{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01486_002.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Pelham, Georgia | 1913 | 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:gmd392m:g3924m:g3924pm:g01486002:sb000010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Pelham, Georgia | 1913 | sanborn01486_002 p1 [1]","metadata":[{"label":"streets","value":"48"},{"label":"intersections","value":"85"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"9199.0"},{"label":"split_canvas_h","value":"7171.1"}],"created":"2026-09-23T04:09:56Z","modified":"2026-09-23T04:09:56Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924pm:g01486002:sb000010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924pm:g01486002:sb000010","type":"ImageService3","width":2195,"height":2592},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2195,0.0 -0.0,-0.0 0.0,1791.2 1146.7,1792.0 2195,1792.8 2195,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924pm:g01486002:sb000010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[279.8,1247.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.1604457,31.119516]}},{"type":"Feature","properties":{"resourceCoords":[771.0,362.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-84.1513534,31.1338621]}}]}}]}