{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04919_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Wheaton, Missouri | 1923 | 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":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__3 (tier 4, 36.76269,-94.05515 +/-199m); p1__4 (tier 4, 36.76269,-94.05515 +/-199m); p1__5 (tier 4, 36.76269,-94.05515 +/-199m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wheaton, Missouri | 1923 | sanborn04919_001 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.84"},{"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":"1919.2"},{"label":"split_canvas_h","value":"1524.0"}],"created":"2026-10-18T00:57:24Z","modified":"2026-10-18T00:57:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"423.0,46.1 21.1,58.1 27.1,335.8 415.1,339.1 447.2,1.0 426.4,1.0 423.0,46.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.057728328264,36.76356120668005]}},{"type":"Feature","properties":{"resourceCoords":[479.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05662433852532,36.76351861780155]}},{"type":"Feature","properties":{"resourceCoords":[479.8,381.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05666649457908,36.76281591972043]}},{"type":"Feature","properties":{"resourceCoords":[0.0,381.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05777048431776,36.76285850859893]}},{"type":"Feature","properties":{"resourceCoords":[447.8,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.056736,36.762887]}},{"type":"Feature","properties":{"resourceCoords":[447.8,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.056736,36.762887]}},{"type":"Feature","properties":{"resourceCoords":[447.8,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.056736,36.762887]}},{"type":"Feature","properties":{"resourceCoords":[447.8,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.056736,36.762887]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wheaton, Missouri | 1923 | sanborn04919_001 p1 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.81"},{"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":"2026-10-18T00:57:24Z","modified":"2026-10-18T00:57:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"81.5,725.9 49.8,1109.9 81.2,1692.5 255.9,1846.0 1112.1,1853.7 1216.4,1381.2 1226.2,1376.5 1226.2,1364.0 1252.2,1364.0 1266.6,1357.1 1346.5,1364.0 1472.4,1364.0 1481.7,1364.0 1589.6,1321.5 1572.4,1322.2 1521.1,110.2 1431.3,62.8 1266.8,150.2 1256.2,245.7 1099.9,269.3 1036.4,298.1 1036.7,278.9 987.3,286.3 879.0,342.2 879.0,348.4 879.0,369.4 879.0,384.3 879.0,384.3 786.9,389.9 85.9,419.5 60.7,725.8 64.9,725.8 81.5,725.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[528.0,1628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.055759,36.761823]}},{"type":"Feature","properties":{"resourceCoords":[80.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.056736,36.762887]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wheaton, Missouri | 1923 | sanborn04919_001 p1 [6]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.67"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4904.8"},{"label":"split_canvas_y","value":"5456.0"},{"label":"split_canvas_w","value":"1547.2"},{"label":"split_canvas_h","value":"2196.0"}],"created":"2026-10-18T00:57:24Z","modified":"2026-10-18T00:57:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1370.6,1382.3 1238.1,1433.4 1274.8,1436.8 1305.0,1874.4 1466.2,1883.3 1538.8,1456.7 1484.9,1378.2 1370.6,1382.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd416m:g4164m:g4164wm:g4164wm_g049191923:04919_1923-0001__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1226.2,1364.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05361637366806,36.76234864511234]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1364.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05272581286691,36.762323308538285]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05277063466524,36.7613102257259]}},{"type":"Feature","properties":{"resourceCoords":[1226.2,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-94.05366119546639,36.761335562299955]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1692.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-94.052962,36.761724]}}]}}]}