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2412.8"},{"label":"split_canvas_h","value":"5144.4"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6372.3,3873.3 6452.0,0.0 5471.2,0.0 5393.9,693.2 4046.1,1235.3 4058.2,3388.4 5383.9,3307.0 5596.6,3660.6 6372.3,3873.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4039.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85583108322965,42.50533439657716]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85459623751485,42.504703490582564]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,5144.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85640555914205,42.502751536314854]}},{"type":"Feature","properties":{"resourceCoords":[4039.2,5144.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85764040485685,42.50338244230945]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1494.8"},{"label":"split_canvas_h","value":"2761.6"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"632.5,-0.0 598.8,1577.4 -0.0,1530.4 0.0,2761.6 1494.8,2732.8 1462.0,0.0 632.5,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85919569676044,42.49910332802063]}},{"type":"Feature","properties":{"resourceCoords":[1494.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85845665244706,42.49868060171881]}},{"type":"Feature","properties":{"resourceCoords":[1494.8,2761.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85950702172299,42.497668223676385]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2761.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.86024606603637,42.4980909499782]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p12 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"4898.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1553.2"},{"label":"split_canvas_h","value":"2656.4"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5986.7,818.1 6246.9,727.9 6121.1,0.0 4898.8,-0.0 4907.5,2129.7 6241.7,2070.4 5986.7,818.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4898.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8604554302093,42.49899680964979]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85982463443757,42.49951531643669]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,2656.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85863262917034,42.498715846751466]}},{"type":"Feature","properties":{"resourceCoords":[4898.8,2656.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85926342494207,42.49819733996456]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__7/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p12 [7]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"1864.4"},{"label":"split_canvas_y","value":"5225.2"},{"label":"split_canvas_w","value":"4587.6"},{"label":"split_canvas_h","value":"2426.8"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__7/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2744.0,7652.0 3384.0,7652.0 6452.0,7652.0 6452.0,5225.2 5211.2,5226.8 1864.4,5232.0 1875.2,7652.0 2744.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0012__7/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4956.1,7284.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.838098,42.49913]}},{"type":"Feature","properties":{"resourceCoords":[6160.0,7284.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.837566,42.499516]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p2","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"11"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"880.7,6177.2 933.7,5528.1 267.4,5300.8 483.1,2707.4 0.0,2785.7 0.0,-0.0 1235.5,0.0 1496.4,131.5 1554.0,0.0 3411.0,0.0 3829.7,1293.5 3601.2,1560.3 3854.1,1909.1 4583.8,2325.2 4853.4,2824.9 5615.4,2502.7 5779.3,3276.0 6452.0,3797.8 6452.0,7652.0 760.2,7652.0 836.7,6715.3 591.6,6667.1 880.7,6177.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[492.0,3604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.847581,42.5063]}},{"type":"Feature","properties":{"resourceCoords":[268.0,5300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.846754,42.505778]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0003/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"178.7,3924.8 587.6,1708.9 403.4,690.8 3057.1,694.8 3237.6,0.0 4005.6,0.0 4422.0,252.7 4452.3,0.0 6452.0,0.0 6452.0,7652.0 4033.9,7652.0 3606.5,6064.6 3016.7,6223.4 2874.9,6577.7 709.9,7565.9 554.2,6886.4 330.6,6946.6 521.8,6761.6 165.5,4806.7 178.7,3924.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84799933264614,42.50689255144109]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8448155038714,42.50507751574361]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84771493702169,42.50227412923009]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85089876579643,42.50408916492757]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0004/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0004/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1509.4,4723.5 703.8,4941.2 128.0,3639.1 -0.0,551.5 189.9,615.8 274.8,0.0 3313.6,0.0 3376.1,1232.0 6129.7,1080.3 6150.1,1867.7 5746.7,3716.0 5718.7,4570.3 6030.2,6470.4 5841.8,6646.3 3971.0,7114.4 3561.4,7652.0 412.2,7652.0 1086.3,6515.7 1509.4,4723.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85094520377385,42.50845776567905]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84761505254872,42.50662837242284]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85053749053272,42.50369621737909]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85386764175784,42.505525610635296]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2402.0 6452.0,4568.9 5772.6,4543.4 6154.3,6832.9 6452.0,7056.2 6452.0,7652.0 0.0,7652.0 0.0,5506.1 145.8,5497.2 921.0,2478.6 637.7,2804.2 1671.3,0.0 6452.0,0.0 6027.1,1870.7 6452.0,2402.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85460052817191,42.502216075806075]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85302877722532,42.50504012389561]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84851761605161,42.50365614750991]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8500893669982,42.50083209942037]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p6 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"},{"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":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0006__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"5809.7,4184.5 5932.0,882.5 5731.2,525.8 4400.9,563.4 4415.9,0.0 -0.0,-0.0 -0.0,7652.0 4104.6,7652.0 6368.5,4151.9 5809.7,4184.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1940.0,7244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.860608,42.502061]}},{"type":"Feature","properties":{"resourceCoords":[5932.0,884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.8563215,42.5035382]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0007/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.9,5141.6 547.0,3950.7 -0.0,3669.3 57.6,360.3 2003.0,1252.0 1878.0,713.2 5107.4,302.2 5005.6,1159.0 6452.0,911.3 6422.7,6609.2 5162.6,6678.7 4558.2,6320.3 1723.9,6659.4 1264.0,6933.6 -0.0,7134.2 106.9,5141.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85865509561002,42.50185169187375]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85588662618106,42.504103796182875]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85228916075528,42.501666025722294]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85505763018423,42.49941392141317]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0008/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0008/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7571.1 -0.0,6787.2 382.3,6858.7 261.0,5288.8 -0.0,4976.4 -0.0,2078.1 261.1,1893.9 435.6,1277.8 480.3,199.3 82.9,-0.0 3293.1,0.0 3339.4,143.1 3896.7,0.0 6452.0,0.0 6452.0,4381.9 6452.0,4381.9 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85295597462928,42.50219377621686]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8497589667469,42.500414505444475]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85260105288721,42.497599302420376]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.85579806076959,42.499378573192764]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p9 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"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":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6346.3,5333.8 5820.5,5088.2 5805.7,1787.7 3975.6,1085.2 3771.4,0.0 3068.4,0.0 2012.0,4015.6 716.6,4033.6 747.0,4189.3 503.3,4281.0 768.3,5452.9 1029.4,5414.9 1112.2,6248.0 -0.0,6366.3 -0.0,7652.0 5855.4,7652.0 5928.4,6523.4 6346.3,5333.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3240.0,6888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.8572121,42.4992051]}},{"type":"Feature","properties":{"resourceCoords":[3052.0,748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.860169,42.501148]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marblehead, Massachusetts | 1901 | sanborn03777_004 p9 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3068.4"},{"label":"split_canvas_h","value":"4043.6"}],"created":"2026-09-23T17:35:11Z","modified":"2026-09-23T17:35:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2512.2,2114.1 3068.4,0.0 0.0,-0.0 -0.0,4043.6 2512.2,2114.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764mm:g037771901:03777_1901-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84594073675429,42.51093748846155]}},{"type":"Feature","properties":{"resourceCoords":[3068.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.84283361375378,42.509227596654675]}},{"type":"Feature","properties":{"resourceCoords":[3068.4,4043.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8458976251969,42.506214949444015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,4043.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-70.8490047481974,42.50792484125089]}},{"type":"Feature","properties":{"resourceCoords":[536.1,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-70.8457,42.51034]}}]}}]}