{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn03303_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Duson, Louisiana | 1919 | 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":"3"},{"label":"placed","value":"1"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 30.23543,-92.18139 +/-100m); p1__2 (tier 4, 30.23543,-92.18139 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033031919:03303_1919-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Duson, Louisiana | 1919 | sanborn03303_001 p1 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4624.8"},{"label":"split_canvas_y","value":"4819.6"},{"label":"split_canvas_w","value":"1827.2"},{"label":"split_canvas_h","value":"2832.4"}],"created":"2026-09-21T08:02:36Z","modified":"2026-09-21T08:02:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033031919:03303_1919-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033031919:03303_1919-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1204.9 1158.4,1209.1 1156.2,1913.0 1613.0,1913.0 1613.0,1204.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd401m:g4014m:g4014dm:g033031919:03303_1919-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1255.2,1385.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.180689,30.235874]}},{"type":"Feature","properties":{"resourceCoords":[1255.2,1846.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-92.182553,30.235886]}}]}}]}