{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05446_001.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clementon, New-Jersey | 1919 | 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:g3814cm:g3814cm_g054461919:05446_1919-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clementon, New-Jersey | 1919 | sanborn05446_001 p1 [2]","metadata":[{"label":"streets","value":"39"},{"label":"intersections","value":"36"},{"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":"5842.1"}],"created":"2026-09-22T13:05:11Z","modified":"2026-09-22T13:05:11Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054461919:05446_1919-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054461919:05446_1919-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,5842.1 6878.4,0.0 -0.0,-0.0 0.0,4515.6 1673.3,5278.6 3206.5,4758.2 4230.8,4760.6 4224.4,5837.9 6861.4,5842.1 6878.4,5842.1\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd381m:g3814m:g3814cm:g3814cm_g054461919:05446_1919-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1571.9,2107.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.994907,39.803021]}},{"type":"Feature","properties":{"resourceCoords":[4147.3,2368.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-74.9733998,39.8012213]}}]}}]}