{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn03684_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ayer, Massachusetts | 1892 | 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":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__3 (tier 1, 42.56266,-71.58705 +/-100m); p3__1 (tier 4, 42.51870,-71.46679 +/-33024m)"},{"label":"withheld","value":"p1__2 (43.9 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ayer, Massachusetts | 1892 | sanborn03684_002 p1 [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":"2026-09-23T03:44:24Z","modified":"2026-09-23T03:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2740.0,7652.0 3876.0,7652.0 4040.8,7652.0 4050.4,6082.0 6452.0,6070.4 6452.0,2079.6 4014.0,2056.4 4005.0,868.6 1819.2,166.8 1409.1,1331.6 -0.0,1319.1 -0.0,7652.0 2740.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2416.0,5368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.592744,42.559564]}},{"type":"Feature","properties":{"resourceCoords":[784.0,5368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.592753,42.560326]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ayer, Massachusetts | 1892 | sanborn03684_002 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"}],"created":"2026-09-23T03:44:24Z","modified":"2026-09-23T03:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1685.3,0.0 6452.0,0.0 6452.0,7652.0 799.1,7652.0 569.6,5866.1 532.6,464.0 1685.3,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[556.0,3824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.5881736,42.5595415]}},{"type":"Feature","properties":{"resourceCoords":[556.0,2624.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.588892,42.559727]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ayer, Massachusetts | 1892 | sanborn03684_002 p3 [2]","metadata":[{"label":"streets","value":"5"},{"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":"2026-09-23T03:44:24Z","modified":"2026-09-23T03:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0003__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7353.3 6452.0,5094.0 6286.4,4122.5 6418.7,0.0 5760.0,0.0 5210.4,0.0 0.0,0.0 0.0,4272.8 2351.2,4278.8 2359.2,7652.0 3580.0,7652.0 4668.0,7652.0 6275.2,7652.0 6452.0,7353.3\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd376m:g3764m:g3764am:g036841892:03684_1892-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3116.0,5264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.58685,42.557636]}},{"type":"Feature","properties":{"resourceCoords":[3292.0,3788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-71.587722,42.557923]}}]}}]}