{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08125_008.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cheraw, South-Carolina | 1923 | 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:gmd391m:g3914m:g3914cm:g3914cm_g081251923:08125_1923-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cheraw, South-Carolina | 1923 | sanborn08125_008 p1 [1]","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"25"},{"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":"4973.0"}],"created":"2026-09-22T13:58:44Z","modified":"2026-09-22T13:58:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081251923:08125_1923-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081251923:08125_1923-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,0.0 -0.0,0.0 0.0,4973.0 5268.6,4964.6 5319.1,4964.5 5441.8,3197.0 6878.4,3158.9 6878.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081251923:08125_1923-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2220.3,1389.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.8892298,34.694363]}},{"type":"Feature","properties":{"resourceCoords":[1282.9,1389.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.8973606,34.690095]}}]}}]}