{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn03355_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mangham, Louisiana | 1927 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"4"},{"label":"placed","value":"1"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 32.30927,-91.77579 +/-100m); p1__3 (tier 4, 32.30927,-91.77579 +/-100m); p1__4 (tier 4, 32.30927,-91.77579 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014mm:g033551927:03355_1927-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mangham, Louisiana | 1927 | sanborn03355_002 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.20"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"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":"2026-10-18T07:17:37Z","modified":"2026-10-18T07:17:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014mm:g033551927:03355_1927-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014mm:g033551927:03355_1927-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"941.0,1896.4 1560.5,1875.2 1588.5,556.6 1557.1,241.7 1482.6,107.8 1206.3,99.8 1103.5,351.0 1103.5,381.0 1103.5,395.5 1103.5,395.5 1082.5,402.3 428.3,413.6 388.6,907.5 336.7,970.2 336.7,973.0 334.4,973.0 333.5,974.1 29.2,1049.0 68.7,1087.7 20.1,1161.9 42.7,1852.5 372.6,1900.4 633.4,1836.2 941.0,1896.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014mm:g033551927:03355_1927-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[997.0,1152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.7753235,32.3089327]}},{"type":"Feature","properties":{"resourceCoords":[997.0,1664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.7752309,32.3079601]}}]}}]}