{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn07202_012.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Oklahoma City, Oklahoma | 1932 | 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://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024om:g4024om_g07202193203:07202_03_1932-0000b/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oklahoma City, Oklahoma | 1932 | sanborn07202_012 p0b","metadata":[{"label":"streets","value":"72"},{"label":"intersections","value":"680"}],"created":"2026-09-22T05:50:39Z","modified":"2026-09-22T05:50:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024om:g4024om_g07202193203:07202_03_1932-0000b/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024om:g4024om_g07202193203:07202_03_1932-0000b","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1920.0 -0.0,-0.0 1589.0,0.0 1589.0,1920.0 -0.0,1920.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd402m:g4024m:g4024om:g4024om_g07202193203:07202_03_1932-0000b/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[993.2,894.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.5125155,35.4217322]}},{"type":"Feature","properties":{"resourceCoords":[842.8,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.5236983,35.4352374]}}]}}]}