{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05447_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clifton, New-Jersey | 1952 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054471952:05447_1952-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clifton, New-Jersey | 1952 | sanborn05447_003 p0","metadata":[{"label":"streets","value":"131"},{"label":"intersections","value":"86"}],"created":"2026-09-21T19:10:59Z","modified":"2026-09-21T19:10:59Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054471952:05447_1952-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054471952:05447_1952-0000/info.json","type":"ImageService2","height":5452,"width":4352},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,5452.0 -0.0,-0.0 4352.0,0.0 4352.0,5452.0 -0.0,5452.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054471952:05447_1952-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3082.4,1419.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.136357,40.887768]}},{"type":"Feature","properties":{"resourceCoords":[2132.0,2309.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.151642,40.864819]}}]}}]}