{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn04442_008.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clarksdale, Mississippi | 1923 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"29"},{"label":"placed","value":"22"},{"label":"unplaced","value":"7"},{"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 15 panels"},{"label":"unplaced pages","value":"p13__2 (tier 1, 34.20226,-90.56567 +/-100m); p14__1 (tier 1, 34.19756,-90.55722 +/-187m); p14__2 (tier 1, 34.19923,-90.55947 +/-108m); p19__1 (tier 1, 34.19490,-90.57995 +/-100m); p19__4 (tier 1, 34.19448,-90.57448 +/-100m); p20 (tier 3, 34.21011,-90.54409 +/-715m); p8__2 (tier 1, 34.19625,-90.57374 +/-220m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"169.3,1868.7 194.9,1854.2 481.3,1872.2 904.5,1770.1 1555.5,1875.2 1592.3,1677.8 1507.9,1571.7 1607.8,1060.2 1583.9,117.3 1358.5,42.7 1090.2,135.8 662.0,171.4 525.1,92.8 571.1,43.0 364.8,50.0 103.8,143.4 17.0,302.1 1.0,299.4 1.0,432.1 2.7,663.8 2.4,1083.8 44.5,1083.9 108.7,1802.3 169.3,1868.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[408.0,1084.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.56665907887272,34.18918146959216]}},{"type":"Feature","properties":{"resourceCoords":[1590.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.56432374488853,34.18708326721517]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p11 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"19"},{"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":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"833.5,1752.1 833.4,1797.8 769.4,1896.7 999.5,1885.8 1581.3,1832.9 1588.5,1745.7 1601.3,1743.2 1597.5,1421.3 1606.8,1419.5 1573.8,1190.9 1494.9,1102.5 1383.0,1071.7 1363.5,1024.6 1395.1,893.5 1458.8,901.2 1231.8,804.0 1127.7,836.7 1095.5,906.0 920.9,879.2 859.1,768.0 898.7,604.2 953.8,567.4 524.8,525.5 498.9,473.1 424.2,447.3 411.7,355.7 173.3,318.8 115.0,433.8 124.7,433.8 126.0,701.6 102.5,701.9 96.0,702.0 69.3,979.8 41.0,980.0 42.7,1363.6 46.0,1731.7 45.6,1751.5 172.8,1750.6 331.5,1747.4 331.6,1759.7 628.2,1803.7 629.2,1836.6 728.7,1901.5 833.5,1752.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[623.0,1358.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.570069,34.2036443]}},{"type":"Feature","properties":{"resourceCoords":[41.0,980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5729195,34.2044761]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p11 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2162.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4289.6"},{"label":"split_canvas_h","value":"2090.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"627.7,360.4 638.4,360.5 615.6,416.4 775.0,436.9 814.5,440.0 1190.1,440.7 1437.5,441.1 1460.8,441.1 1462.6,175.6 1453.0,175.5 1512.1,62.1 1351.3,35.3 1205.5,82.5 1182.8,141.8 1133.3,171.4 885.4,123.7 796.2,158.5 638.5,298.4 627.7,360.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1089.3,177.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57471382196589,34.206119828768564]}},{"type":"Feature","properties":{"resourceCoords":[810.5,442.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57561652887753,34.204935968257544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p12","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"30"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1264.3,1783.8 1113.1,1772.8 971.0,1823.4 722.6,1854.7 441.9,1830.2 187.9,1846.5 160.3,1888.4 54.2,1894.1 49.5,1766.3 31.3,1335.2 22.1,909.9 28.1,770.1 41.8,687.4 53.0,637.9 104.0,638.4 659.6,57.4 887.8,89.5 887.6,89.9 1612.0,161.1 1612.0,185.7 1459.6,185.2 1456.2,641.9 1456.8,1002.7 1513.4,1335.2 1557.9,1335.2 1612.0,1333.8 1612.0,1335.7 1449.1,1770.5 1360.0,1769.0 1285.5,1769.2 1276.3,1789.2 1264.3,1783.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[483.0,987.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5679269,34.1985673]}},{"type":"Feature","properties":{"resourceCoords":[864.0,641.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5670373,34.20027]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p13 [1]","metadata":[{"label":"streets","value":"17"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.99"},{"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":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.4,1594.8 138.0,1594.8 200.4,1593.3 223.8,1600.3 488.0,1719.6 669.5,1803.2 902.4,1912.0 1009.0,1912.0 1043.5,1836.3 1124.6,1848.5 1163.7,1672.3 1236.5,1548.7 1362.5,1498.8 1506.7,1490.2 1582.1,1016.8 1575.9,332.9 1545.0,219.7 1469.5,177.1 1272.3,211.1 1121.3,171.2 1059.1,217.1 915.5,151.7 880.1,102.5 701.6,81.5 694.9,95.5 375.6,37.1 365.8,53.9 153.2,31.3 154.6,1.0 144.9,1.0 87.6,317.9 74.5,317.9 50.9,402.3 195.7,416.8 194.6,441.4 41.6,440.6 37.4,898.9 37.2,1261.0 93.4,1594.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[976.0,701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5613327,34.2031929]}},{"type":"Feature","properties":{"resourceCoords":[1526.0,701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5591594,34.204012]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0014__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p14 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"3644.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4008.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0014__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"122.2,1525.6 160.0,1551.8 160.8,1691.0 123.3,1736.4 157.7,1830.3 835.0,1777.9 1166.3,1798.8 1207.9,1836.2 1324.7,1850.7 1505.3,1838.5 1538.9,1793.1 1542.3,1710.3 1504.2,1631.4 1406.2,1609.3 1369.8,1116.5 1237.6,1026.8 1219.1,1087.1 1083.6,1087.8 1060.4,971.2 992.6,960.3 992.4,915.6 895.4,960.5 637.7,959.4 437.5,959.5 146.9,962.1 122.8,965.5 116.2,968.8 150.1,1436.6 68.0,1472.6 1.0,1503.7 1.0,1526.2 122.2,1525.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0014__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.55971759039083,34.19910340720387]}},{"type":"Feature","properties":{"resourceCoords":[241.0,967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.56227843567919,34.19911431764303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1554.7,751.4 1555.3,1208.1 1556.2,1367.6 1560.0,1522.0 1371.2,1604.4 1304.8,1629.4 1090.7,1702.5 773.9,1828.9 547.6,1910.8 526.6,1796.2 466.7,1805.2 411.8,1749.6 313.5,1784.0 218.9,1671.3 118.5,1643.4 77.2,1401.6 96.5,1276.7 64.4,1173.6 87.1,1114.5 48.9,678.5 59.4,596.0 113.6,525.8 97.3,456.7 221.6,428.9 246.9,388.6 195.1,229.3 274.6,197.6 242.7,106.3 358.9,89.3 764.5,156.2 1069.6,104.7 1423.9,114.7 1515.2,82.8 1552.5,111.0 1554.7,751.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[978.0,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58696185744566,34.202960811905776]}},{"type":"Feature","properties":{"resourceCoords":[1112.0,126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58405977103706,34.20834904045268]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"163.6,1085.0 249.5,950.9 497.3,567.9 843.6,29.9 846.0,36.3 1089.6,88.0 1447.2,64.2 1566.6,123.9 1566.0,926.9 1591.4,948.4 1564.7,1010.7 1571.8,1578.4 1595.6,1829.3 1431.8,1831.3 516.9,1835.3 394.3,1840.7 80.8,1843.0 72.7,1527.6 70.1,1394.0 82.8,1216.5 163.6,1085.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[942.0,684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58111580172437,34.20565034430744]}},{"type":"Feature","properties":{"resourceCoords":[69.0,1829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58364963611851,34.2008616278931]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p17","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"30"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"354.1,51.9 693.5,39.2 918.9,42.2 989.5,40.9 1194.3,26.8 1222.8,201.8 1256.1,330.8 1336.7,635.0 1373.8,802.2 1420.2,993.4 1447.8,1092.4 1484.8,1250.0 1557.0,1544.8 1575.7,1544.9 1612.0,1755.9 1612.0,1856.9 1455.6,1883.6 1044.7,1822.0 818.7,1831.8 278.1,1769.5 182.1,1720.8 90.2,1590.6 99.0,1357.2 59.2,1190.3 114.2,627.5 60.0,390.1 114.5,53.1 354.1,51.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[978.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.585156,34.199675]}},{"type":"Feature","properties":{"resourceCoords":[142.0,648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.588844,34.20075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1439.8,1600.1 1387.8,1609.4 1388.2,1638.2 1092.5,1683.5 973.7,1651.6 459.3,1749.2 455.8,1762.5 392.0,1869.0 198.8,1820.9 230.1,1695.5 96.5,1605.1 67.7,1400.0 35.7,1397.8 58.5,1299.8 73.0,1086.8 55.0,1082.3 54.5,779.8 55.8,618.4 52.4,516.0 52.5,319.9 55.8,149.1 367.5,148.4 489.3,143.8 1398.8,144.7 1561.6,143.5 1582.5,376.9 1567.5,1872.8 1557.7,1912.0 1553.4,1912.0 1543.7,1912.0 1538.8,1879.5 1465.2,1860.8 1509.6,1685.6 1495.3,1590.3 1439.8,1600.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[486.0,773.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58107521212662,34.19899117541565]}},{"type":"Feature","properties":{"resourceCoords":[486.0,153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.58173734901378,34.20118856400453]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p19 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1547.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4904.8"},{"label":"split_canvas_h","value":"2702.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1516.7,43.6 1143.3,45.0 876.8,42.5 621.6,42.0 621.3,28.3 458.1,53.6 463.6,261.5 553.8,313.3 1089.8,328.6 1116.1,622.0 1199.7,648.9 1582.7,637.9 1571.6,350.1 1518.0,74.5 1522.0,64.4 1522.2,63.9 1516.7,43.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[877.5,308.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5391484,34.2165591]}},{"type":"Feature","properties":{"resourceCoords":[1143.3,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5401885,34.2176508]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p19 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"1482.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6170.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.8,949.2 36.5,949.1 36.2,1873.0 69.9,1910.1 1571.8,1911.9 1553.8,1906.0 1546.7,1888.5 1560.5,1878.4 1589.6,1695.8 1588.1,1289.7 1535.5,1196.8 1527.5,1044.1 1479.0,1040.5 1475.2,995.9 1258.8,933.4 1255.4,931.5 1255.0,931.5 1255.0,931.3 1254.8,870.0 1180.0,780.9 1179.7,702.5 1165.9,706.0 1153.1,675.5 1076.5,675.5 1076.5,675.4 1076.5,493.1 1038.9,403.5 1012.4,415.4 987.0,426.8 938.5,448.7 946.0,476.8 668.0,594.2 543.9,592.5 64.9,815.2 64.7,829.1 28.8,949.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0019__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[657.0,1438.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57756585068027,34.193244241787205]}},{"type":"Feature","properties":{"resourceCoords":[1544.0,1438.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57368384194456,34.19323212039582]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"66.3,1619.4 81.7,1835.7 598.6,1863.7 1152.2,1710.8 1426.2,1800.8 1448.0,1866.8 1459.8,1823.8 1449.3,118.7 694.0,119.3 693.9,63.7 147.0,9.2 150.2,488.4 155.0,1235.5 149.5,1314.2 111.4,1631.6 1.0,1587.7 1.0,1608.7 66.3,1619.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[684.0,1261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57537794535068,34.20399696737559]}},{"type":"Feature","properties":{"resourceCoords":[684.0,121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57292834273696,34.20449327959184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p21","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,111.7 1612.0,113.4 1571.4,119.2 1581.0,867.0 1581.0,1401.0 1584.6,1912.0 1557.1,1912.0 1550.6,1872.7 1143.3,1842.5 679.9,1892.7 163.3,1868.8 119.1,1808.2 129.4,1300.7 45.7,980.9 22.6,440.7 81.6,147.2 186.4,104.8 186.4,46.1 215.3,101.2 281.3,41.7 515.2,34.7 768.0,179.4 893.5,185.8 1432.9,38.1 1612.0,107.7 1612.0,111.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1581.0,867.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5401885,34.2176508]}},{"type":"Feature","properties":{"resourceCoords":[1581.0,1401.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5403359,34.2166691]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1465.4,93.5 1508.2,1537.5 1474.8,1537.0 1472.6,1854.1 1415.7,1835.5 658.5,1880.5 388.5,1774.3 96.2,1791.6 97.3,84.8 822.7,85.7 861.8,87.0 1170.6,91.7 1356.2,91.7 1465.4,93.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[861.0,655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5733296,34.2015258]}},{"type":"Feature","properties":{"resourceCoords":[97.0,1223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5749599,34.2026261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.5,1450.1 163.9,1455.9 359.2,40.0 365.9,41.2 806.6,47.5 1448.2,41.8 1463.0,1616.4 1580.8,1616.3 1490.1,1808.7 1287.2,1871.2 819.1,1793.2 212.9,1830.1 77.3,1759.1 131.5,1450.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[805.0,607.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57255902568004,34.199530186078924]}},{"type":"Feature","properties":{"resourceCoords":[1465.0,268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57127298609844,34.19866539330884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p5 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"260.0,1790.0 533.8,1737.1 632.4,1719.1 1612.0,197.8 1612.0,108.2 1407.0,401.9 1211.6,274.9 1209.5,210.2 627.2,125.0 627.0,101.0 315.7,107.9 66.0,110.2 65.0,417.7 67.3,602.5 66.8,718.1 139.5,1155.7 260.0,1790.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[627.0,101.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5709053,34.2020343]}},{"type":"Feature","properties":{"resourceCoords":[260.0,1790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5708254,34.1988618]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p5 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.27"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3920.0"},{"label":"split_canvas_y","value":"5910.0"},{"label":"split_canvas_w","value":"2532.0"},{"label":"split_canvas_h","value":"1742.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1636.8 1612.0,1607.9 1560.1,1623.6 1525.5,1566.3 1043.4,1551.2 1015.2,1776.5 1612.0,1636.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1621.0,1819.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.563506,34.2044064]}},{"type":"Feature","properties":{"resourceCoords":[1109.0,1819.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5646832,34.2043902]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p6","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1427.9,1896.7 265.7,1858.3 240.4,1911.6 119.5,1911.4 108.0,296.0 105.2,11.8 204.5,33.2 370.2,59.0 650.0,68.2 1501.0,41.5 1506.8,1391.1 1506.8,1669.3 1509.9,1853.6 1517.2,1885.8 1427.9,1896.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1505.0,967.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5709329,34.1960721]}},{"type":"Feature","properties":{"resourceCoords":[108.0,296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5708254,34.1988618]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1166.7,1666.4 663.7,1725.1 485.0,1878.8 169.8,1909.8 163.3,1877.8 164.4,1695.3 170.9,1419.9 196.3,83.6 1050.9,59.1 1385.8,51.5 1363.3,1309.7 1342.2,1551.0 1382.6,1551.7 1166.7,1666.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[177.0,1150.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.57123324113303,34.195959209871965]}},{"type":"Feature","properties":{"resourceCoords":[1044.0,869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.569863418621,34.19474938819246]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.2,1764.9 99.8,1758.1 285.7,1850.4 331.8,1757.4 530.8,1756.8 631.3,1665.5 627.8,1645.4 627.9,1645.4 666.3,1633.8 1377.8,1510.9 1378.2,1494.6 1442.5,1495.5 1515.5,93.5 1424.3,40.0 615.2,19.2 71.7,80.5 36.4,55.5 40.2,265.9 121.7,265.9 72.2,1522.7 45.9,1763.4 86.2,1764.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[87.0,657.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.5687216344972,34.19455913965915]}},{"type":"Feature","properties":{"resourceCoords":[87.0,280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.56797874328694,34.194864135777074]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clarksdale, Mississippi | 1923 | sanborn04442_008 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.42"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T00:55:47Z","modified":"2026-10-20T00:55:47Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1230.2,1714.5 1200.0,1629.1 1420.9,934.5 1381.9,918.1 1546.0,526.6 1612.0,361.4 1612.0,139.0 1461.4,43.5 1189.6,139.0 866.8,63.5 282.0,79.7 197.7,139.0 101.8,86.4 64.0,1491.8 1.0,1492.9 1.0,1493.3 97.5,1533.9 149.9,1754.7 270.1,1793.8 612.0,1845.5 811.5,1765.7 1230.2,1714.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd398m:g3984m:g3984cm:g3984cm_g044421923:04442_1923-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.56613571552835,34.19292203154948]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.56465041182318,34.19024581576885]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.56846066824174,34.18877843307214]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.56994597194691,34.19145464885277]}}]}}]}