{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09755_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Douglas, Wyoming | 1920 | 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:gmd426m:g4264m:g4264dm:g097551920:09755_1920-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Douglas, Wyoming | 1920 | sanborn09755_005 p1 [2]","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"45"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6938.1"},{"label":"split_canvas_h","value":"2984.1"}],"created":"2026-09-22T18:36:30Z","modified":"2026-09-22T18:36:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264dm:g097551920:09755_1920-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264dm:g097551920:09755_1920-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,0.0 0.0,730.0 1628,746.0 1628,-0.0 0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264dm:g097551920:09755_1920-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[427.1,274.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.3812915,42.7595053]}},{"type":"Feature","properties":{"resourceCoords":[660.0,195.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-105.3785052,42.7539802]}}]}}]}