{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09613_003.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Medford, Wisconsin | 1913 | 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:gmd412m:g4124m:g4124mm:g096131913:09613_1913-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Medford, Wisconsin | 1913 | sanborn09613_003 p1 [2]","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"28"},{"label":"split_canvas_x","value":"3543.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3290.8"},{"label":"split_canvas_h","value":"5471.6"}],"created":"2026-09-22T00:34:33Z","modified":"2026-09-22T00:34:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124mm:g096131913:09613_1913-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124mm:g096131913:09613_1913-0001","type":"ImageService3","width":1602,"height":1887},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"887.0,1367.9 1602,1362.3 1602,0.0 886.0,0.0 886.1,1367.9 887.0,1367.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd412m:g4124m:g4124mm:g096131913:09613_1913-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1208.8,463.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.341874,45.13818]}},{"type":"Feature","properties":{"resourceCoords":[1208.8,234.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3449331,45.142504]}}]}}]}