{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05596_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Penns Grove, New-Jersey | 1909 | 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://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961909:05596_1909-0001__2/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 | 1909 | sanborn05596_003 p1 [2]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"29"},{"label":"split_canvas_x","value":"1586.3"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5292.1"},{"label":"split_canvas_h","value":"4891.8"}],"created":"2026-09-22T14:06:37Z","modified":"2026-09-22T14:06:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961909:05596_1909-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961909:05596_1909-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,0.0 1354.0,0.0 1161.0,0.0 404.9,0.0 396.6,885.1 396.6,885.4 685.5,1223.0 1345.0,1220.7 1346.6,453.0 1613,445.2 1613,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814pm:g3814pm_g055961909:05596_1909-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[731.6,299.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470937,39.735088]}},{"type":"Feature","properties":{"resourceCoords":[803.4,596.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.468966,39.728676]}}]}}]}