{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01996_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marion, Illinois | 1937 | 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":"27"},{"label":"placed","value":"22"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef-snap 11, georef 10, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p11__1 (tier 1, 37.74020,-88.93192 +/-226m); p11__3 (tier 3, 37.74126,-88.92923 +/-832m); p18__4 (tier 1, 37.73197,-88.94676 +/-167m); p18__5 (tier 1, 37.72286,-88.93235 +/-113m); p6__2 (tier 1, 37.73554,-88.93096 +/-272m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p10 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.1,1771.9 365.7,1774.3 1533.7,1785.8 1538.1,839.1 1540.7,502.1 1527.0,464.3 1527.0,117.8 1558.3,117.3 1558.2,81.2 1543.2,81.2 1520.8,112.8 1498.6,79.0 1319.2,33.3 1128.4,28.6 1102.1,54.7 858.8,68.6 690.2,131.4 670.7,1104.2 669.6,1104.2 669.6,1105.0 615.2,1105.0 87.0,1112.7 34.3,1183.6 67.2,1344.6 32.9,1494.2 23.4,1757.3 32.1,1771.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1021.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.934979,37.737029]}},{"type":"Feature","properties":{"resourceCoords":[766.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9361637,37.7408354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p10 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2678.4"},{"label":"split_canvas_h","value":"4420.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"15.1,176.4 31.8,176.2 94.5,447.9 94.5,768.9 165.7,797.9 188.9,876.0 174.8,947.1 96.6,962.9 79.2,1071.3 549.3,1080.9 619.7,1039.1 654.9,855.8 626.9,264.7 568.1,96.2 262.4,100.8 12.9,104.5 15.1,176.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[573.6,524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92463426011196,37.7222585226825]}},{"type":"Feature","properties":{"resourceCoords":[275.8,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92597413153162,37.72381421650083]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p11 [2]","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"23"},{"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":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.0,1095.2 79.7,1131.2 48.5,1131.2 44.7,1476.1 57.9,1513.8 51.6,1849.2 227.3,1850.4 226.6,1835.0 690.8,1845.9 690.6,1862.2 1485.6,1866.7 1488.0,1713.0 1497.4,1395.9 1502.8,1138.6 1487.5,1138.2 1490.3,1038.3 1494.8,737.0 1488.0,397.0 1492.3,397.1 1496.7,249.2 1515.9,249.5 1518.6,76.9 979.4,31.2 893.1,74.5 649.1,674.0 631.2,692.4 627.5,702.2 621.8,702.1 588.5,736.4 513.9,746.4 446.8,991.1 386.0,1084.3 386.0,1088.0 383.6,1088.0 381.9,1090.6 79.8,1089.4 80.0,1095.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1488.0,1713.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.926059,37.738856]}},{"type":"Feature","properties":{"resourceCoords":[1488.0,397.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9261537,37.743623]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5420.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2232.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.3,1834.7 261.4,1803.6 261.3,1809.4 474.6,1839.0 474.5,1841.3 686.8,1837.2 686.8,1838.5 960.2,1854.2 960.0,1858.2 1275.6,1866.2 1275.7,1861.6 1591.7,1874.0 1592.5,1864.5 1592.4,1857.1 1559.1,1853.0 1580.5,1568.1 1557.0,1417.5 1530.3,1413.8 1170.8,1434.2 612.3,1369.3 401.2,1374.5 271.2,1410.2 115.8,1393.8 116.0,1359.3 109.1,1359.2 57.0,1681.3 95.4,1681.9 75.3,1834.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[486.0,1687.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.91764867302795,37.73939999802189]}},{"type":"Feature","properties":{"resourceCoords":[1276.0,1687.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.91400999602229,37.73942947664808]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p12 [2]","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"33"},{"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":"5420.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.2,483.1 99.8,781.8 98.3,880.7 113.5,880.9 111.5,1135.8 108.1,1348.9 435.1,1354.0 544.3,1354.0 544.4,1341.3 859.1,1319.5 859.1,1298.1 1481.8,1303.1 1498.2,1303.2 1547.5,982.0 1554.3,982.0 1552.0,503.6 1582.0,245.4 1560.2,105.2 1154.7,19.4 114.5,31.9 114.6,1.0 95.6,1.0 93.2,146.4 89.0,146.5 100.2,483.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0012__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[241.0,483.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9254471,37.7423936]}},{"type":"Feature","properties":{"resourceCoords":[1481.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9197076,37.7405791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.8,50.1 185.4,212.5 188.1,432.5 185.4,742.5 77.7,743.0 128.3,1209.9 138.2,1209.9 169.9,1470.7 153.3,1470.5 218.8,1725.0 158.4,1723.8 160.3,1853.1 685.6,1884.6 1315.6,1865.4 1307.1,1884.6 1466.3,1886.9 1467.3,1565.4 1466.3,1231.9 1469.7,1088.9 1415.8,749.4 1327.8,748.9 1337.5,669.3 1339.6,465.9 1341.8,407.2 1343.3,261.2 1305.1,1.0 1296.3,1.0 1294.2,53.5 923.3,90.3 505.2,34.0 145.6,56.1 123.8,50.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[780.0,1866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9418576520109,37.72669845707292]}},{"type":"Feature","properties":{"resourceCoords":[1475.0,744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9387131018764,37.73081076834488]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"213.1,1625.6 155.7,1285.5 67.3,1285.8 76.2,1205.8 76.4,1001.8 78.0,942.8 78.2,796.3 37.1,534.6 28.5,534.7 40.8,154.3 49.9,154.3 381.4,155.4 1542.0,162.5 1538.2,715.9 1539.2,1035.3 1539.3,1284.5 1540.9,1437.9 1542.6,1464.4 1542.5,1588.3 1544.1,1772.7 1434.2,1772.3 1189.9,1775.2 637.9,1774.7 303.5,1769.2 211.1,1769.1 213.1,1625.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1030.0,167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.93497811127521,37.734850152969805]}},{"type":"Feature","properties":{"resourceCoords":[747.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.93627217507292,37.73079597111004]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p15","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"36"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"195.4,791.5 193.3,469.4 189.2,135.3 281.4,135.4 615.3,141.0 1166.5,141.7 1410.5,138.9 1520.2,139.3 1519.8,468.6 1517.5,982.4 1515.8,1139.2 1514.6,1430.0 1512.3,1718.9 1416.9,1718.2 1358.1,1826.4 1078.7,1815.6 469.8,1885.5 54.1,1870.1 65.5,1666.0 21.1,1480.4 21.9,823.4 35.9,790.8 195.4,791.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[467.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.937448,37.725958]}},{"type":"Feature","properties":{"resourceCoords":[897.0,473.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9354748,37.7278097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"87.1,1777.6 87.2,1654.3 86.4,1364.2 87.0,1207.7 85.8,695.1 83.8,366.6 82.9,305.9 338.3,297.6 337.8,280.3 563.4,249.6 563.5,285.8 712.4,179.2 712.2,121.8 1012.7,117.7 1260.6,118.4 1359.1,117.5 1503.4,117.1 1503.5,270.0 1500.7,458.2 1501.8,618.0 1503.7,680.6 1506.8,942.1 1511.2,1095.0 1512.7,1355.5 1516.4,1509.8 1520.2,1792.3 1272.5,1794.5 1274.3,1866.0 332.4,1871.5 87.1,1777.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1511.0,1034.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92605806019158,37.72656337703498]}},{"type":"Feature","properties":{"resourceCoords":[568.0,798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.93039472663716,37.72744312123484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"229.3,34.7 662.3,38.8 700.0,37.7 730.1,37.6 1417.5,145.6 1417.6,141.5 1493.6,150.4 1587.0,150.8 1574.5,163.3 1571.7,1184.0 1403.0,1197.3 1290.9,1544.5 1211.1,1656.1 1209.8,1790.9 1145.3,1872.7 429.9,1873.0 430.6,1901.1 375.2,1730.8 68.1,1728.8 68.8,1443.2 67.5,1287.1 70.2,1023.6 68.2,869.0 69.3,604.4 68.4,541.1 69.8,379.5 75.7,189.3 78.0,34.6 229.3,34.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[233.0,965.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92532008857597,37.726558147590076]}},{"type":"Feature","properties":{"resourceCoords":[659.0,453.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92340357405584,37.728417655168585]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p18 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"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":"1817.2"},{"label":"split_canvas_h","value":"5074.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.7,320.6 57.5,321.4 50.6,980.3 75.2,1058.8 192.2,1159.1 202.7,1201.8 405.8,1206.5 378.8,910.7 414.9,804.0 409.4,501.2 450.7,499.9 451.9,330.5 388.8,330.1 386.1,159.2 426.1,152.2 191.0,59.4 189.1,218.1 97.5,217.1 40.7,320.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[189.1,758.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.932628,37.721238]}},{"type":"Feature","properties":{"resourceCoords":[189.1,218.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.932641,37.723284]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p18 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1778.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4673.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1015.5,1336.7 1024.7,1336.7 1024.7,1337.5 1025.2,1337.5 1131.5,1508.0 1134.0,1740.9 1104.0,1836.8 1166.6,1863.0 1540.1,1883.3 1537.5,1754.4 1597.7,1755.3 1531.0,1501.7 1547.5,1501.8 1514.4,1241.9 1504.6,1241.9 1451.5,776.5 1559.0,775.4 1559.8,466.1 1556.0,246.7 1493.6,85.0 1290.3,30.6 1087.0,70.2 806.2,68.8 805.6,187.1 768.2,294.0 723.7,330.8 700.8,467.4 678.5,496.9 552.8,518.4 530.8,1220.5 548.9,1294.5 1015.5,1336.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1387.1,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.94544334567166,37.73075698879288]}},{"type":"Feature","properties":{"resourceCoords":[628.5,1243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.94893542000347,37.729042100907826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p18 [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":"0.0"},{"label":"split_canvas_y","value":"5074.0"},{"label":"split_canvas_w","value":"1780.4"},{"label":"split_canvas_h","value":"1136.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"434.7,1485.2 429.6,1318.6 385.2,1288.3 340.1,1321.0 314.5,1280.0 310.2,1320.6 258.4,1286.6 187.1,1322.6 165.0,1300.1 149.8,1318.4 146.6,1285.0 19.8,1287.0 11.6,1338.7 1.0,1338.5 1.0,1513.1 16.6,1512.8 23.6,1549.9 262.3,1549.5 303.9,1502.0 434.7,1485.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0018__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1268.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.93121086917483,37.7231184573681]}},{"type":"Feature","properties":{"resourceCoords":[445.1,1268.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.92917547002978,37.723140963760365]}},{"type":"Feature","properties":{"resourceCoords":[445.1,1552.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.92915743812009,37.72210622574244]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1552.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.93119283726514,37.72208371935019]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p2","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1465.2,1436.3 1464.0,1731.0 1267.6,1732.7 773.2,1730.9 174.0,1738.7 181.0,1242.8 178.1,933.8 182.8,452.0 549.9,449.7 541.9,183.2 775.5,161.4 775.4,151.4 986.2,150.8 1162.2,150.4 1462.2,154.6 1467.6,450.1 1464.1,1031.8 1400.0,1103.5 1399.9,1196.6 1466.9,1239.2 1399.7,1284.0 1399.5,1384.8 1465.2,1436.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1464.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.926733,37.7299051]}},{"type":"Feature","properties":{"resourceCoords":[1263.0,153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.927178,37.7327892]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p3","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"29"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.5,165.8 66.5,462.4 64.1,1046.0 1.0,1117.0 1.0,1212.2 67.3,1254.2 1.0,1298.7 1.0,1401.2 66.0,1452.0 65.4,1747.7 354.1,1746.5 653.5,1741.5 1510.3,1734.8 1504.1,1235.9 1496.8,1235.9 1506.0,446.4 1525.6,446.1 1520.0,150.5 351.6,163.8 60.5,165.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[655.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9253598,37.7316915]}},{"type":"Feature","properties":{"resourceCoords":[66.0,1452.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9267267,37.7304433]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p4","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1463.5,1593.0 1166.0,1803.6 1166.2,1731.6 716.8,1790.4 717.8,1824.9 209.3,1838.8 206.8,1594.1 206.5,1348.2 203.0,1295.8 199.3,991.6 198.2,497.6 196.9,234.8 874.5,228.3 874.7,200.3 1478.1,194.3 1471.3,675.1 1472.8,983.6 1463.8,1478.5 1463.5,1593.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[873.0,498.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.931077,37.7316988]}},{"type":"Feature","properties":{"resourceCoords":[1167.0,1476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9303988,37.7299085]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"489.2,1762.1 254.8,1784.8 215.2,610.7 172.2,611.1 369.2,122.6 463.2,121.3 464.0,215.8 975.6,167.0 975.0,114.0 1443.7,107.6 1443.5,433.7 1467.9,1005.3 1470.1,1750.2 1178.8,1752.7 877.6,1749.6 700.8,1750.7 600.3,1751.3 489.2,1752.0 489.2,1762.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1176.0,1447.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9267182,37.7333404]}},{"type":"Feature","properties":{"resourceCoords":[975.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.927153,37.735768]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.8,1787.4 415.2,1784.1 415.3,1770.1 717.6,1767.0 901.1,1766.7 882.6,1048.7 861.2,1048.7 961.2,806.3 1008.0,806.0 1008.0,853.0 1263.0,830.8 1262.9,804.4 1496.3,803.0 1504.0,454.5 1499.0,111.2 710.5,120.0 710.4,103.8 249.9,100.7 250.9,115.9 76.5,117.7 77.5,1052.0 74.9,1601.7 75.8,1787.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[424.0,1612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.93103163160767,37.732821051856405]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1056.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.93259930885851,37.734853368903195]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.3,1877.5 69.9,1502.6 60.5,1214.9 62.2,1050.8 70.8,698.5 66.4,351.6 66.5,197.5 68.0,95.2 509.4,101.5 509.4,100.8 509.4,99.7 509.4,86.8 827.9,64.4 827.9,42.8 1458.0,47.0 1513.3,47.2 1474.5,365.2 1477.7,365.2 1500.2,691.0 1543.5,690.6 1543.3,890.1 1548.0,1280.8 1545.9,1579.0 1549.8,1875.7 1384.9,1877.7 1299.8,1817.2 1246.0,1817.0 1246.2,1873.5 655.7,1875.5 67.3,1877.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[227.0,1705.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92531906852942,37.73340814639595]}},{"type":"Feature","properties":{"resourceCoords":[1141.0,373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.92114777509356,37.73822547235641]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.7,1477.2 110.5,1181.4 105.5,794.0 105.5,596.1 62.6,596.6 40.0,273.5 36.8,273.5 56.5,111.1 242.0,78.1 242.0,83.9 455.5,111.3 455.5,113.7 667.6,107.4 667.6,108.6 941.0,121.6 941.0,125.6 1256.4,130.3 1256.5,125.7 1572.4,134.9 1576.6,251.2 1572.9,1709.7 1612.0,1710.0 1612.0,1717.9 921.7,1871.9 921.7,1853.7 921.7,1846.6 921.6,1818.0 663.8,1816.9 113.5,1814.8 108.7,1477.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[390.0,1189.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9179958438761,37.7349184344625]}},{"type":"Feature","properties":{"resourceCoords":[1430.0,895.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.91320336892669,37.73599003594453]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p9 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.34"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3778.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3874.0"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.0,1889.4 135.4,1887.7 731.2,1906.8 883.5,1870.5 1206.9,1912.0 1343.7,1912.0 1552.2,1911.7 1578.3,1869.3 1547.5,1545.4 1580.7,1453.4 1579.0,1018.4 1559.3,976.7 1479.0,958.6 1058.6,960.7 1024.2,968.8 1023.1,969.1 313.2,1136.9 312.9,1110.8 312.4,1081.4 46.5,1083.6 47.1,1305.7 53.7,1592.5 101.6,1594.8 104.5,1790.1 134.0,1889.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[118.0,1596.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.91644374298438,37.73081492315885]}},{"type":"Feature","properties":{"resourceCoords":[47.0,1094.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.91673245309659,37.73259182198948]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marion, Illinois | 1937 | sanborn01996_007 p9 [2]","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"35"},{"label":"confidence","value":"0.93"},{"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":"3829.2"}],"created":"2026-10-19T22:41:32Z","modified":"2026-10-19T22:41:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.2,849.0 109.0,848.5 789.0,947.0 789.0,942.9 861.6,950.6 1456.6,945.8 1513.5,944.9 1563.8,883.6 1536.2,787.0 1535.4,597.6 1489.1,595.0 1485.6,316.8 1487.3,101.5 937.5,100.5 936.9,57.2 773.5,59.7 690.4,1.0 635.6,1.0 636.0,56.0 51.0,59.8 53.0,207.3 43.2,207.4 36.6,601.4 40.2,601.5 42.1,850.5 79.2,849.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104mm:g019961937:01996_1937-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1100.0,738.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9185267,37.7303111]}},{"type":"Feature","properties":{"resourceCoords":[1217.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.917981,37.732634]}}]}}]}