{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03689_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Belchertown, Massachusetts | 1933 | 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":"5"},{"label":"placed","value":"3"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.27796,-72.40141 +/-614m); p2__2 (tier 4, 42.27796,-72.40141 +/-614m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belchertown, Massachusetts | 1933 | sanborn03689_007 p1 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2021.6"},{"label":"split_canvas_w","value":"3295.2"},{"label":"split_canvas_h","value":"5630.4"}],"created":"2026-09-22T02:39:51Z","modified":"2026-09-22T02:39:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3295.2,7652.0 3270.8,3110.0 3264.8,2022.0 0.0,2021.6 -0.0,7324.5 787.4,7626.4 3295.2,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,2021.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.40896164985834,42.28397205661288]}},{"type":"Feature","properties":{"resourceCoords":[3295.2,2021.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.40539679188544,42.285539480697146]}},{"type":"Feature","properties":{"resourceCoords":[3295.2,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.40177453060394,42.28103546536731]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.40533938857685,42.279468041283046]}},{"type":"Feature","properties":{"resourceCoords":[1611.6,7472.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.403712,42.280379]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belchertown, Massachusetts | 1933 | sanborn03689_007 p1 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3270.8"},{"label":"split_canvas_y","value":"3101.2"},{"label":"split_canvas_w","value":"3181.2"},{"label":"split_canvas_h","value":"4550.8"}],"created":"2026-09-22T02:39:51Z","modified":"2026-09-22T02:39:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,3101.2 3270.8,3110.0 3295.2,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[3270.8,3101.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.40097507408514,42.2738193099298]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,3101.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.39799403052312,42.275798669644765]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.39416691355032,42.27264744255116]}},{"type":"Feature","properties":{"resourceCoords":[3270.8,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.39714795711234,42.270668082836195]}},{"type":"Feature","properties":{"resourceCoords":[4769.5,4696.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.3982282,42.2736464]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Belchertown, Massachusetts | 1933 | sanborn03689_007 p2 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"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":"2026-09-22T02:39:51Z","modified":"2026-09-22T02:39:51Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1230.3,0.0 -0.0,-0.0 -0.0,7652.0 2491.8,7652.0 4144.9,7345.5 4201.7,7652.0 4364.0,7652.0 4550.8,7652.0 4578.0,5914.0 6452.0,5921.2 6452.0,0.0 4526.6,0.0 4515.0,976.2 2008.1,920.8 1223.1,609.5 1230.3,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764bm:g036891933:03689_1933-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2808.0,1216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.403451,42.280018]}},{"type":"Feature","properties":{"resourceCoords":[2780.0,5156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.4008958,42.276875]}}]}}]}