{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn09378_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Winthrop, Washington | 1909 | 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"},{"label":"pages","value":"2"},{"label":"placed","value":"1"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 48.47853,-120.18476 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284wm:g4284wm_g093781909:09378_1909-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Winthrop, Washington | 1909 | sanborn09378_001 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-21T04:10:29Z","modified":"2026-09-21T04:10:29Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284wm:g4284wm_g093781909:09378_1909-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284wm:g4284wm_g093781909:09378_1909-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1790.0 1613.0,1145.1 1613.0,1104.5 1613.0,1052.4 1613.0,617.3 1613.0,0.0 1512.3,0.0 1320.2,0.0 580.1,0.0 532.6,0.0 495.0,112.5 375.8,200.0 262.7,316.7 150.9,415.0 0.0,503.6 0.0,1034.8 0.0,1493.1 0.0,1913.0 158.1,1913.0 1613.0,1913.0 1613.0,1790.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd428m:g4284m:g4284wm:g4284wm_g093781909:09378_1909-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[752.0,1034.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-120.1846667,48.4784115]}},{"type":"Feature","properties":{"resourceCoords":[1729.0,1191.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-120.183348,48.4795457]}}]}}]}