{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn05460_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dover, New-Jersey | 1896 | 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:g3814dm:g3814dm_g054601896:05460_1896-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dover, New-Jersey | 1896 | sanborn05460_004 p0","metadata":[{"label":"streets","value":"37"},{"label":"intersections","value":"72"}],"created":"2026-09-22T23:09:16Z","modified":"2026-09-22T23:09:16Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814dm:g3814dm_g054601896:05460_1896-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814dm:g3814dm_g054601896:05460_1896-0000","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"530.2,1913.0 -0.0,1913.0 0.0,0.0 1613.0,0.0 1613.0,405.1 1613.0,566.5 1613.0,1913.0 1449.9,1913.0 1245.1,1913.0 530.2,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd381m:g3814m:g3814dm:g3814dm_g054601896:05460_1896-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1011.3,1406.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.5555704,40.8844796]}},{"type":"Feature","properties":{"resourceCoords":[1063.8,1342.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.554747,40.885393]}}]}}]}