{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05487_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Glassboro, New-Jersey | 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:gmd381m:g3814m:g3814gm:g3814gm_g054871910:05487_1910-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Glassboro, New-Jersey | 1910 | sanborn05487_004 p1 [2]","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"25"},{"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":"4065.2"}],"created":"2026-09-22T13:02:44Z","modified":"2026-09-22T13:02:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814gm:g3814gm_g054871910:05487_1910-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814gm:g3814gm_g054871910:05487_1910-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,0.0 0.0,0.0 0.0,1243.3 0.0,4065.2 585.4,3885.5 650.3,3540.5 813.3,3544.8 1266.7,3556.8 6878.4,3699.4 6878.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814gm:g3814gm_g054871910:05487_1910-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1799.1,1524.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.109516,39.705097]}},{"type":"Feature","properties":{"resourceCoords":[958.7,2387.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.1130278,39.6991209]}}]}}]}