{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08291_018.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chattanooga, Tennessee | 1955 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"70"},{"label":"placed","value":"60"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef 34, georef-snap 25, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p0 (tier 1, 35.01427,-85.26860 +/-260m); p401__2 (tier 1, 35.02370,-85.29933 +/-100m); p412__1 (tier 1, 35.01232,-85.27496 +/-179m); p425 (tier 1, 35.00455,-85.29011 +/-268m); p439__2 (tier 1, 34.99375,-85.29043 +/-125m); p450 (tier 2, 34.98753,-85.28220 +/-100m); p454 (tier 1, 34.98620,-85.28436 +/-269m); p455__1 (tier 1, 34.98809,-85.28708 +/-194m); p457__1 (tier 1, 35.01067,-85.29538 +/-213m); p462 (tier 1, 35.00811,-85.27819 +/-263m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0401__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_018 p401 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"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":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0401__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0401","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2010.0 945.1,2010.0 1315.2,773.0 1650.0,892.1 1650.0,555.4 1106.6,557.0 1106.7,0.0 -0.0,-0.0 -0.0,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0401__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[175.0,721.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2997316,35.0248038]}},{"type":"Feature","properties":{"resourceCoords":[1169.0,721.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2978038,35.0245693]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0402/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_018 p402","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0402/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0402","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.0,2010.0 -0.0,2010.0 -0.0,228.5 311.2,242.7 238.2,0.0 1650.0,0.0 1650.0,145.8 1287.0,148.4 1287.6,227.7 1351.9,226.2 1288.4,343.2 1300.0,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0402/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29731753789807,35.02483283561809]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2939847321677,35.0235359095553]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29590043691599,35.02018763650044]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29923324264635,35.02148456256323]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0403/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_018 p403","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0403/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0403","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.8,0.0 1650.0,0.0 1650.0,2010.0 1568.5,2010.0 1380.0,1807.9 1471.9,2010.0 -0.0,2010.0 -0.0,193.8 64.0,77.8 -0.0,78.9 -0.0,-0.0 1552.0,0.0 1552.8,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0403/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29485927733383,35.02357402258937]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29149797712748,35.02228957982212]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29339522195956,35.01891264321813]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29675652216591,35.02019708598538]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0404/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_018 p404","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0404/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0404","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.6,1859.2 1293.9,2010.0 -0.0,2010.0 -0.0,99.8 157.2,56.0 151.1,382.4 1485.6,387.6 1543.1,439.1 1650.0,594.4 1650.0,1858.2 1293.6,1859.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0404/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1507.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2963672,35.014471]}},{"type":"Feature","properties":{"resourceCoords":[374.0,595.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2987045,35.0204348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0405/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_018 p405","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0405/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0405","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"328.6,1202.3 256.1,1097.9 297.1,1098.5 304.5,81.7 -0.0,77.9 -0.0,-0.0 1266.5,0.0 1266.0,2007.7 704.0,2010.0 696.8,1811.0 669.4,1735.0 546.7,1548.3 330.2,1549.8 328.6,1202.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0405/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1102.0,1302.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2904938,35.0170238]}},{"type":"Feature","properties":{"resourceCoords":[1102.0,1805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2914175,35.0153476]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0406/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_018 p406","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"25"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0406/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0406","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1041.9,1796.8 225.3,1805.7 227.4,2010.0 -0.0,2010.0 0.0,-0.0 1298.9,0.0 1229.0,1373.1 1424.5,1374.0 1429.7,1819.9 1227.3,1823.0 1231.1,2008.6 1189.4,1961.9 1190.1,2010.0 1043.2,2010.0 1041.9,1796.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0406/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[599.0,1549.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2878236,35.0150631]}},{"type":"Feature","properties":{"resourceCoords":[1428.0,1596.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2845233,35.0136511]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0407/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_018 p407","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"21"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0407/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0407","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"723.4,1643.6 733.4,1810.3 220.9,1838.8 193.3,1398.2 -0.0,1407.1 -0.0,-0.0 1308.1,-0.0 1357.1,986.9 1384.1,985.5 1405.6,1518.2 972.0,1550.8 974.0,1575.2 837.2,1582.3 829.1,1630.9 723.4,1643.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0407/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[208.0,1618.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2845233,35.0136511]}},{"type":"Feature","properties":{"resourceCoords":[717.0,1537.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2823053,35.0130547]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0408/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_018 p408","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0408/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0408","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1577.5,1263.2 1650.0,1407.8 1650.0,1923.5 1553.2,1924.8 410.8,1606.3 410.2,2010.0 -0.0,2010.0 -0.0,144.2 906.8,36.1 948.5,310.5 767.6,309.1 759.7,1311.7 1577.5,1263.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0408/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1188.0,1454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.291313,34.9884815]}},{"type":"Feature","properties":{"resourceCoords":[452.0,1454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.294628,34.9884141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0409/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_018 p409","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0409/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0409","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1471.3,1693.5 57.6,1672.5 54.5,2010.0 -0.0,2010.0 -0.0,-0.0 1603.2,0.0 1566.0,1132.6 1524.1,1132.7 1479.7,1132.8 1471.3,1693.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0409/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2767208,35.0171576]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2733389,35.0159027]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27520539999999,35.0125286]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2785873,35.0137835]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0410/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_018 p410","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0410/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0410","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.6,2010.0 90.9,1674.5 -0.0,1675.0 -0.0,1105.5 88.0,1103.5 107.0,0.0 1650.0,0.0 1650.0,1802.1 1500.4,1641.9 1144.3,1651.1 1154.2,2010.0 92.6,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0410/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27369593713325,35.015945396292224]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27041197232201,35.0146602003303]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27231014573248,35.011360639129876]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27559411054372,35.0126458350918]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0411/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_018 p411","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0411/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0411","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1650.0,719.1 1650.0,1380.0 1592.4,1381.0 1625.0,2010.0 -0.0,2010.0 -0.0,-0.0 1543.3,0.0 1563.1,720.3 1650.0,719.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0411/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27815577109125,35.01430616304897]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27488490257632,35.013044242744705]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27674866175012,35.009757774450705]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28001953026505,35.01101969475497]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0412__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_018 p412 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"13"},{"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":"5898.0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0412__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0412","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.6,936.8 1246.2,926.8 1247.0,1349.3 1650.0,1358.5 1625.9,162.1 1482.1,0.0 1131.8,0.0 1134.2,354.9 99.5,328.1 104.1,703.8 189.1,704.4 185.6,936.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0412__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[705.0,708.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2744987,35.0114757]}},{"type":"Feature","properties":{"resourceCoords":[705.0,1354.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2750892,35.0103922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0413/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_018 p413","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0413/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0413","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,0.0 573.7,0.0 702.9,199.5 728.5,305.1 726.7,459.1 1337.5,463.1 1337.2,507.5 1511.2,507.7 1511.2,1630.6 1394.3,1451.5 1105.0,1640.6 860.3,1263.6 635.0,1415.0 748.9,1586.7 -0.0,1582.4 -0.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0413/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1121.0,508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2918808,35.0145094]}},{"type":"Feature","properties":{"resourceCoords":[129.0,508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2959625,35.0159912]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0414/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_018 p414","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0414/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0414","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"769.2,1775.2 620.4,2010.0 449.6,2010.0 182.4,1610.5 176.6,786.0 -0.0,491.1 -0.0,444.6 171.9,240.2 988.5,227.1 1647.9,958.5 1650.0,2010.0 909.9,2010.0 769.2,1775.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0414/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29007972488085,35.015839701244175]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28335254706901,35.01331595272242]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28707989106982,35.00655662139844]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29380706888166,35.00908036992019]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0415/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_018 p415","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0415/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0415","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.5,180.6 72.3,0.0 1384.7,0.0 1379.3,729.0 1549.1,731.0 1554.8,839.6 1603.6,851.5 1598.6,1210.7 1142.3,1205.3 1148.4,995.5 615.1,1000.4 615.3,1024.8 172.2,1015.9 188.9,1002.8 187.4,458.4 157.8,457.9 155.2,726.5 0.0,730.8 0.0,180.8 70.5,180.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0415/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2881857365684,35.00855095720205]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2852969647972,35.01408656010532]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27712152554794,35.01118393270438]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28001029731914,35.005648329801105]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0416/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_018 p416","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0416/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0416","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"413.2,978.2 388.8,977.9 208.6,975.5 201.3,506.8 603.4,518.8 595.0,208.6 623.2,208.9 628.3,0.0 1160.6,0.0 1159.0,212.0 1361.2,218.5 1363.3,0.0 1650.0,0.0 1636.3,1683.3 871.1,1693.0 871.2,1671.4 403.9,1669.6 413.2,978.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0416/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1159.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2739747,35.009995]}},{"type":"Feature","properties":{"resourceCoords":[887.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2750892,35.0103922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0417/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_018 p417","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0417/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0417","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1091.2,1061.7 1271.3,1330.1 209.4,2010.0 -0.0,2010.0 -0.0,0.0 868.5,0.0 1080.1,316.2 995.3,373.8 917.2,463.7 1281.6,1016.4 1193.9,1072.4 1171.5,1008.1 1091.2,1061.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0417/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2989609424943,35.01275195744126]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2921545117199,35.010242801841656]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29586016108146,35.003403576246804]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30266659185587,35.00591273184641]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__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_018 p418 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"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":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"559.8,2010.0 636.1,2010.0 1099.9,1636.3 1099.5,1020.1 1527.0,1019.4 1519.6,0.0 1051.5,0.0 759.1,456.6 588.5,454.8 675.5,587.2 504.4,1924.6 559.8,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1561.0,655.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2883545,35.0062662]}},{"type":"Feature","properties":{"resourceCoords":[1050.0,162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2895482,35.0086852]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__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_018 p418 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"4398.0"},{"label":"split_canvas_y","value":"4076.8"},{"label":"split_canvas_w","value":"2202.0"},{"label":"split_canvas_h","value":"3963.2"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1238.0,1819.8 1230.0,2010.0 1650.0,2010.0 1650.0,1019.2 1099.5,1020.1 1100.0,1805.4 1238.0,1819.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0418__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1251.3,1431.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2774425,34.9987933]}},{"type":"Feature","properties":{"resourceCoords":[1517.1,1208.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2758762,34.9992848]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0419/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_018 p419","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"16"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0419/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0419","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1270.5,420.4 1650.0,416.0 1650.0,753.6 1410.2,760.2 1411.4,861.1 1475.4,901.5 1483.6,1351.9 1650.0,1348.9 1640.8,1487.6 516.7,1487.0 187.4,2010.0 -0.0,2010.0 -0.0,-0.0 1259.7,0.0 1270.5,420.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0419/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1106.0,1105.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2961401,35.0021593]}},{"type":"Feature","properties":{"resourceCoords":[279.0,1863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2993499,34.9989412]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0420/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_018 p420","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0420/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0420","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1650.0,1679.4 1520.9,1680.4 1531.5,2010.0 -0.0,2010.0 -0.0,529.0 180.8,528.9 513.1,0.0 1650.0,0.0 1650.0,986.7 1510.7,987.8 1519.5,1622.7 1650.0,1620.6 1650.0,1679.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0420/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1135.0,1339.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2949226,34.9959139]}},{"type":"Feature","properties":{"resourceCoords":[429.0,133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2988205,34.9999174]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0421/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_018 p421","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0421/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0421","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1095.6,65.9 556.8,59.5 558.0,0.0 1650.0,0.0 1650.0,1747.7 1596.3,1747.7 1596.5,1700.7 -0.0,1677.3 -0.0,374.3 1103.3,377.4 1095.6,65.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0421/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28712591141019,35.00891675572655]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28377635135925,35.00773649664701]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28551938784474,35.00437073880151]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28886894789568,35.00555099788105]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0422/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_018 p422","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0422/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0422","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1558.6,2010.0 1107.5,2010.0 1102.5,1716.7 144.9,1732.3 114.0,0.0 140.5,0.0 139.4,230.4 1541.1,229.8 1558.6,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0422/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28403234375905,35.00776503475061]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28074344481197,35.00654839710062]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28254018113195,35.00324354779535]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28582908007903,35.00446018544534]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0423/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_018 p423","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0423/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0423","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2006.6 -0.0,248.6 497.6,253.3 498.5,123.8 41.0,111.7 40.5,0.0 1573.4,0.0 1549.8,1611.5 1000.9,1608.3 993.7,2010.0 -0.0,2006.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0423/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28094571397044,35.0066666618765]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27760057387096,35.00546159282138]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2793802013201,35.00210018368271]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28272534141958,35.003305252737825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0424/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_018 p424","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0424/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0424","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1650.0,0.0 1650.0,2010.0 47.1,2010.0 111.1,0.0 1650.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0424/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27802227856392,35.00552371039931]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27464228118616,35.00436052436413]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27636003231785,35.00096404073248]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27974002969562,35.002127226767655]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0426/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_018 p426","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0426/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0426","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1650.0,1836.1 588.4,1831.0 587.6,1737.3 -0.0,1728.8 -0.0,-0.0 1565.3,0.0 1571.2,379.6 1649.9,380.0 1650.0,1836.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0426/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[578.0,373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.287742,35.0050438]}},{"type":"Feature","properties":{"resourceCoords":[1125.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2879624,35.0021621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0427/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_018 p427","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0427/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0427","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1071.5,0.0 1073.2,287.6 1476.6,294.2 1456.8,1906.3 1650.0,1908.7 1650.0,2010.0 1072.8,2010.0 1075.4,1733.8 152.6,1716.3 152.4,1806.8 144.8,1806.7 164.2,337.9 84.9,336.5 84.1,0.0 1071.5,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0427/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[695.0,1111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2851316,35.0025313]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2827231,35.0030288]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0428/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_018 p428","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0428/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0428","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1016.7,1670.5 1017.7,2010.0 -0.0,2010.0 -0.0,400.4 1017.1,398.2 1019.8,0.0 1561.3,0.0 1558.2,1678.2 1016.7,1670.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0428/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1016.0,554.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2808556,35.0023187]}},{"type":"Feature","properties":{"resourceCoords":[1564.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2803422,35.0007895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0429/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_018 p429","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0429/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0429","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.3,1698.7 102.0,453.7 1650.0,425.2 1650.0,820.3 1335.6,846.9 1402.7,1641.0 96.3,1698.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0429/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[104.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2803422,35.0007895]}},{"type":"Feature","properties":{"resourceCoords":[651.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.27923,35.0003869]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0430/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_018 p430","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0430/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0430","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1836.7 -0.0,1836.7 74.8,109.3 1164.5,0.0 1650.0,0.0 1650.0,1395.5 1650.0,1827.6 1264.6,2010.0 -0.0,2010.0 -0.0,1836.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0430/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27970754189832,34.99985756622716]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2763632713823,34.9985757052293]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27825614519485,34.99521488798169]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28160041571087,34.99649674897955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0431/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_018 p431","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0431/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0431","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"698.7,93.8 1373.2,87.0 1385.1,1475.0 1341.3,1409.9 751.2,1806.8 -0.0,706.3 -0.0,0.0 696.6,0.0 698.7,93.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0431/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[714.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2898439,35.001138]}},{"type":"Feature","properties":{"resourceCoords":[169.0,106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2901635,35.0029642]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0432/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_018 p432","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0432/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0432","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,89.4 395.1,89.4 393.5,0.0 1306.5,0.0 1350.3,2010.0 355.2,2010.0 240.9,1836.8 -0.0,1842.2 -0.0,89.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0432/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[939.0,924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2865273,34.9999259]}},{"type":"Feature","properties":{"resourceCoords":[1477.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2846374,35.0009183]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0433/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_018 p433","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0433/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0433","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,568.1 572.9,562.7 572.0,462.2 1392.0,464.5 1392.1,771.5 1505.7,1040.2 1521.3,1400.5 1518.0,1400.4 1524.1,1787.8 1382.1,1785.7 1378.8,2010.0 -0.0,2010.0 -0.0,568.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0433/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1392.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2818765,35.0004436]}},{"type":"Feature","properties":{"resourceCoords":[1525.0,1844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2831733,34.9974407]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0434/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_018 p434","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0434/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0434","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1434.9,1841.0 376.4,1850.0 351.7,1084.9 224.3,774.1 213.6,125.8 1304.3,112.9 1318.5,936.8 1429.1,941.3 1425.9,1392.2 1650.0,1385.7 1650.0,1840.4 1434.9,1841.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0434/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2821897234438,35.000819520752756]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2788533152499,34.99953595445018]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28074873005036,34.99618307881363]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28408513824427,34.997466645116205]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0435/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_018 p435","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0435/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0435","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,920.6 -0.0,775.5 433.7,262.7 406.7,221.2 1423.9,228.6 1422.3,1545.4 649.5,2010.0 541.2,2010.0 -0.0,920.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0435/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[340.0,1435.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2899816,34.9965758]}},{"type":"Feature","properties":{"resourceCoords":[1015.0,784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2880267,34.9971565]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0436/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_018 p436","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0436/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0436","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2010.0 -0.0,249.7 1370.2,245.0 1353.7,1775.5 667.5,1776.2 667.4,2010.0 -0.0,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0436/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1516.0,1273.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2842664,34.9954472]}},{"type":"Feature","properties":{"resourceCoords":[988.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2842582,34.9978231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0437/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_018 p437","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0437/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0437","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"163.8,1762.2 -0.0,1764.2 -0.0,0.0 144.8,0.0 146.1,57.1 1006.4,55.7 1006.4,227.7 1376.8,233.7 1375.8,660.8 1650.0,663.8 1650.0,1275.4 1374.2,1278.5 1373.0,1757.3 164.0,1770.6 163.8,1762.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0437/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[158.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2842664,34.9954472]}},{"type":"Feature","properties":{"resourceCoords":[1220.0,659.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.281567,34.9956278]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0438/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_018 p438","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0438/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0438","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,64.3 49.7,0.0 1650.0,0.0 1625.3,1737.8 1038.3,1750.5 945.4,2010.0 -0.0,2010.0 -0.0,64.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0438/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28062855848019,34.99661072543348]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27731676822646,34.99533362171197]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27920254349212,34.992005315424144]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28251433374585,34.99328241914565]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__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_018 p439 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4126.4"},{"label":"split_canvas_h","value":"8040.0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"568.5,1792.7 907.5,161.9 822.9,143.8 853.8,0.0 -0.0,-0.0 31.2,217.9 -0.0,230.0 -0.0,1809.0 55.2,1796.3 94.5,1897.9 568.5,1792.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[255.9,873.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2895863,34.9942708]}},{"type":"Feature","properties":{"resourceCoords":[677.7,1811.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.289104,34.9924473]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__3/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_018 p439 [3]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"split_canvas_x","value":"3030.0"},{"label":"split_canvas_y","value":"3291.2"},{"label":"split_canvas_w","value":"3570.0"},{"label":"split_canvas_h","value":"4748.8"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1415.5,2010.0 1650.0,2010.0 1650.0,1259.4 1650.0,1014.0 959.0,832.8 960.4,1136.6 984.8,1725.9 1415.5,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0439__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[960.4,1136.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2904736,34.99907]}},{"type":"Feature","properties":{"resourceCoords":[960.4,1808.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2902301,34.9978079]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0440/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_018 p440","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0440/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0440","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1096.7,1762.8 624.4,1763.0 624.7,1891.4 -0.0,1911.2 -0.0,234.3 586.9,234.8 588.5,0.0 1445.1,0.0 1454.0,1789.3 1375.8,1789.3 1374.5,2010.0 915.0,2010.0 917.4,1893.8 1096.3,1897.7 1096.7,1762.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0440/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28763819572683,34.995675115775036]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28431036845555,34.99445855717475]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28610672201759,34.9911140955538]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28943454928887,34.99233065415408]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0441/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_018 p441","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0441/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0441","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"208.8,1861.6 187.4,0.0 1383.0,0.0 1354.3,12.8 1362.7,1051.6 1650.0,1047.9 1650.0,1865.6 208.8,1861.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0441/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1248.0,275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2828091,34.9933358]}},{"type":"Feature","properties":{"resourceCoords":[188.0,275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2849825,34.9941332]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0442/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_018 p442","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0442/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0442","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1044.4 -0.0,-0.0 28.7,-0.0 23.6,236.4 966.2,256.8 1064.5,0.0 1650.0,0.0 1650.0,2010.0 110.2,2010.0 110.0,1861.7 283.6,1863.6 290.2,1041.5 -0.0,1044.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0442/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28235025691531,34.99369628111414]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27899678276425,34.992475232094165]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28079972314622,34.98910491376075]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28415319729727,34.99032596278072]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0443/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_018 p443","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0443/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0443","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,801.5 378.0,798.0 383.6,110.8 940.7,104.2 941.2,0.0 1650.0,0.0 1650.0,1651.8 1481.9,1898.8 1481.5,1748.2 939.2,1741.5 939.8,2010.0 -0.0,2010.0 -0.0,801.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0443/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[378.0,798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2938956,35.0037421]}},{"type":"Feature","properties":{"resourceCoords":[1480.0,798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2914797,35.0040659]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0444/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_018 p444","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0444/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0444","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"948.1,266.8 943.7,0.0 1486.3,0.0 1514.7,1821.0 409.4,1830.0 408.6,1772.3 321.4,1773.2 346.9,274.1 948.1,266.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0444/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2943984522901,35.00195632085175]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29077615875303,35.00240444722293]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29011440525842,34.998764357186914]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29373669879548,34.99831623081573]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0445/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_018 p445","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0445/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0445","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1472.9,58.5 1473.2,246.2 1605.4,247.4 1607.2,60.0 1650.0,60.5 1650.0,428.6 1496.8,636.4 1551.5,701.6 1474.7,818.6 1479.6,2010.0 -0.0,2010.0 -0.0,748.5 278.6,750.8 289.0,0.0 375.5,0.0 375.8,57.1 1472.9,58.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0445/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29374723879053,34.99874839844652]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29010310438534,34.99922808674912]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28939477067733,34.995565905525076]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29303890508253,34.99508621722248]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0446/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_018 p446","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0446/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0446","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,390.8 259.4,397.1 263.2,279.0 1341.2,296.4 1430.4,356.8 864.7,1753.5 -0.0,1615.5 -0.0,390.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0446/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[381.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2921569,34.9949824]}},{"type":"Feature","properties":{"resourceCoords":[1486.0,400.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2897348,34.9953341]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0447/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_018 p447","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0447/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0447","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"505.7,1601.2 -0.0,833.6 -0.0,148.7 724.5,126.1 724.3,0.0 1188.3,0.0 1187.9,132.5 1012.1,128.7 1011.0,242.8 1461.2,243.1 1458.8,606.1 1533.4,606.7 1533.4,1625.1 505.7,1601.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0447/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28944151008082,34.99282394402979]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28605396841863,34.991587481964004]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28787965352484,34.988182899986526]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29126719518703,34.98941936205231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0448/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_018 p448","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0448/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0448","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,585.8 -0.0,-0.0 77.2,0.0 78.3,103.2 1353.8,106.6 1368.5,1784.4 1284.8,1604.5 413.4,2010.0 78.4,2010.0 75.0,586.2 -0.0,585.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0448/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[610.0,1103.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2862239,34.9893832]}},{"type":"Feature","properties":{"resourceCoords":[1481.0,109.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2835391,34.9903942]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0449/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_018 p449","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0449/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0449","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,367.9 1545.5,370.1 1546.1,0.0 1650.0,0.0 1650.0,2010.0 48.5,2010.0 -0.0,1904.0 -0.0,367.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0449/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28360141905834,34.99085939919472]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2802584551129,34.989646728408054]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28204896124427,34.9862868541682]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28539192518971,34.98749952495486]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0451/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_018 p451","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0451/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0451","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"834.7,0.0 834.2,168.8 1582.7,166.5 1578.1,1541.9 1650.0,1542.5 1650.0,2010.0 -0.0,2010.0 -0.0,-0.0 834.7,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0451/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29479647406261,34.98784831876021]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29114913275946,34.9879190326053]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29104472703712,34.98425313119047]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29469206834027,34.98418241734538]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0452/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_018 p452","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0452/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0452","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"874.5,0.0 870.8,650.3 1068.8,648.0 1069.4,268.9 1161.5,271.2 1157.2,647.0 1436.1,643.7 1554.4,1125.3 1151.7,1123.5 1141.5,2010.0 185.6,2010.0 186.9,1552.3 114.8,1551.4 124.3,0.0 874.5,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0452/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29157163208079,34.987917462690675]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28793754447692,34.987997152732625]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28781988575845,34.9843445742162]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29145397336232,34.98426488417425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0453/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_018 p453","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0453/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0453","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"395.4,1111.3 273.8,639.9 -0.0,646.2 -0.0,185.1 45.2,184.9 -0.0,102.0 -0.0,-0.0 99.5,0.0 199.2,192.4 323.1,0.0 1650.0,0.0 1650.0,2010.0 -0.0,2010.0 -0.0,1114.0 395.4,1111.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0453/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28900689595126,34.98799430742432]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28530408220884,34.98804023431576]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28523627324104,34.98431858017477]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28893908698346,34.984272653283334]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0455__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_018 p455 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"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":"4712.4"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0455__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0455","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.6,0.0 -0.0,170.4 -0.0,1107.4 1013.8,1094.0 1015.4,1161.3 1105.6,1159.8 1104.7,1092.7 1303.1,1090.1 1650.0,892.3 1650.0,396.7 845.2,13.9 845.7,45.6 741.2,0.0 64.6,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0455__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,1090.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2896396,34.9876423]}},{"type":"Feature","properties":{"resourceCoords":[1303.0,1090.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2885535,34.9876436]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0456/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_018 p456","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0456/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0456","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2010.0 0.0,-0.0 1295.2,0.0 1650.0,80.7 1650.0,2010.0 -0.0,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0456/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29333455830132,34.9926676244217]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28965274996706,34.99271956723917]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28957605429815,34.98901924056648]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29325786263242,34.98896729774901]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0457__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_018 p457 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"5791.6"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0457__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0457","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1524.0,1269.9 1532.1,46.1 972.3,51.5 976.0,1269.9 1524.0,1269.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0457__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1524.0,1269.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2939095,35.0101945]}},{"type":"Feature","properties":{"resourceCoords":[976.0,1269.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2950884,35.0100336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0458/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_018 p458","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0458/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0458","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1499.2,1705.1 -0.0,1701.3 -0.0,356.2 229.2,291.2 962.0,286.0 962.9,0.0 1650.0,0.0 1634.5,1537.3 1502.5,1538.4 1499.2,1705.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0458/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[962.0,1039.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2936355,35.0088171]}},{"type":"Feature","properties":{"resourceCoords":[962.0,286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2939095,35.0101945]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0459/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_018 p459","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0459/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0459","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.9,689.1 1507.3,1238.3 1507.2,1248.2 1496.6,2010.0 -0.0,2010.0 -0.0,1816.3 133.0,1850.9 167.4,137.2 -0.0,136.1 -0.0,0.0 1407.2,-0.0 1402.2,687.9 1504.9,689.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0459/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[164.0,1224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2946088,35.0074264]}},{"type":"Feature","properties":{"resourceCoords":[164.0,674.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2933871,35.0075977]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0460/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_018 p460","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0460/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0460","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1650.0,2010.0 -0.0,2010.0 -0.0,949.2 416.8,966.0 435.6,59.5 -0.0,49.5 -0.0,0.0 882.7,0.0 860.3,557.5 1650.0,589.1 1650.0,1523.4 1448.2,1518.7 1447.0,1676.6 1650.0,1678.4 1650.0,2010.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0460/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.28130652685176,35.01257649999872]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27791616536705,35.01140273060035]}},{"type":"Feature","properties":{"resourceCoords":[1650.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.27964969352668,35.007996122976074]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2010.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.2830400550114,35.009169892374445]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0461/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_018 p461","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"}],"created":"2026-09-22T03:18:53Z","modified":"2026-09-22T03:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0461/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0461","type":"ImageService3","width":1650,"height":2010},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.0,1879.8 0.0,1880.8 0.0,-0.0 1119.5,0.0 1157.9,1611.7 1493.3,1602.0 1490.2,1397.7 1650.0,1394.2 1650.0,2010.0 255.6,2010.0 250.1,1420.3 137.9,1422.5 130.0,1879.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g08291195504:08291_04_1955-0461/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[170.0,920.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.2819472,35.006878]}},{"type":"Feature","properties":{"resourceCoords":[812.0,1829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.279526,35.0072617]}}]}}]}