{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03591_006.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Crisfield, Maryland | 1917 | key map | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g03591006:sb000010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crisfield, Maryland | 1917 | sanborn03591_006 p1 [2]","metadata":[{"label":"streets","value":"34"},{"label":"intersections","value":"65"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"8999.6"},{"label":"split_canvas_h","value":"10624.3"}],"created":"2026-09-23T06:04:36Z","modified":"2026-09-23T06:04:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g03591006:sb000010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g03591006:sb000010","type":"ImageService3","width":2145,"height":2552},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2145,-0.0 0.0,-0.0 0.0,1596.8 402.9,1842.2 1303.7,1818.8 1320.8,2552 2145,2552 2145,-0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd384m:g3844m:g3844cm:g03591006:sb000010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[584.2,1358.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8572463,37.9798812]}},{"type":"Feature","properties":{"resourceCoords":[539.4,919.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.8509917,37.9827601]}}]}}]}