{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06676_004.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Delta, Ohio | 1910 | key map | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084dm:g4084dm_g066761910:06676_1910-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Delta, Ohio | 1910 | sanborn06676_004 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"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":"6928.4"}],"created":"2026-10-19T06:31:44Z","modified":"2026-10-19T06:31:44Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084dm:g4084dm_g066761910:06676_1910-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084dm:g4084dm_g066761910:06676_1910-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613,0.0 0.0,0.0 0.0,718.0 0.0,1142.8 828.9,1142.8 828.9,1601.2 997.3,1601.2 1283.8,1601.2 1479.7,1727.9 1613,1732.1 1613,674.2 1613,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084dm:g4084dm_g066761910:06676_1910-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[634.5,372.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-83.999538,41.5739916]}},{"type":"Feature","properties":{"resourceCoords":[160.2,272.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.0103909,41.5755827]}}]}}]}