{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03815_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Norton, Massachusetts | 1937 | 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":"17"},{"label":"placed","value":"6"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef 5, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"6 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 41.96358,-71.19704 +/-4830m); p1__2 (tier 4, 41.96358,-71.19704 +/-4830m); p2__2 (tier 1, 41.97608,-71.18462 +/-289m); p3__2 (tier 1, 42.03058,-71.22074 +/-374m); p3__3 (tier 1, 41.96976,-71.18071 +/-294m); p4__1 (tier 4, 41.96358,-71.19704 +/-4830m); p4__2 (tier 1, 41.95934,-71.20531 +/-540m); p6__1 (tier 4, 41.96358,-71.19704 +/-4830m); p6__2 (tier 4, 41.96358,-71.19704 +/-4830m); p6__3 (tier 4, 41.96358,-71.19704 +/-4830m); p6__5 (tier 4, 41.96358,-71.19704 +/-4830m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6093.5,1442.5 6063.6,-0.0 -0.0,-0.0 0.0,2145.6 3417.2,2139.6 3412.4,5154.4 0.0,5160.0 -0.0,7652.0 3184.0,7652.0 4032.0,7652.0 6375.3,7652.0 5657.5,5242.5 6093.5,1442.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6104.0,6748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.188157,41.966758]}},{"type":"Feature","properties":{"resourceCoords":[6104.0,1032.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.182145,41.9695329]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p3 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4691.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1269.4,7512.3 4691.2,7652.0 3932.0,4221.2 3791.6,3820.0 3699.6,3556.8 3034.4,2288.4 3025.6,0.0 168.7,-0.0 367.5,1538.8 301.0,5127.1 1269.4,7512.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[915.8,6664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.188157,41.966758]}},{"type":"Feature","properties":{"resourceCoords":[335.9,1140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.182145,41.9695329]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0005/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0005/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 -0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.23570715723368,41.95592526589975]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.2275607147295,41.96016385753299]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.22084852268958,41.95292806001944]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.22899496519375,41.9486894683862]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0006__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p6 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"4757.6"},{"label":"split_canvas_y","value":"3484.4"},{"label":"split_canvas_w","value":"1694.4"},{"label":"split_canvas_h","value":"1264.8"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0006__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0006/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,3484.4 4757.6,3484.8 4760.8,4749.2 5360.0,4747.6 6452.0,4746.0 6452.0,3484.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0006__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[4757.6,3484.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16410041723987,41.998534800410894]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3484.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16268115945569,41.9996866006812]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,4749.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16152947451984,41.998898199571705]}},{"type":"Feature","properties":{"resourceCoords":[4757.6,4749.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.16294873230402,41.9977463993014]}},{"type":"Feature","properties":{"resourceCoords":[5820.6,3844.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.1628802,41.9990316]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p7 [1]","metadata":[{"label":"streets","value":"1"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2607.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 -0.0,7652.0 1346.0,7652.0 2423.2,3033.2 2607.2,968.4 2606.0,0.0 -0.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__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":[-71.21357671317432,41.94879767321419]}},{"type":"Feature","properties":{"resourceCoords":[2607.2,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.21300898367846,41.9464303721212]}},{"type":"Feature","properties":{"resourceCoords":[2607.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.22232770141186,41.94518879543683]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-71.22289543090771,41.947556096529816]}},{"type":"Feature","properties":{"resourceCoords":[867.7,-1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.211855,41.948214]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norton, Massachusetts | 1937 | sanborn03815_001 p7 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"1346.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5106.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T17:41:43Z","modified":"2026-09-23T17:41:43Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,0.0 2676.0,0.0 2606.0,0.0 2607.2,968.4 2423.2,3033.2 1346.0,7652.0 6452.0,7652.0 6452.0,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764nm:g038151937:03815_1937-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2281.6,7300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.202226,41.940696]}},{"type":"Feature","properties":{"resourceCoords":[2873.4,4576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.2029257,41.9431832]}}]}}]}