{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn09756_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Evanston, Wyoming | 1907 | key map | mapsnap generated fit (2026-09-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-24"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd426m:g4264m:g4264em:g097561907:09756_1907-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Evanston, Wyoming | 1907 | sanborn09756_004 p1 [2]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"44"},{"label":"split_canvas_x","value":"3831.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3106.4"},{"label":"split_canvas_h","value":"8129.9"}],"created":"2026-09-24T01:10:44Z","modified":"2026-09-24T01:10:44Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd426m:g4264m:g4264em:g097561907:09756_1907-0001__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd426m:g4264m:g4264em:g097561907:09756_1907-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3831.8,-0.0 3831.8,269.0 3832.5,8129.9 3834.6,8129.9 6938.1,8129.9 6938.1,0.0 3831.8,-0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd426m:g4264m:g4264em:g097561907:09756_1907-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4793.8,3562.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.9596321,41.2606082]}},{"type":"Feature","properties":{"resourceCoords":[4582.9,3001.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-110.963612,41.2619736]}}]}}]}