{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01709_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Ashland, Illinois | 1909 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"8"},{"label":"placed","value":"5"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 4, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 39.88865,-90.01093 +/-344m); p1__3 (tier 4, 39.88865,-90.01093 +/-344m); p2__1 (tier 1, 39.89204,-90.01657 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashland, Illinois | 1909 | sanborn01709_003 p1 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3000.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4651.6"}],"created":"2026-10-22T13:39:32Z","modified":"2026-10-22T13:39:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.7,1017.3 110.7,1017.2 74.6,1800.4 91.7,1801.8 533.6,1809.4 988.0,1814.0 1549.3,1808.8 1568.8,1793.8 1556.7,1176.1 1422.5,1124.5 1038.9,1126.2 1037.8,1121.5 1037.0,1121.5 1037.0,1121.5 1037.0,1117.6 965.5,791.3 845.0,768.3 99.0,786.1 95.7,1017.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[553.0,860.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.008302,39.891336]}},{"type":"Feature","properties":{"resourceCoords":[988.0,1814.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.007192,39.889536]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashland, Illinois | 1909 | sanborn01709_003 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"2026-10-22T13:39:32Z","modified":"2026-10-22T13:39:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"16.2,1179.1 38.1,1178.8 50.0,1456.9 441.6,1503.0 442.0,1504.5 443.0,1504.5 443.0,1508.0 531.5,1831.7 716.3,1890.3 1557.7,1861.9 1585.0,343.8 1509.1,73.0 1489.0,72.7 925.8,81.0 469.8,79.0 26.1,73.8 27.0,293.7 13.1,649.8 11.2,765.5 16.2,1179.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.00721148864051,39.88780052149931]}},{"type":"Feature","properties":{"resourceCoords":[33.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0093841502406,39.888656799334754]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashland, Illinois | 1909 | sanborn01709_003 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:39:32Z","modified":"2026-10-22T13:39:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.2,1667.6 139.1,1912.0 197.4,1805.6 526.7,1868.5 1468.7,1866.8 1468.5,1458.8 1471.7,1344.7 1489.5,993.6 1491.1,776.7 1474.3,775.2 1514.6,1.0 1499.8,1.0 1498.3,73.4 1309.5,20.4 395.2,16.1 83.0,75.9 63.1,91.8 91.6,92.5 194.9,291.4 167.5,291.8 164.8,346.5 149.1,1209.7 140.9,1431.5 145.2,1667.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[603.0,765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0116315,39.8895232]}},{"type":"Feature","properties":{"resourceCoords":[1478.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.009421,39.888669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashland, Illinois | 1909 | sanborn01709_003 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.38"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4552.0"},{"label":"split_canvas_w","value":"3690.0"},{"label":"split_canvas_h","value":"3100.0"}],"created":"2026-10-22T13:39:32Z","modified":"2026-10-22T13:39:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"373.7,1138.0 374.1,1156.8 14.8,1175.2 25.0,1906.5 896.3,1910.2 905.7,1272.1 912.6,1237.7 489.6,1202.2 491.4,1138.0 373.7,1138.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.5,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0127317,39.8860421]}},{"type":"Feature","properties":{"resourceCoords":[72.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.014948,39.8860348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Ashland, Illinois | 1909 | sanborn01709_003 p4 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.95"},{"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":"2026-10-22T13:39:32Z","modified":"2026-10-22T13:39:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1069.9,1748.9 1068.7,1818.5 1527.4,1851.8 1527.0,1612.0 1516.0,1370.3 1518.3,1142.8 1510.5,258.1 1511.7,202.0 1539.8,200.8 1429.0,1.0 1399.3,1.0 1399.5,38.1 66.5,47.2 66.7,1135.3 333.1,1138.0 922.5,1138.0 924.5,1151.1 942.4,1750.3 1069.9,1748.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104am:g017091909:01709_1909-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[614.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0149423,39.8895195]}},{"type":"Feature","properties":{"resourceCoords":[1527.0,1612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.0127303,39.8877743]}}]}}]}