{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02865_009.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Webster City, Iowa | 1950 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"21"},{"label":"placed","value":"15"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 12, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p10__1 (tier 2, 42.47116,-93.82846 +/-399m); p11__2 (tier 1, 42.46456,-93.80674 +/-100m); p13__2 (tier 1, 42.46619,-93.83464 +/-132m); p13__5 (tier 1, 42.46674,-93.83990 +/-100m); p13__6 (tier 1, 42.46440,-93.83276 +/-100m); p13__7 (tier 1, 42.46334,-93.83040 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p10 [2]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"18"},{"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":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1135.8,1855.4 1288.8,1566.2 1467.4,1565.5 1502.3,1565.4 1474.2,1112.8 1487.2,1112.7 1474.8,656.0 1480.5,655.9 1460.1,167.7 820.4,137.2 186.6,148.4 186.2,127.8 15.6,199.9 72.8,213.0 84.5,252.8 89.6,1091.8 137.6,1130.8 482.8,1138.8 484.8,1814.3 678.4,1868.8 1135.7,1849.2 1135.8,1855.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[403.0,340.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8246714,42.4738541]}},{"type":"Feature","properties":{"resourceCoords":[1234.0,1115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8286528,42.4708232]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p11 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.23"},{"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":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1507.2,1771.6 1534.8,1333.5 1516.6,1333.7 1512.7,463.3 1525.6,463.1 1541.6,210.0 1444.1,211.8 1392.9,211.8 1392.5,200.4 1091.3,89.3 1091.0,62.9 724.8,67.9 693.2,148.2 694.8,529.2 653.0,660.4 563.6,756.0 525.1,766.1 524.0,767.5 520.0,767.5 491.3,775.1 491.7,804.1 219.9,836.9 147.8,866.9 98.0,947.4 108.3,1433.5 81.1,1836.7 82.3,1837.0 253.1,1765.9 253.4,1786.5 886.6,1778.8 886.8,1778.8 1612.0,1817.3 1612.0,1770.0 1507.2,1771.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[381.0,1785.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8236872,42.4741697]}},{"type":"Feature","properties":{"resourceCoords":[1395.0,465.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8171051,42.470334]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p12","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.9,1069.6 122.0,1775.7 368.5,1778.2 368.6,1793.2 659.0,1846.0 659.0,1832.2 736.0,1882.5 736.6,1864.4 1293.8,1874.9 1294.2,1912.0 1318.6,1912.0 1321.7,1912.0 1415.2,1456.0 1397.6,1456.4 1366.4,555.0 1420.2,555.5 1590.5,363.6 1540.0,79.4 1303.2,35.9 276.4,22.2 276.4,1.0 249.5,1.0 134.5,300.8 123.0,301.0 122.4,352.4 123.7,556.1 122.9,1069.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[368.0,1634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8146042,42.4653902]}},{"type":"Feature","properties":{"resourceCoords":[123.0,301.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8158293,42.470329]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p13 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"5161.6"},{"label":"split_canvas_h","value":"3732.0"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"77.0,127.5 51.4,168.5 61.9,649.6 40.6,744.5 85.5,919.1 140.3,929.7 683.6,929.8 725.5,830.2 725.5,830.0 725.6,830.0 726.7,827.4 1204.2,791.4 1259.1,470.1 1258.9,390.6 1254.8,175.0 1258.9,174.7 1258.9,142.7 1109.7,108.1 1109.6,117.3 861.0,142.5 861.1,130.3 605.5,121.8 605.5,122.0 353.6,129.3 353.6,124.2 77.0,127.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[861.3,283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.84025586193506,42.46865141029164]}},{"type":"Feature","properties":{"resourceCoords":[606.2,283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.84024733083805,42.469595045681345]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p13 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2902.0"},{"label":"split_canvas_y","value":"2294.0"},{"label":"split_canvas_w","value":"3550.0"},{"label":"split_canvas_h","value":"5358.0"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1026.6,1853.5 1546.5,1869.2 1564.7,1839.7 1560.4,1758.9 1586.0,1736.7 1549.9,1325.5 1581.0,1064.4 1567.6,737.5 1581.8,737.8 1514.0,690.0 1514.0,651.1 1254.8,705.8 1254.2,883.4 793.4,880.0 789.5,1757.8 848.6,1757.8 1025.7,1840.5 1026.6,1853.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1254.2,883.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8310425,42.4649891]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,1757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8354006,42.4640694]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p13 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"3732.0"},{"label":"split_canvas_w","value":"2902.0"},{"label":"split_canvas_h","value":"2624.8"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"223.2,1585.2 679.1,1583.2 696.9,1583.1 707.5,952.0 300.1,953.5 300.1,956.8 153.9,951.8 153.9,960.0 194.1,1587.6 223.1,1587.4 223.2,1585.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0013__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[153.9,1412.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8237138,42.4598473]}},{"type":"Feature","properties":{"resourceCoords":[153.9,962.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8214571,42.4598273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p14","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.9,1567.5 166.5,1109.7 152.4,1110.2 148.8,1110.2 109.2,207.1 163.2,207.1 332.1,13.1 332.7,16.6 1391.3,24.2 1548.6,62.8 1576.5,661.1 1537.5,1128.7 1559.4,1132.1 1575.0,1237.8 1595.7,1832.5 1556.0,1880.4 844.2,1880.2 803.8,1851.5 789.5,1877.2 522.8,1850.7 77.7,1869.8 55.6,1851.7 49.5,1568.8 49.5,1567.8 76.9,1567.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[812.0,208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8060647,42.4693549]}},{"type":"Feature","properties":{"resourceCoords":[1059.0,1335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8048841,42.4651804]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1482.1,1824.9 961.1,1830.1 961.0,1770.4 451.1,1734.2 450.9,1835.3 160.3,1838.9 218.4,949.2 181.4,949.6 179.4,67.1 452.3,60.8 452.3,53.6 960.6,48.7 1228.4,48.4 1487.1,43.7 1482.1,1824.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[448.0,1821.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82366041432701,42.46945635670373]}},{"type":"Feature","properties":{"resourceCoords":[1478.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.81936047596774,42.46753497387821]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1216.9,1618.8 951.6,1618.1 448.0,1621.0 447.9,1628.1 177.6,1633.3 178.9,756.0 204.8,755.8 240.2,246.5 452.6,243.7 1482.3,238.2 1473.2,1615.2 1216.9,1618.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1479.0,745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8171017,42.4674949]}},{"type":"Feature","properties":{"resourceCoords":[448.0,1621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8192758,42.4694115]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.8,1826.8 108.1,73.0 1519.6,55.6 1522.1,873.5 1520.6,917.8 1525.0,1809.0 107.8,1826.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[919.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8192842,42.4660103]}},{"type":"Feature","properties":{"resourceCoords":[1525.0,1809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8237046,42.4649297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.5,1611.2 111.1,237.4 1524.0,241.8 1507.7,1615.0 90.5,1611.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8171004,42.466561]}},{"type":"Feature","properties":{"resourceCoords":[1518.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8170984,42.4648762]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"266.6,1696.7 173.9,1697.7 142.6,1241.8 155.7,1241.6 140.4,781.5 146.1,781.4 122.5,289.6 210.6,293.3 210.1,245.5 247.6,244.5 247.0,194.3 500.4,208.8 500.8,238.4 759.4,232.2 1473.8,215.2 1488.3,1221.2 1495.0,1683.5 1035.8,1688.4 266.6,1696.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[765.0,769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82638165253631,42.46759359464806]}},{"type":"Feature","properties":{"resourceCoords":[1021.0,1235.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.82874197991796,42.46669371902156]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p7","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"377.1,1809.9 377.4,1771.5 120.5,1824.4 122.8,1540.7 130.9,540.9 133.7,94.3 264.1,95.6 360.3,93.2 660.9,93.4 1505.1,90.0 1539.5,714.3 1568.5,714.4 1565.1,762.9 1539.7,766.6 1575.5,1853.9 1364.7,1880.0 444.0,1857.5 377.1,1809.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[933.0,1078.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.826417,42.46196]}},{"type":"Feature","properties":{"resourceCoords":[656.0,540.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8237078,42.4629818]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p8","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1723.4 1612.0,1725.7 1465.6,1721.0 1465.6,1731.2 619.0,1744.0 317.5,1747.2 221.0,1750.5 90.2,1750.7 91.0,1728.5 89.8,1317.4 87.8,629.9 87.0,382.9 102.0,382.6 151.1,91.0 137.4,91.2 186.7,13.4 453.2,20.0 574.0,51.1 1380.0,40.0 1555.9,95.9 1592.5,631.6 1574.8,1722.7 1612.0,1722.5 1612.0,1723.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[619.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8192918,42.4629365]}},{"type":"Feature","properties":{"resourceCoords":[619.0,873.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8170962,42.462914]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Webster City, Iowa | 1950 | sanborn02865_009 p9","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T14:50:50Z","modified":"2026-10-19T14:50:50Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"871.5,1806.4 617.1,1800.2 617.0,1800.4 366.3,1810.0 366.3,1804.8 91.0,1810.6 140.2,1730.6 80.7,707.8 151.6,597.8 152.1,404.3 306.1,115.8 484.6,115.8 611.5,115.7 1374.6,114.9 1377.9,982.2 1436.2,981.7 1612.0,1062.0 1612.0,1074.9 1545.8,1073.4 1575.6,1817.2 1267.9,1847.1 1267.7,1815.2 1118.8,1782.1 1118.8,1791.3 871.6,1818.6 871.5,1806.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154wm:g028651950:02865_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[868.0,987.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.835362,42.4686141]}},{"type":"Feature","properties":{"resourceCoords":[616.0,1478.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8378155,42.4695788]}}]}}]}