{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05511_029.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Hudson Co., New-Jersey | 1950 | key map | mapsnap generated fit (2026-09-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-24"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814hm:g3814hm_g05511195002:05511_02_1950-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Hudson Co., New-Jersey | 1950 | sanborn05511_029 p0","metadata":[{"label":"streets","value":"64"},{"label":"intersections","value":"159"}],"created":"2026-09-24T16:12:36Z","modified":"2026-09-24T16:12:36Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814hm:g3814hm_g05511195002:05511_02_1950-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814hm:g3814hm_g05511195002:05511_02_1950-0000/info.json","type":"ImageService2","height":8152,"width":5744},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0,8152 0,0 5744,0 5744,8152 0,8152\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814hm:g3814hm_g05511195002:05511_02_1950-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4178.0,7057.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.0352104,40.7193938]}},{"type":"Feature","properties":{"resourceCoords":[2411.0,6539.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.0441937,40.7225256]}}]}}]}