{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09427_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Morgantown, West-Virginia | 1921 | 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:gmd389m:g3894m:g3894mm:g3894mm_g094271921:09427_1921-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Morgantown, West-Virginia | 1921 | sanborn09427_006 p1 [1]","metadata":[{"label":"streets","value":"131"},{"label":"intersections","value":"177"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6878.4"},{"label":"split_canvas_h","value":"8074.1"}],"created":"2026-09-22T12:12:29Z","modified":"2026-09-22T12:12:29Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894mm:g3894mm_g094271921:09427_1921-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894mm:g3894mm_g094271921:09427_1921-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1355.5,1913 1359.2,1339.2 1613,1346.4 1613,0.0 -0.0,0.0 -0.0,1913 1355.5,1913\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894mm:g3894mm_g094271921:09427_1921-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.4,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.9545651,39.6219472]}},{"type":"Feature","properties":{"resourceCoords":[959.8,824.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.9517606,39.6331177]}}]}}]}