{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02610_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clinton, Iowa | 1890 | 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":"35"},{"label":"placed","value":"15"},{"label":"unplaced","value":"20"},{"label":"fit sources","value":"georef-snap 9, georef 5, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 24 panels"},{"label":"unplaced pages","value":"p13__1 (tier 1, 41.82943,-90.19127 +/-260m); p13__2 (tier 1, 41.83039,-90.19103 +/-100m); p15 (tier 3, 41.83617,-90.18666 +/-536m); p17__1 (tier 3, 41.83025,-90.18742 +/-536m); p17__2 (tier 1, 41.83064,-90.18808 +/-100m); p18__1 (tier 3, 41.82545,-90.19858 +/-536m); p18__2 (tier 3, 41.82545,-90.19858 +/-536m); p19__1 (tier 1, 41.84270,-90.20357 +/-193m); p19__2 (tier 1, 41.84417,-90.20383 +/-187m); p20__1 (tier 1, 41.82514,-90.20764 +/-100m); p20__2 (tier 1, 41.84485,-90.19976 +/-228m); p20__3 (tier 1, 41.84475,-90.19852 +/-174m); p20__4 (tier 1, 41.84833,-90.20051 +/-100m); p20__5 (tier 1, 41.84602,-90.19841 +/-107m); p21__1 (tier 1, 41.82112,-90.21231 +/-226m); p21__2 (tier 3, 41.82583,-90.20331 +/-768m); p22__1 (tier 1, 41.84757,-90.18944 +/-242m); p22__2 (tier 1, 41.84867,-90.19290 +/-202m); p3__1 (tier 1, 41.84877,-90.18815 +/-254m); p4__2 (tier 1, 41.84554,-90.18902 +/-123m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p10","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.43"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1580.5,1862.8 1579.7,1765.0 1566.3,1765.7 1608.1,846.9 1579.5,65.0 1541.7,34.0 1025.2,37.6 808.3,45.1 562.0,60.5 562.0,7.4 72.4,21.0 110.5,1771.6 51.2,1813.1 1.0,1847.2 1.0,1858.8 1580.5,1862.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[562.0,34.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1907316,41.8377529]}},{"type":"Feature","properties":{"resourceCoords":[1548.0,34.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1882436,41.837736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p11","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.30"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.6,123.8 387.8,105.4 904.0,91.5 999.9,113.1 1084.6,111.4 1173.4,100.5 1271.8,73.6 1349.7,39.3 1495.0,33.7 1543.0,630.2 1539.8,630.4 1542.9,1199.0 1542.4,1199.1 1554.5,1766.6 1470.2,1769.8 1471.0,1831.8 59.8,1848.8 50.4,145.6 49.0,144.3 139.6,123.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1051.0,1226.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1931135,41.8321708]}},{"type":"Feature","properties":{"resourceCoords":[1051.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1931508,41.8311464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p12","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.2,1201.3 81.4,641.1 84.5,641.1 52.0,52.3 1552.7,67.0 1552.7,75.8 1566.0,585.3 1566.8,722.5 1565.3,1056.5 1567.7,1464.1 1568.4,1746.2 566.0,1754.0 67.6,1760.7 69.8,1201.4 70.2,1201.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[566.0,634.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1906658,41.8332477]}},{"type":"Feature","properties":{"resourceCoords":[566.0,1754.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.190671,41.8311676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"54.4,125.4 24.3,998.9 87.3,1871.1 838.9,1874.3 1095.5,1806.1 1547.0,1842.4 1595.5,1247.7 1565.5,142.5 1565.5,141.5 1563.1,142.6 1560.2,29.7 572.9,50.2 1.0,65.2 1.0,125.4 54.4,125.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[594.0,594.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19063770140627,41.83014191098772]}},{"type":"Feature","properties":{"resourceCoords":[1556.0,56.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.18818398802684,41.831129276507276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p16","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.18"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.0,1800.0 96.4,1119.7 102.1,699.6 93.0,152.0 93.8,45.8 947.9,16.9 1212.8,47.5 1226.7,105.0 1527.6,114.4 1440.6,249.9 1438.6,507.9 1481.5,522.5 1359.7,528.8 1341.6,1023.0 1388.3,1482.0 1538.8,1490.3 1507.8,1798.2 1263.6,1860.9 95.6,1852.1 95.8,1912.0 93.4,1912.0 93.0,1800.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[93.0,1800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1881724,41.8311787]}},{"type":"Feature","properties":{"resourceCoords":[93.0,152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1882037,41.8342811]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p2 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.75"},{"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":"3028.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.5,1793.5 176.7,1852.8 646.2,1810.9 721.8,501.8 705.1,136.7 621.0,64.4 301.8,48.8 99.3,105.8 57.5,1278.4 92.5,1793.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[421.1,797.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1932852,41.8445074]}},{"type":"Feature","properties":{"resourceCoords":[421.1,1328.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1932735,41.8434081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.14"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2972.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3480.0"},{"label":"split_canvas_h","value":"2606.0"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1517.5,650.5 1509.9,311.1 1503.7,40.2 1494.2,41.1 774.2,24.5 769.0,620.7 1508.8,643.6 1509.0,650.5 1517.5,650.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[743.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.1978099577042,41.83778238689146]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.19542420958322,41.837758541678554]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,651.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.19544802698002,41.836417049362744]}},{"type":"Feature","properties":{"resourceCoords":[743.0,651.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.19783377510097,41.83644089457565]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p2 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.57"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2990.8"},{"label":"split_canvas_y","value":"2606.0"},{"label":"split_canvas_w","value":"3461.2"},{"label":"split_canvas_h","value":"5046.0"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1503.7,691.1 1503.7,695.4 1139.9,720.5 1085.3,672.1 790.1,711.3 796.4,1836.9 1069.2,1842.0 1534.5,1841.7 1568.7,1841.2 1529.7,1251.8 1535.8,1251.7 1577.5,691.0 1503.7,691.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0002__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1053.5,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19326271482684,41.83782948223609]}},{"type":"Feature","properties":{"resourceCoords":[1053.5,693.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19328222868094,41.84003589895961]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p3 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.31"},{"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":"2326.4"},{"label":"split_canvas_h","value":"3167.2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.0,767.8 531.9,756.2 538.5,80.2 441.1,48.5 333.4,109.0 221.2,43.0 100.5,113.8 127.0,767.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18787704163634,41.84941387704222]}},{"type":"Feature","properties":{"resourceCoords":[581.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18648119317143,41.849190226413825]}},{"type":"Feature","properties":{"resourceCoords":[581.6,791.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18688690381104,41.84776528702094]}},{"type":"Feature","properties":{"resourceCoords":[0.0,791.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18828275227595,41.84798893764933]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.66"},{"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":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1581.2,89.7 1575.7,108.9 1497.1,93.3 1489.5,122.1 951.5,135.9 814.2,206.1 717.4,879.1 717.6,920.5 711.4,920.5 710.5,926.6 287.4,927.6 78.6,989.5 113.8,1033.4 56.2,1047.0 81.8,1086.1 55.4,1104.7 175.6,1222.0 180.0,1409.8 69.3,1624.8 65.9,1855.8 1542.6,1884.6 1544.0,1912.0 1580.5,1912.0 1584.8,1666.5 1582.7,1298.3 1583.8,1086.3 1591.9,668.3 1598.8,668.5 1581.2,89.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0004__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":[-90.18416526035404,41.847537985328486]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18410609419371,41.84450336665486]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18890350542645,41.84445072472895]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18896267158678,41.847485343402575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"775.7,88.5 1016.3,90.4 1377.1,84.8 1572.4,84.0 1562.4,658.2 1554.2,658.0 1547.0,1238.5 1541.6,1238.5 1531.9,1832.5 1017.0,1834.1 44.6,1836.5 44.6,1824.0 50.6,1823.2 66.2,96.8 775.4,52.6 775.7,88.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1004.0,653.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.18831087194553,41.84343797174751]}},{"type":"Feature","properties":{"resourceCoords":[63.0,653.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19071900980119,41.843429225334525]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.4,1811.3 104.5,1222.9 109.8,1222.7 92.9,647.7 101.0,647.6 87.2,78.8 99.5,78.2 505.2,65.2 505.4,72.0 1065.8,25.8 1492.5,124.2 1501.9,186.9 1378.1,254.7 1393.9,492.6 1347.2,557.4 1450.6,1458.5 1349.4,1567.5 1357.7,1791.6 1143.1,1860.8 1063.0,1818.7 1006.3,1805.0 673.4,1816.0 598.0,1790.4 356.3,1800.7 119.4,1811.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[575.0,644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.18565796568218,41.843406599172766]}},{"type":"Feature","properties":{"resourceCoords":[575.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.1857687668238,41.84117006543359]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1565.0,1806.7 1545.8,1867.2 1039.4,1861.7 826.6,1865.2 584.9,1876.0 585.8,1824.0 130.6,1828.5 91.8,1224.0 98.0,1224.0 142.1,649.2 66.3,649.1 70.9,111.8 593.1,53.8 593.1,66.2 1560.2,67.5 1557.7,650.5 1560.2,1228.7 1564.0,1513.6 1557.1,1754.2 1565.4,1805.7 1565.0,1806.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[578.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19078987470216,41.8411441522293]}},{"type":"Feature","properties":{"resourceCoords":[1548.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.18829383251739,41.84116025972203]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.20"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"783.6,117.7 1032.3,109.3 1109.5,136.2 1451.9,127.8 1510.1,142.4 1592.0,186.1 1534.6,203.9 1504.4,412.4 1582.5,882.8 1405.4,1768.5 1047.4,1857.3 103.1,1869.5 86.1,1912.0 75.2,1912.0 75.7,1860.0 73.7,1615.1 59.1,1325.7 35.0,738.0 15.7,145.3 783.6,117.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18829205462386,41.841460905493285]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.1842417973433,41.841375663217555]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18437654330499,41.83777167722845]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.18842680058555,41.83785691950418]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clinton, Iowa | 1890 | sanborn02610_002 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:32:21Z","modified":"2026-10-19T21:32:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1289.2,1851.9 1194.8,1873.3 1110.0,1880.0 1029.5,1878.0 939.5,1853.4 449.1,1844.8 212.8,1851.8 126.0,1867.4 58.5,1804.5 56.5,712.4 65.5,712.7 70.9,60.2 727.9,19.2 1040.1,25.3 1515.1,30.0 1525.1,30.0 1516.9,1738.5 1458.1,1777.5 1407.4,1802.0 1407.2,1810.1 1364.5,1822.7 1289.2,1851.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026101890:02610_1890-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1036.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19317490644224,41.835353590421136]}},{"type":"Feature","properties":{"resourceCoords":[70.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.19567260509231,41.83532123434723]}}]}}]}