{"id":"https://data.mapsnap.org/runs/v1.3/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 (2026-09-21)","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: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":"6922.0"}],"created":"2026-09-21T21:52:14Z","modified":"2026-09-21T21:52:14Z","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=\"0.0,717.2 0.0,1140.5 825.2,1142.7 828.3,1601.9 998.3,1601.1 1285.2,1599.7 1480.6,1727.8 1613,1730.5 1613,1730.5 1613,0.0 1349.2,0.0 1158.8,0.0 946.3,0.0 0.0,-0.0 0.0,717.2\" /></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":[634.5,372.4],"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]}}]}}]}