{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05596_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Penns Grove, New-Jersey | 1902 | 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:g3814pm:g3814pm_g055961902:05596_1902-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Penns Grove, New-Jersey | 1902 | sanborn05596_002 p1 [1]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"32"},{"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":"4011.0"}],"created":"2026-09-22T12:12:18Z","modified":"2026-09-22T12:12:18Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961902:05596_1902-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961902:05596_1902-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,-0.0 5484.0,0.0 4528.8,0.0 -0.0,-0.0 -0.0,4011.0 8.7,4011.0 4852.7,3983.9 6878.4,4005.4 6878.4,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961902:05596_1902-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1488.7,1014.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.471423,39.732876]}},{"type":"Feature","properties":{"resourceCoords":[1488.7,1224.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472298,39.731936]}}]}}]}