{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn07162_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mcalester, Oklahoma | 1908 | 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:gmd402m:g4024m:g4024mm:g4024mm_g071621908:07162_1908-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mcalester, Oklahoma | 1908 | sanborn07162_005 p1 [1]","metadata":[{"label":"streets","value":"35"},{"label":"intersections","value":"152"},{"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":"5735.8"}],"created":"2026-09-23T21:37:40Z","modified":"2026-09-23T21:37:40Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071621908:07162_1908-0001__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071621908:07162_1908-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6878.4,-0.0 -0.0,-0.0 0.0,5735.8 5408.7,5735.8 6623.2,5713.5 6878.4,5713.5 6878.4,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd402m:g4024m:g4024mm:g4024mm_g071621908:07162_1908-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2802.6,1813.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7634134,34.930616]}},{"type":"Feature","properties":{"resourceCoords":[1794.8,1285.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7691671,34.9357463]}}]}}]}