{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04564_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bertrand, Missouri | 1919 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"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__2 (tier 4, 36.91100,-89.45097 +/-100m); p1__3 (tier 4, 36.91100,-89.45097 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164bm:g4164bm_g045641919:04564_1919-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bertrand, Missouri | 1919 | sanborn04564_003 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.69"},{"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":"2026-10-17T21:21:26Z","modified":"2026-10-17T21:21:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164bm:g4164bm_g045641919:04564_1919-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164bm:g4164bm_g045641919:04564_1919-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1571.5,47.8 48.2,42.8 54.8,1358.4 451.2,1363.9 451.4,1364.5 457.0,1364.5 457.0,1377.0 531.0,1542.8 736.0,1548.0 740.3,1814.6 805.1,1861.0 1576.8,1868.7 1571.5,47.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164bm:g4164bm_g045641919:04564_1919-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[523.0,256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.44944,36.911738]}},{"type":"Feature","properties":{"resourceCoords":[62.0,256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.449612,36.912599]}}]}}]}