{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09397_010.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clarksburg, West-Virginia | 1955 | key map | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894cm:g3894cm_g093971955:09397_1955-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksburg, West-Virginia | 1955 | sanborn09397_010 p0","metadata":[{"label":"streets","value":"72"},{"label":"intersections","value":"46"}],"created":"2026-09-21T22:09:04Z","modified":"2026-09-21T22:09:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894cm:g3894cm_g093971955:09397_1955-0000/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894cm:g3894cm_g093971955:09397_1955-0000","type":"ImageService3","width":1088,"height":1350},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1350.0 -0.0,0.0 1088.0,0.0 1088.0,1350.0 -0.0,1350.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894cm:g3894cm_g093971955:09397_1955-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[564.8,663.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.3338362,39.2804175]}},{"type":"Feature","properties":{"resourceCoords":[683.8,674.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-80.325852,39.2796442]}}]}}]}