{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08291_020.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chattanooga, Tennessee | 1955 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"90"},{"label":"placed","value":"73"},{"label":"unplaced","value":"17"},{"label":"fit sources","value":"georef-snap 54, georef 15, snap:0 3, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"13 sheet(s) cut into 28 panels"},{"label":"unplaced pages","value":"p628__1 (tier 1, 35.06352,-85.30600 +/-163m); p639__2 (tier 1, 35.06515,-85.31620 +/-114m); p640__1 (tier 3, 35.10079,-85.34066 +/-834m); p640__2 (tier 3, 35.10079,-85.34066 +/-834m); p645__2 (tier 1, 35.08156,-85.29264 +/-100m); p645__3 (tier 1, 35.08159,-85.29418 +/-110m); p645__4 (tier 1, 35.08107,-85.29204 +/-116m); p649__2 (tier 1, 35.07003,-85.30473 +/-100m); p650__1 (tier 4, 35.07997,-85.30472 +/-7028m); p650__2 (tier 4, 35.07997,-85.30472 +/-7028m); p653__1 (tier 1, 35.12225,-85.34425 +/-100m); p666 (tier 3, 35.08096,-85.31569 +/-2739m); p667 (tier 1, 35.06808,-85.29829 +/-254m); p668__2 (tier 1, 35.07194,-85.31920 +/-177m); p669 (tier 3, 35.07707,-85.31959 +/-100m); p670 (tier 3, 35.08361,-85.30730 +/-834m); p671__2 (tier 1, 35.08593,-85.31517 +/-222m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0601/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p601","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0601/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0601","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1611.3,1540.0 1614.4,1710.5 1197.6,1838.7 1228.9,1804.5 756.8,1740.6 715.9,1788.5 610.1,1714.3 536.9,1676.7 476.0,1666.3 196.9,1670.5 116.3,1673.7 123.0,647.7 76.9,647.4 75.9,122.8 117.5,126.3 397.1,124.8 872.0,129.3 1417.6,127.3 1415.6,333.5 1437.4,417.5 1600.2,686.5 1608.0,774.1 1605.6,1132.0 1608.2,1369.2 1608.5,1415.4 1611.3,1540.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0601/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[872.0,137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31201925837169,35.06700763206423]}},{"type":"Feature","properties":{"resourceCoords":[96.0,657.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31303989390423,35.06849808939249]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0602/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p602","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0602/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0602","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1590.7,263.4 1602.2,646.2 1616.7,1248.0 1649.0,1325.2 1649.0,1354.1 1649.0,1370.5 1620.5,1376.2 1567.3,1725.8 1212.7,1702.5 756.7,1790.1 95.8,1702.8 82.7,1630.3 62.4,1632.0 232.2,1027.4 80.8,882.1 90.9,871.4 120.8,105.5 180.6,103.1 457.8,99.1 518.2,109.5 590.9,146.8 696.0,220.6 736.7,173.0 1205.5,236.7 1174.4,270.6 1588.6,143.4 1590.7,263.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0602/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[651.0,1428.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31837070467338,35.06779050908642]}},{"type":"Feature","properties":{"resourceCoords":[651.0,824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3170160382949,35.067702652312356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0603/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p603","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0603/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0603","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"304.1,1776.6 133.2,1717.5 52.9,1178.0 134.0,813.1 92.2,235.0 166.3,120.4 181.8,134.1 326.9,103.5 412.2,54.3 1559.4,66.8 1602.5,791.2 1565.7,790.5 1567.0,1077.5 1561.5,1566.2 1557.8,1836.9 1288.8,1819.2 734.2,1807.6 733.9,1828.5 303.8,1799.2 304.1,1776.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0603/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[734.0,590.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30937002036622,35.077166100554074]}},{"type":"Feature","properties":{"resourceCoords":[1296.0,1557.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30823862714033,35.07532963642865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0604/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p604","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0604/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0604","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1406.2,1753.6 1183.5,1747.2 1182.2,1819.2 621.2,1810.4 246.0,1802.0 253.1,1119.7 222.8,1120.1 234.9,119.9 668.5,148.7 668.8,127.6 1227.7,138.3 1498.9,155.7 1496.2,380.9 1501.9,876.5 1463.0,875.9 1455.2,1755.0 1406.2,1753.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0604/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[242.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31061887150716,35.073145827248126]}},{"type":"Feature","properties":{"resourceCoords":[1184.0,1800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30861347720102,35.0718278958229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0605/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p605","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0605/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0605","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1433.5,1662.1 1436.8,1824.0 1149.9,1837.2 1149.9,1872.2 621.1,1765.2 621.2,1784.3 223.1,1773.8 220.7,1041.1 230.3,168.6 600.5,171.1 1154.0,171.0 1154.2,99.9 1374.0,102.8 1457.3,103.9 1448.4,347.6 1440.2,1170.5 1433.5,1662.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0605/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1154.0,171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3086201,35.0717931]}},{"type":"Feature","properties":{"resourceCoords":[620.0,171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3098233,35.071869]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0606/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p606","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0606/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0606","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1365.2,1906.0 1077.8,1813.4 847.7,1744.5 703.0,1721.8 304.3,1722.6 52.8,1721.7 44.3,1186.3 43.1,720.2 38.4,445.9 41.4,405.1 383.5,397.6 388.0,97.0 783.2,101.7 782.8,82.7 1309.0,181.2 1308.5,146.4 1593.0,129.2 1601.5,375.4 1611.5,1166.3 1612.0,1194.3 1325.2,1183.3 1411.9,1863.9 1414.3,1909.3 1365.2,1906.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0606/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[388.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.310996,35.0689698]}},{"type":"Feature","properties":{"resourceCoords":[786.0,385.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3101534,35.0683674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0607/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p607","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0607/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0607","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1416.8,729.9 1198.9,1635.5 1251.1,1657.2 1180.6,1784.3 1076.0,1972.8 1059.7,2002.3 962.5,1948.6 198.5,1557.7 147.7,1557.2 149.2,1532.5 150.8,1212.6 145.4,723.8 123.1,197.7 116.9,74.3 853.0,70.4 949.8,83.2 960.7,110.6 1573.2,48.8 1592.2,326.2 1616.7,331.2 1625.5,731.0 1416.8,729.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0607/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[144.0,1230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30328560696049,35.069550802241395]}},{"type":"Feature","properties":{"resourceCoords":[144.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30216661907365,35.06948642970684]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0608/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p608","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0608/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0608","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1473.8,617.0 1131.4,464.8 1134.1,278.4 1067.9,400.3 1052.1,429.4 956.0,377.6 204.1,1.0 152.1,1.0 141.5,196.2 134.5,366.7 147.2,372.2 152.3,1109.3 153.7,1109.2 122.4,1817.0 609.0,1822.6 1014.8,1813.8 1503.0,1813.8 1363.6,1268.9 1418.5,1286.1 1476.6,617.5 1473.8,617.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0608/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[136.0,1065.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30643965773326,35.0697731568415]}},{"type":"Feature","properties":{"resourceCoords":[997.0,1810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30829035445977,35.06827893169791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0609/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p609","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0609/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0609","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"245.3,1649.7 196.0,1405.6 193.1,1359.3 97.0,665.5 389.8,673.5 389.1,644.9 381.8,337.1 935.9,181.3 919.6,237.9 1605.3,281.3 1598.3,322.9 1601.5,805.1 1609.7,1239.1 1607.0,1461.8 1577.5,1696.8 1563.8,1759.7 1558.9,1782.3 1517.6,1781.1 852.6,1816.0 298.2,1853.2 245.3,1649.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0609/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30782632122319,35.064608219163254]}},{"type":"Feature","properties":{"resourceCoords":[384.0,672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30846138392599,35.066728291140514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0610/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p610","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0610/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0610","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"369.5,1831.8 618.6,1825.0 618.9,1831.2 1112.1,1824.2 1149.0,1838.5 1333.5,1821.1 1448.3,1819.5 1456.3,1809.6 1533.3,1308.1 1530.3,449.8 1526.6,243.3 625.8,48.9 605.5,100.9 478.1,34.1 415.0,1.0 225.0,1.0 77.2,347.0 69.5,390.6 68.5,865.0 72.7,1292.0 68.1,1511.0 37.0,1741.9 23.1,1803.6 18.8,1822.8 236.2,1981.6 236.2,1913.3 369.6,1827.0 369.5,1831.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0610/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[610.0,1089.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30461512011492,35.06575133709556]}},{"type":"Feature","properties":{"resourceCoords":[610.0,110.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30440769048148,35.067560419215354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0611/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p611","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0611/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0611","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"273.2,1145.2 315.0,1155.5 309.2,1077.4 274.6,907.7 196.7,650.4 138.7,446.2 47.5,140.3 589.7,109.0 1239.9,81.0 1280.3,82.5 1281.0,79.5 1497.0,237.3 1497.7,902.3 1426.4,1052.0 1355.9,1242.7 1444.7,1267.0 1567.8,1716.4 1402.8,1731.8 895.1,1888.1 612.6,1892.7 396.0,1825.9 133.3,1886.7 110.2,1794.6 268.9,1475.2 272.2,1199.2 262.4,1195.8 273.2,1145.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0611/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1350.0,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30619639320145,35.06231617783581]}},{"type":"Feature","properties":{"resourceCoords":[1295.0,85.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30607490209643,35.064485162743416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0612/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p612","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0612/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0612","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.3,1260.9 15.3,1231.5 96.8,1043.6 176.7,897.0 216.3,160.0 354.4,81.2 354.0,86.0 603.3,92.8 603.3,99.0 1096.4,119.3 1132.5,135.5 1317.7,128.4 1432.7,133.1 1441.2,123.6 1460.6,31.4 1548.0,518.5 1514.8,548.1 1429.1,1789.4 1244.1,1778.3 1237.0,1882.8 945.9,1923.8 446.0,1797.5 333.6,1714.5 202.4,1719.6 103.3,1260.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0612/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1013.0,1693.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30396357579521,35.06139474168418]}},{"type":"Feature","properties":{"resourceCoords":[1523.0,107.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3026703288665,35.064297906569685]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0613/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p613","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0613/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0613","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"444.7,1832.0 753.4,1810.8 1051.2,1799.0 1350.5,1782.7 1406.8,1780.6 1347.6,1385.7 1200.5,1275.5 1217.0,971.0 1236.8,692.9 1324.4,563.1 1518.7,82.8 691.0,17.9 683.2,1.0 681.1,1.0 398.8,172.9 128.0,374.7 56.4,429.8 287.2,621.4 296.0,1055.0 299.4,1429.8 324.2,1840.2 444.7,1832.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0613/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1217.0,971.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2987577,35.0709336]}},{"type":"Feature","properties":{"resourceCoords":[296.0,1055.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3008781,35.0709285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0614/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p614","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0614/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0614","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"285.6,1779.3 237.4,1384.5 94.0,1270.9 118.7,968.1 145.9,691.8 236.7,565.0 443.2,92.0 582.1,106.8 710.4,179.2 808.9,257.1 915.7,321.9 1077.0,455.8 1169.9,554.0 1219.5,641.4 1395.3,986.7 1633.0,1650.2 1641.7,1674.6 835.8,1703.7 844.1,1677.5 662.5,1699.4 640.6,1753.7 517.8,1777.1 285.6,1779.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0614/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1180.0,567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2962630036922,35.071566718156845]}},{"type":"Feature","properties":{"resourceCoords":[60.0,862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2988777388617,35.07113991347246]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0615/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p615","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0615/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0615","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1404.2,1668.7 912.5,1708.2 850.8,1787.7 765.1,1899.5 724.7,1952.3 540.2,1797.2 513.1,1779.2 499.6,1806.1 276.1,1580.6 210.0,964.2 237.3,953.1 249.5,856.5 241.0,122.2 555.9,104.3 859.7,95.8 1164.9,82.7 1459.9,75.2 1466.0,154.6 1459.3,468.1 1449.5,580.2 1487.9,697.4 1492.8,779.2 1472.2,1101.5 1462.3,1404.4 1455.1,1459.0 1414.0,1531.9 1404.2,1668.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0615/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1466.0,673.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29804266271654,35.06826867682499]}},{"type":"Feature","properties":{"resourceCoords":[243.0,102.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30068703094453,35.069488439911034]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0616/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p616","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"25"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0616/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0616","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1042.0,1609.0 577.3,1855.6 575.2,1803.8 70.2,1800.6 71.4,1743.4 108.3,1669.3 112.7,1614.9 107.2,1314.7 111.3,994.9 102.4,914.1 58.5,800.2 62.5,688.9 53.3,378.3 43.3,300.0 166.1,268.1 184.5,211.7 366.8,177.3 360.1,204.3 1173.6,120.5 1266.1,333.0 1448.0,750.9 1478.2,947.4 1505.5,1094.5 1515.9,1241.6 1446.2,1348.7 1042.0,1609.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0616/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1042.0,1609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.296082,35.0667185]}},{"type":"Feature","properties":{"resourceCoords":[1016.0,1019.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2959705,35.0678121]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0617/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p617","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0617/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0617","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"229.8,1862.2 126.2,1376.0 199.5,967.0 217.3,104.4 617.7,95.5 622.8,71.1 900.5,52.2 901.1,58.0 1124.0,284.0 1137.7,257.3 1164.8,275.4 1348.9,431.2 1389.8,378.8 1393.1,374.6 1402.5,412.1 1508.3,832.5 1444.2,914.7 1225.3,1859.3 756.1,1796.5 752.2,1801.6 285.2,1801.0 261.1,1832.6 229.8,1862.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0617/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30287122223734,35.066993374831945]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2991840664946,35.066780158518476]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29949917446454,35.06307781466677]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30318633020728,35.06329103098024]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0618/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p618","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0618/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0618","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.1,1821.3 68.3,1934.0 331.8,926.8 397.4,847.1 297.4,389.4 382.8,285.9 446.7,209.6 934.3,188.2 942.8,110.1 1445.1,157.2 1442.7,209.0 1440.7,232.6 1129.8,859.0 1169.6,862.5 1350.1,1483.2 1346.5,1569.2 1190.1,1695.6 1214.1,1759.3 1116.5,1755.8 1033.3,1826.0 218.1,1821.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0618/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[356.0,299.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29967552430836,35.06628705805114]}},{"type":"Feature","properties":{"resourceCoords":[1392.0,1537.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29743504353141,35.06390886337504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0619/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p619","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0619/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0619","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1320.8,1814.3 1299.5,1094.5 1133.1,1285.4 1053.5,1383.3 996.8,1474.4 994.4,1392.5 1089.1,1269.4 1185.1,1155.4 1218.1,689.9 1347.3,586.4 1372.6,140.1 1363.9,140.7 1217.7,266.6 1233.1,186.5 755.0,139.3 751.2,144.6 277.7,160.9 254.4,194.0 191.9,258.1 190.2,1535.1 1.0,1536.6 1.0,1643.8 64.5,1630.4 146.9,1839.3 713.1,1869.1 1292.2,1807.4 1320.8,1814.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0619/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,1021.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30164103179737,35.06199960352931]}},{"type":"Feature","properties":{"resourceCoords":[218.0,824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30280246057872,35.06245893616129]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0620/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p620","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.50"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0620/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0620","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"310.8,1756.3 661.5,1853.3 1086.5,1880.3 1498.0,1826.8 1513.5,1543.7 1550.2,1541.8 1496.4,347.5 1527.6,370.7 1572.4,373.2 1417.1,1.0 1315.9,1.0 1234.8,74.6 412.2,99.5 373.8,540.8 242.7,639.4 196.1,1099.5 97.5,1209.6 1.0,1327.5 1.0,1408.4 58.9,1321.3 140.7,1226.8 311.2,1042.6 310.8,1756.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0620/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1512.0,407.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29771627095218,35.06275556513412]}},{"type":"Feature","properties":{"resourceCoords":[1512.0,1532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2979063283359,35.060709815260296]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0621/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p621","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0621/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0621","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1273.7,177.8 1273.5,301.8 1275.6,855.9 1285.6,990.0 1376.6,1509.6 1428.6,1769.1 1352.3,1729.7 715.6,1631.4 695.7,1665.8 260.7,1121.2 240.2,1109.5 258.9,586.0 235.7,107.9 277.2,156.8 335.1,187.4 388.2,200.3 485.9,204.5 589.5,160.3 744.1,29.4 749.0,155.1 1273.5,145.3 1273.7,177.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0621/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[761.0,598.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29566530858864,35.065845469120305]}},{"type":"Feature","properties":{"resourceCoords":[1245.0,598.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29523931853933,35.06501218024664]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0622/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p622","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0622/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0622","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1571.5,1483.3 1033.7,1403.4 1004.2,1466.2 876.2,1681.2 795.7,1816.5 333.6,1776.8 286.9,1581.5 237.1,1321.0 150.6,799.7 141.7,665.3 144.5,110.2 619.6,109.2 619.9,85.5 1506.3,68.9 1483.0,235.3 1560.0,331.4 1602.7,727.9 1585.3,1429.7 1595.6,1436.0 1571.5,1483.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0622/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[612.0,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2965582,35.0635384]}},{"type":"Feature","properties":{"resourceCoords":[1115.0,690.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2949334,35.0630891]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p623 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"159.4,316.0 153.1,953.2 139.8,953.1 160.9,990.2 167.1,1111.8 176.5,1785.4 177.5,1838.7 659.6,1752.5 661.8,1946.8 687.0,1946.6 665.2,1155.3 713.5,1073.7 922.3,1095.5 1399.1,992.0 1326.9,939.6 1367.5,722.8 1295.5,592.8 1341.3,401.4 1197.0,296.8 1237.5,79.9 722.1,105.8 590.8,45.9 157.8,209.7 159.4,316.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[652.0,1053.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2896552,35.0658953]}},{"type":"Feature","properties":{"resourceCoords":[160.0,465.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2888277,35.06716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p623 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2805.2"},{"label":"split_canvas_y","value":"4363.2"},{"label":"split_canvas_w","value":"3794.8"},{"label":"split_canvas_h","value":"3676.8"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1636.1,2009.0 1649.0,2009.0 1648.5,1385.2 1641.1,1097.3 1603.5,1091.2 1603.2,1091.2 1599.7,1091.2 729.0,1421.7 851.2,1481.5 901.5,1506.0 1280.5,1703.5 1466.8,1795.8 1517.3,1842.0 1603.3,1952.7 1636.1,2009.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0623__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1306.1,1718.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28952726173875,35.067643373344985]}},{"type":"Feature","properties":{"resourceCoords":[896.2,1499.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28939861483683,35.06852482536315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p624 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.3,1759.1 1540.0,1679.3 1478.2,1620.6 1191.1,1624.0 1124.7,1539.3 765.1,1527.3 682.8,1387.8 683.9,539.0 658.3,538.6 661.9,341.3 172.2,417.1 166.4,943.8 166.2,1058.4 160.0,1673.6 157.8,1799.2 635.9,1798.7 636.3,1774.8 1528.3,1759.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__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":[-85.29101993934668,35.06677088204901]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28954477899293,35.063964566343266]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29369216401098,35.06248332566398]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29516732436473,35.06528964136973]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p624 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.22"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3146.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3453.2"},{"label":"split_canvas_h","value":"6092.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1602.3,757.3 1549.8,751.4 1435.8,221.4 1367.0,216.0 1121.6,171.9 924.2,136.4 896.7,110.3 807.5,1273.5 1052.5,1291.0 1105.5,1394.6 1184.8,1398.2 1233.4,1125.9 1538.3,1089.3 1602.3,757.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0624__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[755.7,1291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2979395,35.0606495]}},{"type":"Feature","properties":{"resourceCoords":[921.6,136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2976815,35.06282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0625/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p625","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0625/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0625","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"352.0,1062.0 294.2,1163.1 216.2,1322.8 177.8,1487.5 193.8,1653.2 246.3,1811.0 288.1,1907.8 299.3,1927.2 1218.0,1556.0 1368.7,1559.3 1495.1,1581.9 1518.7,1583.2 1504.5,1028.2 1470.7,1021.7 1474.1,820.0 1501.1,812.4 1358.0,516.2 1377.4,506.0 1649.0,344.1 1649.0,158.3 1281.2,225.0 737.0,151.8 744.0,198.3 310.5,272.9 338.2,395.9 1.0,457.0 1.0,653.0 352.0,1062.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0625/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29808138051047,35.07613282646397]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29492174369865,35.074539061836916]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29727738765821,35.071366749612466]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30043702447003,35.07296051423952]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0626/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p626","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0626/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0626","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"538.8,1763.1 751.0,1746.2 888.3,1751.9 986.4,1780.3 1359.0,1907.1 1396.8,1846.2 1620.2,1552.3 1576.7,1511.2 1580.0,1277.3 1547.9,1195.5 1519.8,1058.3 1543.7,743.9 1555.5,693.7 1574.8,644.6 1589.5,625.8 1596.5,147.0 1555.8,148.3 1219.3,164.8 1134.1,209.8 181.9,115.7 140.1,381.2 164.4,387.9 161.2,389.4 213.5,566.8 1.0,795.0 1.0,829.6 204.2,1054.8 180.6,1069.5 234.1,1263.1 268.2,1260.0 437.9,1786.2 538.8,1763.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0626/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[931.0,1740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29619933070616,35.07154849975689]}},{"type":"Feature","properties":{"resourceCoords":[1190.0,170.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29317264836564,35.07315255487624]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0627/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p627","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0627/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0627","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"348.9,1414.4 281.1,1347.0 106.2,502.9 682.1,230.0 702.3,112.5 1144.4,289.8 1232.8,120.8 1309.2,168.2 1582.5,927.1 1461.8,1121.4 1413.8,1261.2 1394.7,1452.1 1306.2,1537.2 1258.6,1626.5 1154.5,1596.9 782.3,1829.8 832.5,1909.4 522.1,1638.0 440.9,1665.0 348.9,1414.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0627/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[398.0,1421.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29301130812759,35.07314639523224]}},{"type":"Feature","properties":{"resourceCoords":[559.0,1511.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29259143766517,35.07312075884501]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0628__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p628 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"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":"6600.0"},{"label":"split_canvas_h","value":"5601.2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0628__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0628","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1180.3,1316.8 1166.8,1360.9 1230.8,1366.1 1450.7,1360.0 1465.6,1164.4 1489.4,40.9 1413.2,52.1 981.1,129.2 304.4,211.3 322.5,288.4 409.6,462.5 379.3,583.4 386.6,685.9 280.5,716.7 85.1,1117.9 179.3,1162.5 328.7,1204.2 418.8,1214.8 535.1,1215.8 1180.3,1316.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0628__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":[-85.29169664614076,35.07481896691984]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28803762401736,35.074436430628865]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,1400.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28843143605117,35.07187762747036]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1400.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29209045817457,35.072260163761335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0629/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p629","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0629/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0629","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"851.6,1490.4 887.0,1668.6 1542.7,1847.0 1596.7,1381.3 1516.0,1383.4 1273.4,1136.0 1342.3,1128.3 1391.9,818.4 1523.3,815.7 1216.6,38.8 665.5,366.6 576.9,438.6 502.2,487.0 363.1,549.0 355.1,551.1 1.0,761.6 1.0,847.8 67.4,845.3 107.7,844.5 92.0,1319.3 77.2,1337.8 66.1,1364.6 537.2,1554.2 759.8,1502.0 834.5,1483.4 851.6,1490.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0629/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29127924449138,35.073854738095164]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28871017287395,35.07159564019446]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29204918128379,35.06901624446375]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29461825290122,35.07127534236445]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0630/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p630","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0630/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0630","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"355.9,1227.0 221.3,1226.2 164.5,1542.0 93.8,1548.0 337.3,1807.5 804.3,1807.8 1487.8,1801.2 1449.5,1756.9 1280.4,1560.6 1133.8,1388.0 1162.4,1338.4 1231.1,1219.3 1250.6,1185.5 1277.8,1129.3 1330.2,1021.1 1362.1,960.2 1370.0,945.4 1373.2,937.5 706.0,229.8 642.9,321.4 339.3,1.0 90.6,1.0 186.0,126.8 296.7,290.5 125.4,433.7 74.2,467.7 355.9,1227.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0630/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1094.0,384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28776489244548,35.07083764452893]}},{"type":"Feature","properties":{"resourceCoords":[976.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28929319011678,35.06991313626055]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0631/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p631","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0631/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0631","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"471.7,684.6 536.6,553.5 587.0,414.1 659.5,230.8 929.0,246.0 1271.3,245.3 1550.0,244.8 1539.7,561.4 1649.0,688.6 1649.0,816.8 1516.5,928.2 1546.3,962.2 1560.0,1381.8 1569.5,1393.2 1557.2,1760.0 1571.0,1776.0 999.9,1774.7 887.2,1775.5 314.7,1774.7 308.2,1252.2 433.5,1248.2 304.1,1093.5 260.6,990.0 265.4,892.7 278.6,839.9 309.4,782.4 358.4,741.4 471.7,684.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0631/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[929.0,246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2943392,35.0683759]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,1776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2916144,35.0662094]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0632/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p632","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0632/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0632","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"642.1,243.7 672.5,271.9 700.6,343.9 687.9,167.1 1140.7,62.0 1272.8,410.7 1514.2,1028.2 1298.2,1404.2 1196.9,1589.0 1148.0,1638.3 1032.2,1720.9 936.2,1771.5 815.4,1774.0 146.2,1763.1 132.6,1747.1 148.5,1382.3 139.2,1370.9 129.8,953.3 100.5,919.1 233.4,809.6 234.7,682.1 127.2,554.5 140.6,239.6 642.1,243.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0632/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[851.0,748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29106533975512,35.06849343830629]}},{"type":"Feature","properties":{"resourceCoords":[1508.0,1047.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28940422251561,35.068473852963294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0633/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p633","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0633/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0633","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"313.8,1124.8 1.0,1877.6 1.0,1916.5 48.2,1908.0 392.9,1850.8 744.6,1825.5 798.4,1733.0 895.4,1594.8 1020.9,1481.8 1178.5,1413.7 1356.0,1381.0 1473.4,1367.0 1595.7,832.1 1649.0,792.7 1649.0,615.6 1548.6,521.2 1542.6,503.4 1464.1,272.7 1280.8,31.9 1256.8,158.7 736.3,107.7 443.2,813.2 450.7,848.1 326.0,1127.8 313.8,1124.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0633/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3028071575927,35.07541875029699]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29942446111373,35.076547441193576]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29775620923277,35.07315118333094]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30113890571174,35.07202249243436]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p634 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"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":"0.0"},{"label":"split_canvas_w","value":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"508.0,1064.4 456.3,1063.2 453.2,1296.9 269.6,1779.5 491.5,1778.3 973.0,1768.0 1491.2,1740.7 1469.3,1327.3 1468.7,949.9 1463.2,513.2 1232.1,318.5 1253.6,302.3 1234.5,34.7 735.4,752.3 749.1,782.3 612.5,942.1 589.6,938.6 541.5,1065.1 509.4,1064.4 508.0,1064.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1008.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3018809,35.071432]}},{"type":"Feature","properties":{"resourceCoords":[973.0,1768.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.302153,35.0694831]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p634 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"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":"3617.6"},{"label":"split_canvas_h","value":"4156.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"146.3,1038.0 145.1,1026.6 457.4,950.4 843.3,125.1 534.1,97.4 7.0,101.2 109.5,1038.0 146.3,1038.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0634__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":[-85.32183259299025,35.060226405397195]}},{"type":"Feature","properties":{"resourceCoords":[904.4,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.32149931122996,35.05941718780178]}},{"type":"Feature","properties":{"resourceCoords":[904.4,1039.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.32262756664667,35.05910142303413]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1039.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.32296084840695,35.059910640629546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0635/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p635","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0635/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0635","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"327.5,439.2 679.1,539.7 701.4,484.7 918.5,403.6 982.4,344.5 1098.9,269.2 1397.7,178.0 1448.2,170.8 1471.6,170.9 1472.5,679.5 1604.0,865.9 1649.0,928.0 1649.0,946.5 1497.6,1047.0 1599.0,1899.3 1567.4,1828.3 1535.5,1801.3 752.6,1831.4 410.2,1844.6 140.2,1839.1 177.8,1388.3 198.9,1133.1 257.7,426.4 327.5,439.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0635/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[687.0,534.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29482162191641,35.070852397075676]}},{"type":"Feature","properties":{"resourceCoords":[1658.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29241597040621,35.07079536351531]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0636/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p636","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0636/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0636","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1299.9,1876.4 824.0,1824.3 714.8,1866.2 564.7,1843.4 284.3,1890.9 111.2,1888.7 85.9,1853.5 49.4,1848.3 109.3,1635.5 147.3,1614.5 205.3,1348.5 192.8,1338.9 200.6,1311.1 190.4,1309.7 323.5,1174.6 349.8,1164.3 295.9,829.6 246.8,761.6 239.1,757.2 202.0,286.4 225.3,276.4 232.7,205.6 271.3,214.3 472.9,123.2 662.5,107.2 715.5,189.6 753.2,248.3 811.1,338.3 863.0,419.0 766.3,487.1 1342.8,514.7 1351.5,539.8 1352.0,541.0 715.2,640.8 717.4,644.2 737.8,676.9 765.7,721.6 778.2,742.1 813.7,799.9 1454.9,823.2 1455.7,829.3 1461.5,878.4 1414.0,985.9 1405.9,996.7 1383.1,1361.3 1406.7,1371.0 1452.8,1381.1 1402.0,1504.4 1398.5,1513.0 1373.3,1838.8 1349.0,1870.8 1299.9,1876.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0636/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[903.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3563293,35.1238527]}},{"type":"Feature","properties":{"resourceCoords":[863.0,419.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3570321,35.1257184]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0637/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p637","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.37"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0637/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0637","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"244.3,762.3 214.4,762.2 190.0,688.7 68.6,302.1 49.0,263.6 287.3,266.1 646.6,276.2 734.8,270.2 1008.5,112.5 1093.3,92.4 1300.4,98.9 1557.6,108.5 1558.5,575.9 1548.5,1003.4 1559.7,1010.3 1517.2,1805.1 1458.5,1815.8 1388.4,1886.7 1035.5,1818.2 453.3,1889.2 321.1,1785.5 298.4,1703.4 244.3,762.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0637/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3149696,35.0663287]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3113053,35.0661542]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.31156510000001,35.0625005]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3152294,35.062675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0638/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p638","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0638/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0638","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.1,939.2 88.0,932.8 86.2,516.2 72.8,61.1 470.4,62.6 614.6,86.0 843.6,156.1 1129.7,250.0 1178.7,253.6 1222.9,492.7 1271.2,692.4 1360.1,998.7 1416.6,1203.2 1492.6,1461.0 1525.9,1630.8 1531.1,1709.0 1489.4,1698.3 1478.2,1748.8 1211.4,1653.0 427.9,1640.7 79.2,1714.3 99.1,939.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0638/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[730.0,1284.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31026861003669,35.06358405757647]}},{"type":"Feature","properties":{"resourceCoords":[620.0,187.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31030403660131,35.06564459618231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0639__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p639 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.52"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0639__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0639","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.5,1841.4 690.8,1749.0 724.4,1413.0 792.9,1311.4 1533.3,1276.9 1587.0,1154.2 1584.2,790.8 1469.5,765.4 1444.8,124.4 1464.4,119.7 558.0,143.7 557.0,172.5 519.8,183.6 485.6,193.8 110.4,299.0 72.8,316.8 70.8,361.3 67.2,481.7 57.6,763.0 49.5,1135.5 33.3,1720.7 60.8,1797.3 58.5,1841.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0639__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[572.0,166.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31457789799708,35.06489188767351]}},{"type":"Feature","properties":{"resourceCoords":[87.0,924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31629988331612,35.065848851283505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0641/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p641","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0641/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0641","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1574.8,1346.8 1564.4,1400.8 1530.9,1413.5 1506.7,1648.7 1478.2,1701.7 1361.5,1706.0 1332.3,1835.4 1293.9,1869.6 1079.0,1872.0 882.7,1802.7 697.7,1792.2 605.6,1874.3 119.6,1843.1 82.7,1724.5 76.5,1603.1 384.6,866.5 393.6,843.5 388.3,836.8 402.6,782.5 396.6,723.0 383.2,682.7 386.4,655.5 361.9,658.8 413.5,136.6 396.7,117.2 405.7,71.4 432.6,23.5 494.1,47.9 528.2,53.7 583.3,40.6 584.1,44.0 744.3,78.2 739.5,91.0 740.0,110.7 1353.7,65.1 1361.9,84.6 1364.8,141.7 1357.2,190.7 1346.0,211.7 1376.2,856.8 1373.6,856.7 1368.2,989.7 1305.2,986.4 1498.2,1326.5 1579.3,1346.8 1574.8,1346.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0641/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[381.0,142.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29679406855972,35.08253765199853]}},{"type":"Feature","properties":{"resourceCoords":[942.0,1032.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30068021480226,35.08027180206613]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0642/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p642","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0642/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0642","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"957.4,1733.5 849.7,1907.9 852.8,1858.5 383.3,1836.4 304.1,1812.8 128.4,1468.9 190.3,1474.9 201.4,1343.8 203.9,1344.1 201.9,706.1 213.9,685.9 223.6,637.9 223.1,581.5 206.9,537.9 201.4,528.1 185.4,499.8 163.0,474.4 128.0,451.4 170.5,166.9 412.9,188.1 606.7,192.7 870.5,195.2 1009.2,122.0 1216.1,87.5 1438.4,313.3 1400.9,335.8 1462.4,453.3 1474.0,448.8 1389.9,613.3 1199.3,803.4 1219.7,814.5 1119.9,1005.2 1176.4,1030.9 1037.9,1301.9 1030.4,1307.1 933.8,1374.5 846.6,1491.8 909.0,1485.8 956.2,1733.3 957.4,1733.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0642/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29427501871818,35.07750549816803]}},{"type":"Feature","properties":{"resourceCoords":[391.0,1346.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29969837436742,35.07799956636698]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0643/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p643","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.32"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0643/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0643","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1538.0,305.4 1564.8,319.5 1618.9,331.9 1601.9,362.8 1538.3,433.2 1526.2,462.6 1444.0,758.9 1434.9,806.8 1436.2,851.5 1455.9,897.7 1538.9,840.5 1532.6,1039.6 1544.2,1086.9 1546.2,1131.0 1537.5,1174.5 1527.8,1191.7 1516.4,1549.3 1523.9,1560.5 1579.2,1767.8 1595.0,1787.1 1576.8,1806.7 1029.2,1816.1 1035.5,1840.9 1007.0,1841.0 966.8,1859.6 905.8,1872.9 847.8,1864.7 846.5,1866.0 841.5,1871.0 816.5,1864.5 15.9,1635.5 101.5,1621.3 86.9,1052.3 132.9,608.1 306.7,590.3 371.8,469.5 374.3,318.4 459.4,279.4 506.9,118.1 557.9,81.1 735.0,55.6 785.8,79.0 1221.7,60.9 1322.8,100.2 1534.2,76.5 1574.3,111.8 1567.7,238.3 1538.0,305.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0643/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30313940133539,35.089208596372735]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29598215177512,35.088861138329584]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29649577905701,35.081676173069]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30365302861729,35.08202363111216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0644/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p644","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.53"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0644/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0644","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"303.6,1719.8 320.6,1653.9 268.3,1632.5 220.4,1629.2 204.6,1610.2 148.2,1404.8 140.7,1393.8 148.4,1038.6 157.8,1021.5 165.9,978.2 163.6,934.4 151.7,887.5 155.9,689.8 74.7,747.4 54.9,701.7 53.0,657.2 61.5,609.6 139.8,314.6 151.4,285.4 213.4,214.9 229.9,184.1 176.5,172.3 149.9,158.6 178.5,91.6 178.1,101.3 321.9,121.5 534.6,107.0 814.6,35.4 1093.3,53.9 1237.6,25.2 1378.0,49.4 1429.3,87.2 1537.0,72.3 1568.4,92.7 1607.6,337.4 1539.7,825.8 1560.0,1176.8 1608.5,1338.5 1597.3,1504.2 1649.0,1497.7 1649.0,1500.8 1649.0,1503.1 1393.4,1760.7 1257.7,1780.1 1257.5,1786.6 849.8,1779.3 845.1,1726.7 730.9,1708.8 735.6,1766.8 302.2,1751.0 303.6,1719.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0644/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[453.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29531428279051,35.08650798785984]}},{"type":"Feature","properties":{"resourceCoords":[1859.0,-84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28895872508559,35.088245553157705]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0645__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p645 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"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":"6600.0"},{"label":"split_canvas_h","value":"4348.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0645__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0645","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"939.9,794.9 1027.8,785.2 1125.8,774.5 1121.8,759.0 1606.6,661.9 1606.0,644.6 1580.8,642.2 1575.3,52.0 1505.7,52.3 1217.3,289.6 1079.3,295.8 1078.4,302.2 670.1,255.3 670.6,202.5 557.8,173.5 556.8,231.7 123.6,174.0 123.0,178.2 138.1,234.7 134.7,235.6 103.8,401.5 90.4,396.9 70.0,398.0 135.1,1028.6 159.6,1017.6 197.8,992.4 222.7,967.2 244.2,929.0 545.5,952.2 543.6,1067.9 713.5,944.9 715.2,905.4 916.6,828.0 916.4,815.0 939.9,794.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0645__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":[-85.29691631390659,35.08263995338548]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28970554512114,35.08281145797878]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,1087.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28956844532715,35.07889663865313]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1087.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2967792141126,35.07872513405983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0646/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p646","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0646/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0646","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"196.9,1167.0 117.0,1030.8 108.5,765.8 105.2,571.1 111.3,438.2 278.5,324.8 281.3,286.8 477.6,218.2 477.8,205.7 501.0,187.0 680.6,172.9 677.2,157.8 1146.9,78.5 1146.9,62.0 1491.1,106.1 1546.1,221.4 1589.0,538.3 1607.3,536.4 1579.6,594.0 1573.2,581.8 1557.9,586.0 1333.3,831.7 1378.3,906.5 1388.3,940.6 1403.3,1077.2 1417.6,1332.9 1419.1,1430.8 1398.8,1545.8 1360.7,1705.0 1322.7,1703.5 1106.5,1701.5 771.4,1679.7 769.9,1644.9 790.4,1532.5 522.3,1229.8 477.8,1221.8 467.6,1316.5 228.0,1315.1 196.9,1167.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0646/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29502835747532,35.08046174223017]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28755423809935,35.080828371784406]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28701233579054,35.07332440805992]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2944864551665,35.07295777850568]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0647/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p647","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0647/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0647","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"195.3,1240.8 203.3,1218.8 251.3,1086.0 254.8,1074.0 284.5,973.2 294.2,875.2 309.0,617.9 309.7,479.6 303.6,444.4 267.4,364.6 517.3,144.8 518.5,144.1 534.1,141.5 539.1,154.5 573.1,100.0 1276.3,103.8 1319.5,151.8 1448.3,174.2 1496.3,131.0 1542.7,245.9 1584.2,536.9 1565.2,688.3 1603.0,746.5 1566.8,869.1 1593.0,973.2 1569.5,1171.8 1612.5,1241.9 1585.3,1377.2 1614.5,1548.0 1576.3,1640.8 1583.6,1789.5 1539.3,1896.0 1505.8,1897.6 1498.6,1939.4 1000.4,1840.5 1003.9,1836.8 842.4,1753.6 783.3,1729.7 744.9,1721.1 651.7,1721.2 481.3,1718.6 451.9,1716.0 399.4,1681.0 373.8,1629.8 352.2,1691.6 257.9,1641.1 240.2,1622.8 162.5,2009.0 158.1,2009.0 148.5,2009.0 174.1,1882.2 156.8,1857.2 124.2,2009.0 69.5,2009.0 114.7,1796.0 45.3,1695.4 195.3,1240.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0647/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[852.0,1757.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28506568934282,35.072927365229305]}},{"type":"Feature","properties":{"resourceCoords":[490.0,1307.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28703537161596,35.074344309878065]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0648/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p648","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0648/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0648","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.9,1292.3 62.3,1180.3 88.0,1168.0 167.2,1130.0 246.0,1085.0 283.6,1065.1 287.2,1062.8 188.2,429.7 213.6,447.1 235.4,576.0 248.6,571.0 181.9,178.1 205.2,188.9 205.1,188.2 312.6,202.4 310.6,136.2 353.4,175.2 415.7,189.3 444.4,181.1 606.2,121.7 694.2,87.8 733.6,82.0 798.0,83.2 980.7,103.2 978.8,107.9 1485.1,20.6 1502.3,108.2 1533.3,113.3 1556.9,176.0 1575.6,423.1 1551.0,1438.4 1538.5,1508.2 1510.5,1480.0 1375.0,1514.2 1393.9,1705.1 1356.4,1723.7 1367.8,1781.4 818.0,1859.7 727.4,1817.7 586.9,1845.3 588.0,1852.7 397.8,1713.2 477.1,1659.9 471.7,1642.5 469.3,1641.7 468.3,1640.0 80.3,1350.1 73.9,1292.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0648/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[468.0,1656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28792901893424,35.0674986774403]}},{"type":"Feature","properties":{"resourceCoords":[326.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2877833249513,35.070803870339226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0649__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p649 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0649__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0649","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1064.5,1870.8 1111.8,1870.7 1205.3,1626.0 1207.0,1507.5 1233.2,1508.1 1235.1,1505.9 1234.0,1508.2 1242.0,1508.3 1250.2,1508.5 1274.7,1444.4 1286.3,1446.2 1355.7,1365.2 1348.8,1350.0 1602.5,986.5 1582.1,696.2 1588.2,694.8 1581.4,543.0 1570.4,529.2 1544.0,152.3 1348.8,75.8 1304.1,81.0 1108.3,26.6 765.4,68.4 143.2,69.8 137.7,1.0 119.2,1.0 122.7,143.6 124.6,388.1 126.1,635.4 133.3,881.4 114.0,881.5 117.9,1318.0 135.6,1318.2 131.3,1440.8 128.0,1855.1 488.0,1871.0 488.0,1870.3 862.8,1867.6 865.6,1861.2 928.3,1863.8 952.3,1864.8 1064.5,1870.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0649__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[131.0,887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30779267343256,35.07345454465172]}},{"type":"Feature","properties":{"resourceCoords":[131.0,1318.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30794535029406,35.071875775736416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0651/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p651","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0651/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0651","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1355.5,274.8 1331.5,284.8 1364.3,766.3 1372.1,770.9 1421.5,840.9 1472.9,1183.5 1445.9,1193.8 1308.4,1330.3 1318.8,1331.9 1310.5,1360.2 1323.2,1370.1 1261.0,1641.4 1221.9,1662.4 1158.4,1879.2 841.2,1831.0 236.6,1842.8 128.1,1805.7 104.8,1728.3 91.7,570.7 250.8,506.3 301.0,294.9 259.5,262.3 414.6,230.9 543.4,102.5 815.7,87.7 908.1,49.0 1120.9,61.6 1254.5,104.7 1281.3,183.0 1363.8,202.6 1355.5,274.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0651/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[761.0,1748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.36109042588281,35.11996019497454]}},{"type":"Feature","properties":{"resourceCoords":[1540.0,219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.35927646992207,35.12606812869285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0652/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p652","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0652/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0652","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"706.0,640.6 1347.1,534.4 1337.6,507.9 756.1,485.1 853.0,415.6 799.9,334.7 751.4,260.6 740.9,244.5 702.2,185.6 701.0,183.7 648.0,102.9 678.7,93.3 742.8,73.2 746.9,71.9 1252.6,70.0 1329.3,42.0 1482.5,90.1 1495.0,152.3 1569.7,254.0 1567.5,335.3 1507.2,336.1 1386.1,530.1 1385.0,637.3 1397.1,668.3 1409.0,698.6 1414.1,711.9 1419.3,725.3 1430.0,753.2 1446.8,790.9 1451.2,800.9 1453.4,817.9 806.6,800.1 779.3,756.4 770.4,742.1 765.6,734.6 757.5,721.6 729.0,676.8 718.7,660.5 708.1,644.0 706.0,640.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0652/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[906.0,940.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.35629295243959,35.12385751941734]}},{"type":"Feature","properties":{"resourceCoords":[1207.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.35574780268853,35.12707645477043]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0653__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p653 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0653__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0653","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.0,1724.4 1587.0,1683.5 1608.2,1091.2 1580.2,137.4 1505.0,102.9 1270.3,132.2 709.2,74.2 411.8,116.6 344.4,98.7 278.5,144.8 171.2,155.9 83.7,643.4 85.9,936.1 209.6,1078.2 186.8,1204.6 429.0,1319.4 430.8,1319.4 432.8,1321.2 442.4,1325.7 509.7,1390.5 521.6,1401.2 521.6,1401.9 542.1,1421.7 565.4,1542.7 548.3,1610.9 590.4,1640.7 590.5,1645.3 707.6,1685.1 711.5,1695.1 1085.7,1806.2 1084.5,1788.3 1159.2,1830.7 1202.1,1847.7 1221.5,1850.2 1285.8,1842.3 1449.9,1773.8 1504.6,1757.2 1552.0,1724.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0653__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1308.0,1302.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.34470798453489,35.12372909884227]}},{"type":"Feature","properties":{"resourceCoords":[203.0,427.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3418787650279,35.128369666835695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0654/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p654","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0654/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0654","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1170.2,1759.8 1178.7,1763.3 1507.8,1790.7 1540.1,1815.5 1526.5,1688.8 1562.4,938.2 1469.5,613.8 1524.3,361.1 1472.1,248.0 1477.5,153.0 1442.0,192.9 1394.2,224.6 1339.5,239.9 1175.2,304.6 1111.1,311.1 1091.9,308.1 1049.7,290.4 976.4,246.7 977.2,264.4 607.9,146.4 604.3,136.4 488.8,94.5 488.8,89.9 447.6,59.4 441.0,83.5 151.6,106.0 142.2,227.2 260.6,280.9 296.9,494.9 222.7,862.8 111.8,986.6 134.6,1033.0 55.6,1583.0 1.0,1580.8 1.0,1641.8 192.6,1765.3 289.9,1767.8 300.0,1768.0 361.8,1745.0 375.1,1740.0 416.8,1724.6 464.9,1704.1 488.2,1701.5 537.8,1695.8 646.2,1744.5 657.1,1752.7 1025.4,1778.0 1035.3,1754.2 1045.8,1707.6 1170.2,1759.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0654/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1183.0,1412.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.35198448019152,35.122444413900716]}},{"type":"Feature","properties":{"resourceCoords":[272.0,1765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.35447435607536,35.12543583390683]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0655/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p655","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.32"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0655/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0655","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"655.6,1871.7 559.2,1244.9 586.6,1246.5 567.5,1076.9 558.6,1007.9 540.1,899.5 583.7,899.3 757.9,649.2 795.5,625.5 830.2,617.9 829.2,569.3 828.1,503.3 825.4,403.4 825.8,312.5 824.5,109.0 1151.0,47.8 1354.3,54.2 1432.8,99.0 1533.6,108.7 1556.1,249.6 1544.9,307.2 1471.3,352.0 1488.9,427.3 1463.4,728.3 1508.4,1058.1 1492.4,1154.2 1585.3,1508.0 1543.8,1649.0 1561.4,1700.2 1519.8,1753.0 1557.2,1827.7 1216.8,1804.4 1219.4,1830.0 1118.1,1843.3 1008.1,1850.3 934.6,1844.4 869.3,1858.7 666.6,1872.1 655.6,1871.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0655/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1282.0,159.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2838474,35.1211343]}},{"type":"Feature","properties":{"resourceCoords":[824.0,159.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2857341,35.1219062]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0656/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p656","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0656/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0656","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"745.2,1899.8 678.1,1890.8 582.5,1880.7 588.1,1849.9 238.8,1826.8 237.4,1789.7 88.8,1895.4 56.0,1583.7 128.8,1335.3 131.1,1181.3 63.8,972.8 188.7,705.5 196.1,561.3 147.5,468.1 207.1,432.1 210.5,375.7 210.7,341.9 210.8,325.1 209.8,275.2 332.1,93.7 386.1,99.5 395.4,100.5 439.4,102.6 489.6,103.6 696.5,86.5 763.0,70.8 838.3,75.7 950.7,66.6 1054.0,51.2 1050.9,25.2 1399.4,43.3 1420.8,84.5 1513.8,65.0 1594.8,109.5 1623.4,259.6 1616.5,1410.9 1568.4,1865.3 1544.4,1898.4 1320.6,1928.3 788.4,1920.5 749.0,1952.2 745.2,1899.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0656/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1111.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28747202954051,35.115274958706095]}},{"type":"Feature","properties":{"resourceCoords":[565.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28965323203583,35.11620413997281]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0657/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p657","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0657/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0657","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"254.1,1680.0 262.9,1735.5 278.0,1768.6 295.9,1789.5 310.1,1832.9 268.8,1847.8 274.1,1852.7 650.2,1864.4 649.7,1854.5 1150.1,1854.0 1150.0,1831.5 1405.8,1829.1 1575.9,1826.2 1578.8,1676.8 1574.0,1315.5 1574.4,885.2 1569.2,553.4 1554.5,554.0 1547.7,56.3 1463.1,29.6 1466.2,47.2 1108.0,38.8 266.3,115.8 185.3,97.6 128.8,153.1 60.6,364.8 81.9,940.6 1.0,949.9 1.0,950.9 17.1,964.9 44.1,981.9 46.5,1044.6 1.0,1100.3 1.0,1214.5 54.8,1258.5 70.1,1652.8 71.2,1650.4 84.5,1353.9 90.2,1317.1 100.6,1295.9 146.7,1333.6 175.9,1422.8 286.2,1531.9 254.7,1649.2 254.1,1680.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0657/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1571.0,892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31071900181195,35.07190480039992]}},{"type":"Feature","properties":{"resourceCoords":[418.0,1608.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31626816018212,35.069605261555736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0658/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p658","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0658/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0658","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.0,1761.8 81.9,1632.9 98.8,1053.1 68.1,994.9 104.2,672.6 72.4,356.7 141.0,250.1 150.7,84.0 334.4,39.5 480.5,45.2 483.9,79.5 503.6,84.5 675.4,200.8 677.0,205.2 1102.3,173.6 1112.9,175.0 1169.3,213.4 1176.2,222.8 1194.2,247.3 1197.4,273.9 1202.7,317.0 1482.7,369.4 1467.8,489.2 1444.2,665.5 1440.0,920.5 1436.9,1035.6 1438.4,1696.0 1436.4,1722.3 1435.9,1745.3 751.3,1749.6 700.5,1763.4 654.6,1765.8 615.0,1750.4 242.1,1752.7 262.5,1791.9 160.9,1817.8 121.0,1761.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0658/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1433.0,1604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31046783268903,35.091455267824216]}},{"type":"Feature","properties":{"resourceCoords":[1433.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30699474429356,35.09519148430782]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0659/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p659","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.06"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0659/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0659","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1505.7,1784.8 1487.0,1884.0 598.5,1791.3 474.1,1858.6 117.6,1849.8 126.6,1396.8 75.8,1158.0 57.5,767.0 77.9,502.7 107.8,489.3 126.5,358.1 95.8,316.5 207.5,286.1 184.4,243.3 596.0,234.3 640.0,250.6 690.6,247.1 746.4,231.0 1502.1,214.5 1501.7,277.1 1501.8,565.2 1504.8,700.0 1504.2,767.2 1504.0,862.0 1518.3,861.3 1534.3,1579.2 1507.2,1579.9 1505.7,1784.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0659/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1504.0,862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3124964,35.0893008]}},{"type":"Feature","properties":{"resourceCoords":[1504.0,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3107025,35.0911696]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0660/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p660","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0660/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0660","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"374.6,1922.8 350.9,1927.6 350.8,1874.9 105.3,1820.3 107.0,1785.9 109.5,1660.3 120.7,1392.4 124.7,1310.6 127.5,1283.6 144.1,605.0 150.4,486.9 161.7,225.0 190.8,44.5 266.8,46.1 373.4,43.8 442.6,45.9 694.5,44.0 883.0,49.7 882.8,46.1 1182.2,47.7 1358.8,121.7 1536.1,126.8 1560.9,332.8 1504.6,515.0 1542.0,611.5 1507.7,659.0 1547.2,726.6 1596.5,1043.0 1533.3,1869.9 1010.5,1930.7 816.3,1883.0 467.4,1887.1 424.2,1921.8 374.6,1922.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0660/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[775.0,843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30722330842195,35.09109525361584]}},{"type":"Feature","properties":{"resourceCoords":[775.0,1314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30844548492706,35.08970493712273]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0661/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p661","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.60"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0661/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0661","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"684.3,1845.0 684.4,1855.9 418.4,1922.8 402.0,1897.5 101.5,1880.0 65.4,1740.7 64.2,910.0 120.1,724.6 141.8,493.6 121.2,461.8 135.2,434.6 230.9,435.9 363.5,340.8 287.1,223.1 197.1,195.7 151.7,125.7 210.4,132.8 253.9,185.9 510.9,150.3 582.0,104.2 692.5,114.1 749.4,128.2 954.0,147.8 1080.6,181.2 1131.3,190.6 1236.5,222.4 1357.5,252.2 1476.0,283.0 1481.8,502.6 1481.3,591.2 1475.0,776.4 1472.4,887.4 1579.7,1361.5 1619.5,1364.8 1596.3,1384.8 1614.0,1662.6 1630.9,1688.8 1599.0,1745.2 1604.3,1781.7 1504.1,1878.2 1504.1,1874.0 1393.3,1870.4 1352.7,1862.2 1317.7,1838.6 929.2,1862.7 905.5,1848.5 684.3,1845.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0661/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1465.0,840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30045738317968,35.102809074232056]}},{"type":"Feature","properties":{"resourceCoords":[1465.0,1547.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30213081576323,35.10069856984684]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0662/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p662","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.45"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0662/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0662","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"249.2,1943.2 141.4,1473.6 143.5,1363.6 149.1,1180.1 149.4,1092.2 142.8,874.6 163.8,476.6 163.8,459.1 163.8,452.9 165.3,364.3 161.5,310.5 158.3,266.3 158.5,260.3 252.4,66.0 253.5,65.9 311.7,61.6 357.5,58.2 435.1,52.5 488.4,48.7 689.1,39.5 833.1,26.6 858.0,71.0 1096.2,112.8 1210.2,74.2 1478.8,100.7 1526.4,132.4 1513.2,208.3 1562.8,490.1 1540.0,702.5 1495.8,758.4 1530.5,839.0 1510.8,946.1 1539.5,990.1 1551.7,1489.4 1482.9,1494.0 1366.6,1570.0 1346.0,1655.2 1367.2,1735.7 1335.4,1796.9 1355.9,1828.3 1311.0,1848.8 1133.4,1893.0 699.0,1880.6 574.9,1903.4 448.0,1874.1 348.9,1894.0 288.7,1946.3 249.2,1943.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0662/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[683.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29517093684001,35.10582269218281]}},{"type":"Feature","properties":{"resourceCoords":[155.0,1411.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30034197095816,35.102814694831444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0663/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p663","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0663/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0663","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"685.0,1579.8 707.0,1616.8 707.2,1627.1 707.6,1644.2 708.8,1688.7 988.8,1769.8 961.7,1890.4 1037.0,1897.4 1143.2,1902.5 1211.7,1909.6 1462.1,1925.4 1595.6,1936.6 1543.2,1851.7 1573.4,1781.0 1566.0,1051.7 1614.5,778.6 1607.0,435.9 1556.5,297.8 1564.9,114.5 1383.6,52.8 1249.2,53.2 1234.2,28.8 1201.8,83.0 1206.2,118.7 1106.5,210.6 1106.5,206.5 998.6,200.5 959.3,191.6 925.7,167.9 546.6,182.9 523.8,168.5 308.4,160.3 308.2,170.9 47.5,230.2 94.2,305.8 73.8,1299.7 12.9,1341.6 1.0,1340.0 1.0,1375.6 19.6,1382.2 183.1,1517.8 184.3,1522.4 620.7,1532.5 631.4,1535.0 653.8,1553.6 685.0,1579.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0663/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[301.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3054963698423,35.101621489536015]}},{"type":"Feature","properties":{"resourceCoords":[1486.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30520823948547,35.09376640114938]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0664/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p664","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.22"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0664/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0664","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"622.6,1839.5 567.0,1842.0 90.9,1840.7 222.8,1375.6 143.6,1307.9 149.6,1173.5 81.8,1138.1 174.4,335.4 97.7,282.8 117.7,195.8 376.1,240.5 574.4,202.0 841.0,335.3 1306.7,129.2 1350.7,57.0 1550.3,83.3 1407.8,655.4 1498.5,755.4 1521.5,934.6 1487.3,1296.8 1561.5,1771.5 1534.3,1842.0 622.6,1839.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0664/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[567.0,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3220712,35.062222]}},{"type":"Feature","properties":{"resourceCoords":[1539.0,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3213743,35.0603926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0665/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p665","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.52"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0665/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0665","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1593.9,1145.1 1578.2,1881.1 1428.2,1926.5 1338.6,1898.2 964.7,1912.7 593.4,1793.0 485.4,1931.0 161.8,1886.3 154.1,1868.7 193.6,1730.9 119.7,1638.6 173.4,1497.7 95.0,1140.0 239.6,589.5 181.8,545.1 171.1,292.6 91.1,277.0 84.5,209.9 103.6,168.5 594.5,247.5 652.2,253.9 1592.3,405.2 1578.0,429.9 1591.9,523.8 1585.0,673.5 1575.6,1142.7 1593.9,1145.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0665/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[603.0,249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.32206573182343,35.062206325907574]}},{"type":"Feature","properties":{"resourceCoords":[1572.0,419.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.32142705453346,35.06042439414933]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0668__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p668 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0668__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0668","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"996.2,1435.2 1026.3,1115.5 1131.0,951.9 1131.0,828.8 1083.4,839.8 1017.1,879.0 524.8,1246.1 519.3,1247.4 1131.0,706.4 1131.0,525.4 1131.0,413.0 1462.8,413.0 1560.0,326.9 1551.8,261.4 1541.1,202.8 1483.3,146.7 1162.3,147.8 940.0,239.7 877.7,175.7 615.0,140.7 505.8,39.3 373.8,74.5 366.1,258.6 72.6,575.8 107.8,1113.1 1.0,1217.2 1.0,1237.4 254.6,1805.9 467.2,1821.1 545.2,1867.7 596.2,1788.1 606.3,1732.1 639.5,1664.6 716.8,1577.8 744.8,1555.8 766.9,1538.4 996.2,1435.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0668__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[96.0,1463.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31818683769527,35.06872890010205]}},{"type":"Feature","properties":{"resourceCoords":[96.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.317633293897,35.06828736633464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0671__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p671 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.87"},{"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":"3354.8"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0671__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0671","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.6,235.6 151.8,407.1 177.8,406.8 158.9,1706.5 110.0,1706.0 98.1,2009.0 104.1,2009.0 108.8,2009.0 154.8,1805.9 242.2,1742.3 712.5,1739.0 716.5,1156.2 791.1,780.7 759.2,393.6 782.0,374.9 685.7,377.5 639.8,387.0 638.9,284.6 161.1,181.0 158.6,235.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0671__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[639.8,387.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3115674,35.0887941]}},{"type":"Feature","properties":{"resourceCoords":[110.0,1706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3143204,35.0873828]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p672 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"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":"6600.0"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.2,1711.9 161.2,1719.8 217.4,1732.7 419.2,1748.5 544.5,1779.2 594.5,1787.7 698.7,1817.3 818.4,1844.5 935.5,1872.8 950.8,1477.2 950.5,1453.5 950.9,1365.5 942.5,1268.3 942.6,1262.3 1033.2,1068.0 1034.3,1067.9 1137.5,1058.8 1267.4,1047.5 1466.7,1035.7 1609.5,1020.8 1606.8,1016.0 1603.9,216.8 1550.5,104.2 1349.6,126.4 1082.5,170.8 1083.0,161.9 844.5,179.2 770.6,185.5 660.3,92.8 650.5,40.9 606.3,78.4 344.2,43.4 66.0,77.8 44.6,1221.9 91.4,1685.5 52.2,1711.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1479.0,1024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29501351462206,35.10589739341236]}},{"type":"Feature","properties":{"resourceCoords":[952.0,1106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29714646234086,35.10671536157041]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p672 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3988.0"},{"label":"split_canvas_y","value":"5352.0"},{"label":"split_canvas_w","value":"2612.0"},{"label":"split_canvas_h","value":"2688.0"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"997.0,1675.2 997.0,1726.8 1086.0,1835.4 1158.0,1842.7 1389.5,1869.0 1387.5,1877.5 1649.0,1882.9 1649.0,1877.6 1599.7,1763.1 1598.8,1604.9 1649.0,1570.2 1649.0,1526.3 1649.0,1517.9 1583.2,1504.2 1489.1,1487.2 1496.9,1457.0 1152.2,1408.8 1153.6,1371.9 998.6,1466.0 1005.1,1670.6 997.0,1675.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0672__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1423.0,1720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29393073952895,35.10973849843255]}},{"type":"Feature","properties":{"resourceCoords":[1153.0,1581.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29480483042363,35.1106077959725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0673/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p673","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0673/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0673","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"949.4,1705.3 960.9,1606.0 1252.5,1278.5 1376.2,1309.0 1463.0,1325.0 1540.0,1337.0 1495.5,38.5 1456.1,31.4 965.0,133.9 963.5,144.8 262.1,303.9 128.4,213.8 1.0,120.3 1.0,248.2 85.0,265.1 58.9,1015.2 178.8,1564.6 288.4,1587.5 357.9,1780.8 774.7,1942.6 785.4,1972.2 913.4,1916.9 935.2,1805.8 949.4,1705.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0673/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1561.0,1334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2899101798378,35.11641134209884]}},{"type":"Feature","properties":{"resourceCoords":[924.0,-6.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.29023702625376,35.119126479465926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0674/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p674","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0674/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0674","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.9,182.3 251.2,74.8 313.9,116.0 322.8,70.2 587.0,71.8 673.7,174.6 838.0,64.0 1465.8,147.0 1527.0,106.8 1598.5,275.0 1612.3,679.1 1649.0,677.4 1649.0,688.4 1547.8,691.2 1551.7,842.8 1567.8,1229.8 1571.5,1501.5 1382.0,1472.3 1173.7,1852.8 1172.9,1812.4 952.8,1854.1 812.6,1874.7 467.8,1919.8 471.8,1824.3 304.6,1354.5 293.6,1354.5 42.2,685.1 113.0,541.4 188.4,402.1 62.0,419.4 76.9,182.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0674/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[478.0,1908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.28896587032818,35.118668788076086]}},{"type":"Feature","properties":{"resourceCoords":[850.0,367.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2916642483618,35.12059930853874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0675/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1955 | sanborn08291_020 p675","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T13:29:22Z","modified":"2026-10-18T13:29:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0675/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0675","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"508.1,1677.9 507.1,1676.1 32.1,1300.7 34.8,1253.5 266.5,899.5 448.6,942.4 465.8,677.8 479.8,300.3 487.6,152.7 586.2,157.6 588.0,146.9 1257.3,169.2 1415.0,248.8 1509.4,216.3 1554.1,266.8 1549.7,601.0 1628.8,768.3 1634.0,998.0 1550.8,1528.2 1614.0,1640.3 1610.8,1850.4 1570.4,1873.2 1166.7,1851.4 986.5,1839.6 788.0,1833.0 698.9,1829.1 657.1,1827.3 560.5,1823.3 549.6,1753.5 508.1,1677.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195506:08291_06_1955-0675/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[794.0,168.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2899718,35.1219883]}},{"type":"Feature","properties":{"resourceCoords":[788.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2864267,35.1207391]}}]}}]}