{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08123_007.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Camden, South-Carolina | 1923 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081231923:08123_1923-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Camden, South-Carolina | 1923 | sanborn08123_007 p1 [2]","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"54"},{"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":"4399.5"}],"created":"2026-09-23T00:33:00Z","modified":"2026-09-23T00:33:00Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081231923:08123_1923-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081231923:08123_1923-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.7,4399.5 4612.5,4398.6 4897.7,3989.9 6878.4,3997.5 6878.4,0.0 0.0,0.0 -0.0,4399.5 255.7,4399.5\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd391m:g3914m:g3914cm:g3914cm_g081231923:08123_1923-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2231.0,3346.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.5982571,34.2401475]}},{"type":"Feature","properties":{"resourceCoords":[1013.1,1631.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.6119612,34.2543811]}}]}}]}