{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02747_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Missouri Valley, Iowa | 1901 | 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":"12"},{"label":"placed","value":"10"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 7, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.55979,-95.89390 +/-181m); p8__2 (tier 1, 41.55676,-95.89878 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3106.0"},{"label":"split_canvas_w","value":"3951.2"},{"label":"split_canvas_h","value":"4546.0"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"900.8,1822.0 901.5,1275.8 970.5,1269.8 929.2,913.3 864.4,825.6 668.1,809.8 651.5,1115.0 577.9,1245.4 104.8,1307.7 54.2,1263.7 43.2,1816.2 1.0,1787.6 1.0,1822.5 331.8,1823.4 900.8,1822.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[900.8,1822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8947284,41.5584086]}},{"type":"Feature","properties":{"resourceCoords":[331.9,1276.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8961477,41.5594141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p1 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.59"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3106.0"},{"label":"split_canvas_w","value":"2351.2"},{"label":"split_canvas_h","value":"1740.0"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"470.8,918.5 430.4,917.6 419.4,1169.9 428.7,1170.0 516.5,1165.9 469.3,1144.7 499.9,1087.9 489.4,965.0 470.8,918.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,776.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.88588430480324,41.556897508437565]}},{"type":"Feature","properties":{"resourceCoords":[587.8,776.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.88294395497303,41.556967452031415]}},{"type":"Feature","properties":{"resourceCoords":[587.8,1211.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.88287448509706,41.55533977306876]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1211.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-95.88581483492727,41.55526982947491]}},{"type":"Feature","properties":{"resourceCoords":[543.8,1164.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.883102,41.55551]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p1 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3951.2"},{"label":"split_canvas_y","value":"3106.0"},{"label":"split_canvas_w","value":"2500.8"},{"label":"split_canvas_h","value":"4546.0"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1021.3,1805.0 1026.5,1886.5 1547.5,1889.2 1553.8,1333.1 1553.5,789.4 1034.2,785.2 1034.1,807.0 1038.9,807.2 1021.3,1805.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.1,1336.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.89329240418748,41.558421051680455]}},{"type":"Feature","properties":{"resourceCoords":[1039.7,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.89467195758934,41.55939668993314]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1256.8,1850.4 708.5,1854.5 171.3,1850.3 168.5,1287.5 171.2,711.1 167.1,147.7 713.6,146.2 1252.2,152.1 1252.2,90.5 1612.0,182.1 1539.7,184.8 1594.3,897.1 1512.3,1609.0 1552.1,1840.1 1256.8,1850.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1234.0,707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8932628947369,41.556414964801164]}},{"type":"Feature","properties":{"resourceCoords":[1238.0,1275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.89468626224586,41.556403111522016]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"715.9,1813.0 175.0,1808.8 167.0,1240.0 165.9,164.5 708.9,166.4 1229.3,155.7 1229.2,208.2 1493.7,146.9 1548.0,205.6 1560.9,1831.0 1474.2,1881.4 1126.6,1854.3 715.7,1751.1 715.9,1813.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[167.0,669.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8890184,41.557412]}},{"type":"Feature","properties":{"resourceCoords":[167.0,1240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8904434,41.557411]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1606.1,461.8 1584.7,1700.5 1612.0,1746.2 1358.5,1803.6 1359.0,1751.0 836.9,1759.3 292.4,1754.8 233.2,1755.5 72.9,1754.0 74.8,1243.2 85.7,1243.2 82.6,669.4 103.3,227.6 209.1,236.7 462.8,209.1 835.1,48.6 835.4,130.0 1343.0,138.7 1342.9,120.0 1339.2,69.5 1536.1,145.5 1606.1,461.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[292.0,668.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.885055,41.557427]}},{"type":"Feature","properties":{"resourceCoords":[1359.0,1751.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.887735,41.555429]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.51"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.7,1220.8 61.9,727.0 41.2,727.0 64.3,58.9 908.7,36.9 1561.2,112.9 1561.8,232.7 1565.8,723.7 1566.1,1198.6 1563.8,1488.4 1562.2,1666.2 1562.8,1720.1 580.8,1716.8 61.4,1722.0 60.7,1220.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1106.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.889015,41.5584226]}},{"type":"Feature","properties":{"resourceCoords":[583.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8904445,41.558417]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1108.5,1871.2 538.5,1875.5 538.5,1864.8 31.1,1864.0 31.3,1829.3 33.2,1513.0 31.9,994.8 26.5,459.1 27.9,251.9 33.7,54.9 91.3,33.5 1077.3,36.7 1257.0,116.5 1530.5,124.6 1580.7,167.9 1606.1,1190.0 1547.5,1890.7 1108.5,1871.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1109.0,991.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.885067443653,41.55946664672334]}},{"type":"Feature","properties":{"resourceCoords":[58.0,1545.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.88769549665987,41.55842178730069]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.6,35.6 245.8,46.2 1560.4,51.8 1563.2,1826.2 1199.2,1891.2 271.6,1886.0 58.6,1816.8 23.0,247.4 20.1,248.2 92.0,48.0 218.6,35.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.881898,41.554818]}},{"type":"Feature","properties":{"resourceCoords":[278.0,1507.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.883157,41.552782]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Missouri Valley, Iowa | 1901 | sanborn02747_004 p8 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"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":"2026-10-19T13:16:08Z","modified":"2026-10-19T13:16:08Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1261.7,45.7 1239.6,30.9 743.6,73.1 648.4,196.7 618.0,568.5 564.0,572.0 71.0,574.1 34.5,617.7 53.1,1624.1 373.6,1720.0 402.5,1807.5 519.0,1866.2 1554.5,1876.9 1605.7,1833.3 1592.2,1483.2 1606.0,1480.8 1595.3,1181.4 1590.8,625.6 1594.5,81.1 1261.8,81.4 1261.7,45.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154mm:g027471901:02747_1901-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1016.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.8975602,41.5563553]}},{"type":"Feature","properties":{"resourceCoords":[1016.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.897569,41.5583957]}}]}}]}