{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09751_005.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cheyenne, Wyoming | 1907 | 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://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264cm:g097511907:09751_1907-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cheyenne, Wyoming | 1907 | sanborn09751_005 p1","metadata":[{"label":"streets","value":"38"},{"label":"intersections","value":"274"}],"created":"2026-09-23T08:52:31Z","modified":"2026-09-23T08:52:31Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264cm:g097511907:09751_1907-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264cm:g097511907:09751_1907-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 -0.0,-0.0 1628.0,0.0 1628.0,996.3 1628.0,1927.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd426m:g4264m:g4264cm:g097511907:09751_1907-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[581.2,957.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.80906,41.1273841]}},{"type":"Feature","properties":{"resourceCoords":[498.6,1043.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-104.8101105,41.124774]}}]}}]}