{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05755_001.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Baldwin, New-York | 1910 | key map | 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"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057551910:05755_1910-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Baldwin, New-York | 1910 | sanborn05755_001 p1 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"23"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-22T12:37:52Z","modified":"2026-09-22T12:37:52Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057551910:05755_1910-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057551910:05755_1910-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4161.5,8074.1 4161.5,7584.2 4197.8,2283.6 6878.4,2281.5 6878.4,0.0 0.0,-0.0 -0.0,8074.1 4161.5,8074.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd380m:g3804m:g3804bm:g3804bm_g057551910:05755_1910-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1360.8,3610.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.6104897,40.644981]}},{"type":"Feature","properties":{"resourceCoords":[1478.1,2427.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.608893,40.65106]}}]}}]}