{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08291_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Chattanooga, Tennessee | 1889 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"73"},{"label":"placed","value":"17"},{"label":"unplaced","value":"56"},{"label":"fit sources","value":"georef-snap 7, georef 6, snap:0 3, streets-candidate 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"13 sheet(s) cut into 42 panels"},{"label":"unplaced pages","value":"p10 (tier 3, 35.04690,-85.31673 +/-559m); p11 (tier 3, 35.04521,-85.31382 +/-559m); p17__2 (tier 1, 35.04487,-85.30039 +/-192m); p18 (tier 3, 35.04298,-85.31510 +/-559m); p19 (tier 1, 35.04219,-85.31172 +/-261m); p21 (tier 3, 35.04016,-85.30584 +/-559m); p22 (tier 1, 35.03956,-85.31294 +/-255m); p23 (tier 3, 35.03827,-85.31588 +/-559m); p24 (tier 1, 35.03899,-85.31142 +/-250m); p25 (tier 1, 35.03622,-85.31134 +/-249m); p26 (tier 3, 35.03798,-85.30775 +/-100m); p27 (tier 3, 35.03544,-85.30906 +/-559m); p28 (tier 1, 35.03366,-85.31283 +/-246m); p29 (tier 1, 35.03284,-85.31579 +/-254m); p30__1 (tier 1, 35.02692,-85.31698 +/-188m); p30__2 (tier 1, 35.02749,-85.31626 +/-196m); p31__1 (tier 3, 35.02686,-85.32126 +/-559m); p31__2 (tier 1, 35.02628,-85.31913 +/-108m); p32__1 (tier 1, 35.03653,-85.30444 +/-243m); p32__2 (tier 1, 35.03559,-85.30431 +/-123m); p33__1 (tier 1, 35.04956,-85.32296 +/-100m); p33__2 (tier 1, 35.05162,-85.32173 +/-238m); p34 (tier 3, 35.04871,-85.32233 +/-559m); p35 (tier 3, 35.04627,-85.32354 +/-559m); p36 (tier 3, 35.04311,-85.32403 +/-559m); p37__1 (tier 3, 35.04164,-85.32261 +/-559m); p37__2 (tier 1, 35.04222,-85.31935 +/-100m); p38__1 (tier 1, 35.05551,-85.31554 +/-160m); p38__2 (tier 1, 35.05461,-85.31375 +/-222m); p38__3 (tier 1, 35.05357,-85.31643 +/-103m); p39 (tier 1, 35.05127,-85.30124 +/-262m); p40__1 (tier 4, 35.04753,-85.30652 +/-1516m); p40__2 (tier 4, 35.04753,-85.30652 +/-1516m); p40__3 (tier 4, 35.04753,-85.30652 +/-1516m); p41__1 (tier 1, 35.03350,-85.30308 +/-100m); p41__3 (tier 1, 35.03509,-85.30352 +/-100m); p41__4 (tier 1, 35.03423,-85.30275 +/-100m); p41__5 (tier 1, 35.03395,-85.30580 +/-100m); p41__6 (tier 1, 35.03458,-85.30387 +/-100m); p42__1 (tier 1, 35.04495,-85.29929 +/-100m); p42__2 (tier 1, 35.04611,-85.29464 +/-225m); p42__3 (tier 1, 35.04839,-85.29352 +/-100m); p43__1 (tier 4, 35.04753,-85.30652 +/-1516m); p43__2 (tier 4, 35.04753,-85.30652 +/-1516m); p43__3 (tier 4, 35.04753,-85.30652 +/-1516m); p44__1 (tier 4, 35.04753,-85.30652 +/-1516m); p44__2 (tier 4, 35.04753,-85.30652 +/-1516m); p44__3 (tier 4, 35.04753,-85.30652 +/-1516m); p44__4 (tier 4, 35.04753,-85.30652 +/-1516m); p44__5 (tier 4, 35.04753,-85.30652 +/-1516m); p45__1 (tier 4, 35.04753,-85.30652 +/-1516m); p45__2 (tier 4, 35.04753,-85.30652 +/-1516m); p45__3 (tier 4, 35.04753,-85.30652 +/-1516m); p45__4 (tier 4, 35.04753,-85.30652 +/-1516m); p45__5 (tier 4, 35.04753,-85.30652 +/-1516m); p45__6 (tier 4, 35.04753,-85.30652 +/-1516m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0012","type":"ImageService3","width":1638,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1578.4,1175.9 1579.4,1177.0 1590.5,1485.8 941.5,1503.6 943.9,1575.7 999.4,1716.3 899.0,1624.5 830.5,1611.9 786.1,1625.8 730.2,1652.0 280.7,1882.1 116.9,1553.5 111.6,1512.8 95.0,1029.0 91.7,835.9 87.2,156.9 1569.1,132.5 1573.3,317.1 1596.1,316.9 1578.4,1175.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3044174,35.0461243]}},{"type":"Feature","properties":{"resourceCoords":[1638.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3059689,35.0434738]}},{"type":"Feature","properties":{"resourceCoords":[1638.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3098804,35.0450085]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3083289,35.047659]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0013","type":"ImageService3","width":1642,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"25.6,1620.3 93.2,1876.6 1555.8,1784.5 1569.4,129.4 1619.0,100.5 1619.0,62.8 1574.0,62.8 316.2,78.8 185.2,81.2 188.6,1594.6 1.0,1596.2 1.0,1619.5 25.6,1620.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[579.0,1594.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30540425775855,35.04340134391444]}},{"type":"Feature","properties":{"resourceCoords":[995.0,1594.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30459363479882,35.04309482614145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0014","type":"ImageService3","width":1638,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"789.2,1905.1 593.6,1903.8 103.2,1909.2 119.7,674.3 121.7,427.0 22.2,476.0 12.8,455.9 121.9,402.1 124.4,85.3 846.5,94.4 1560.4,98.7 1563.2,536.9 1559.5,1388.2 1560.1,1482.0 1545.7,1575.6 1497.3,1706.7 1481.9,1770.3 1476.8,1916.4 789.2,1905.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1554.0,791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30365660939803,35.0478662536148]}},{"type":"Feature","properties":{"resourceCoords":[1554.0,1368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30416991055938,35.04693442250854]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0015","type":"ImageService3","width":1642,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.1,1742.0 57.8,1677.9 106.6,1545.5 121.2,1451.0 120.7,1356.4 125.2,497.1 122.7,54.8 239.2,56.1 239.3,34.5 1386.0,54.3 1468.3,143.7 1447.0,414.6 1500.2,532.9 1436.3,533.3 1437.6,829.0 1444.8,1364.2 1439.0,1442.7 1614.8,1467.6 1569.0,1472.2 1517.1,1731.6 1563.0,1871.1 1495.5,1885.4 1495.3,1909.7 1472.1,1922.8 1472.5,1885.2 1427.5,1884.7 168.0,1888.4 36.9,1889.5 42.1,1742.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[140.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30362433751962,35.04782080751906]}},{"type":"Feature","properties":{"resourceCoords":[1441.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30108097850558,35.046883693902195]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p16","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0016","type":"ImageService3","width":1638,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.9,1889.2 811.0,1894.0 1522.0,1894.0 1637.0,1894.5 1637.0,1873.2 1611.7,1873.0 1551.4,1049.8 1626.4,540.0 1579.4,127.8 1540.0,187.5 1497.8,131.8 927.4,142.9 839.5,133.2 785.2,32.9 300.1,30.0 298.2,24.9 197.0,25.3 91.8,25.8 91.6,440.7 94.3,502.5 10.6,544.4 9.0,843.0 1.0,843.9 1.0,1083.5 22.1,1125.8 40.0,1203.2 62.3,1206.2 93.1,1267.5 91.9,1889.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[811.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3044327,35.0495065]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3030281,35.0489796]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0017__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 | 1889 | sanborn08291_002 p17 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.20"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3108.0"},{"label":"split_canvas_w","value":"6568.0"},{"label":"split_canvas_h","value":"4808.0"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0017__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0017","type":"ImageService3","width":1642,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1598.4,1727.9 1574.9,806.2 1165.9,816.6 1150.8,974.8 1150.4,994.0 1148.9,994.0 1148.5,997.9 57.5,994.4 58.9,1957.1 322.5,1960.9 1415.5,1956.8 1579.2,1886.2 1507.4,1830.3 1584.0,1805.2 1598.4,1727.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0017__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,777.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29944490033255,35.04453146266627]}},{"type":"Feature","properties":{"resourceCoords":[1642.0,777.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29604282446276,35.043322429988194]}},{"type":"Feature","properties":{"resourceCoords":[1642.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.29711627043639,35.04126907294476]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30051834630618,35.042478105622834]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.60"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0002","type":"ImageService3","width":1645,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1560.2,67.0 1600.6,66.8 1608.5,539.9 1608.5,1521.7 1619.0,1521.7 1622.6,1928.9 1577.1,1957.5 652.6,1955.1 117.8,1881.2 56.9,813.4 127.0,144.3 450.7,26.2 1520.5,25.1 1560.2,67.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1103.0,540.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3097291,35.0557012]}},{"type":"Feature","properties":{"resourceCoords":[1103.0,67.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3086837,35.0557241]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.37"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0020","type":"ImageService3","width":1638,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.7,228.8 115.5,132.2 1588.7,76.6 1637.0,368.9 1637.0,372.4 1596.5,1942.0 52.9,1917.4 30.7,228.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0020/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30938222256154,35.04348475316758]}},{"type":"Feature","properties":{"resourceCoords":[1638.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30606998800974,35.04219683283681]}},{"type":"Feature","properties":{"resourceCoords":[1638.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3079572019928,35.03889729790943]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1979.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3112694365446,35.0401852182402]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0003","type":"ImageService3","width":1651,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1445.8,1956.8 110.8,1950.3 110.8,1960.7 100.2,1960.6 106.3,978.5 101.3,505.3 60.9,505.2 21.4,463.1 25.4,463.1 15.7,62.4 108.2,47.1 108.5,35.5 809.6,37.0 1440.8,47.2 1508.2,49.5 1497.3,196.3 1510.0,489.8 1506.4,986.5 1501.9,1549.8 1491.6,1958.2 1445.8,1958.3 1445.8,1956.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,977.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30964463208808,35.053517804964976]}},{"type":"Feature","properties":{"resourceCoords":[808.0,517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3086284776722,35.05354514605848]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0004","type":"ImageService3","width":1645,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1216.0,311.1 1588.3,497.7 1644.0,522.5 1644.0,921.2 1623.7,920.8 1615.0,1224.2 1529.5,1854.7 1519.0,1884.2 874.9,1872.9 159.4,1870.5 159.0,1882.2 64.6,1897.8 37.4,706.8 101.2,176.1 218.6,81.1 471.6,28.9 1308.0,125.6 1216.0,311.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[883.0,1396.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3065351,35.0535853]}},{"type":"Feature","properties":{"resourceCoords":[172.0,907.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3055293,35.0548748]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0041__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 | 1889 | sanborn08291_002 p41 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.46"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1915.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4584.8"},{"label":"split_canvas_h","value":"3776.0"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0041__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0041","type":"ImageService3","width":1625,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"927.7,934.0 1031.2,934.0 1563.7,905.2 1565.9,122.1 1255.8,20.4 947.3,91.0 577.9,23.8 517.7,75.1 608.8,150.1 513.6,291.0 602.5,342.2 503.8,418.9 546.3,852.9 927.7,934.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0041__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[478.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30457195397321,35.03527217108484]}},{"type":"Feature","properties":{"resourceCoords":[1625.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.3022930053249,35.03444171354261]}},{"type":"Feature","properties":{"resourceCoords":[1625.0,944.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30312188057427,35.03289510660397]}},{"type":"Feature","properties":{"resourceCoords":[478.8,944.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.30540082922256,35.0337255641462]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0042__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p42 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.46"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4208.8"},{"label":"split_canvas_w","value":"4332.0"},{"label":"split_canvas_h","value":"3707.2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0042__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0042","type":"ImageService3","width":1638,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"160.1,1053.5 152.4,1053.4 109.6,1053.0 97.6,1053.0 95.0,1341.9 95.0,1865.0 88.3,1941.8 255.7,1967.7 265.9,1967.8 1043.5,1899.4 967.1,1817.9 1046.8,1775.1 1039.6,1286.8 640.0,1272.0 474.6,1155.3 331.9,1154.9 307.5,1135.0 336.2,1100.8 175.4,1088.7 160.1,1053.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0042__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[95.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3015955,35.0459317]}},{"type":"Feature","properties":{"resourceCoords":[95.0,1308.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3011091,35.046849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p5","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0005","type":"ImageService3","width":1651,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1496.7,1904.8 1505.0,1495.2 1506.3,1010.8 1514.0,533.0 1552.2,533.0 1629.2,533.1 1629.2,472.0 1629.2,413.6 1352.2,274.3 808.4,1.0 738.2,1.0 726.5,18.3 654.5,1.0 342.9,1.0 342.0,19.0 175.2,19.0 175.4,53.5 113.5,52.1 105.0,349.4 21.3,966.9 11.0,995.8 78.4,998.2 67.3,1144.9 79.7,1438.3 75.4,1934.8 828.8,1941.6 1493.9,1956.4 1495.5,1956.4 1496.7,1904.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[799.0,1488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3085728,35.0509728]}},{"type":"Feature","properties":{"resourceCoords":[1514.0,533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3064083,35.0497384]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0006","type":"ImageService3","width":1634,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"133.3,1011.3 137.6,605.1 133.8,44.9 883.4,39.6 1546.8,43.7 1554.1,214.7 1558.3,482.2 1557.7,540.6 1562.8,1010.3 1559.8,1010.3 1546.8,1964.8 1532.6,1965.4 1502.7,1966.5 1501.9,1948.3 107.9,1945.2 88.1,1023.9 133.3,1011.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1571.0,1471.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31272619183636,35.049592634125936]}},{"type":"Feature","properties":{"resourceCoords":[856.0,75.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30965274260335,35.05093943118091]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0007","type":"ImageService3","width":1651,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.4,1499.5 105.7,544.3 108.8,544.3 105.2,74.3 105.9,19.6 193.0,19.0 193.1,16.4 278.0,16.0 278.0,19.0 314.0,19.0 314.2,15.8 1484.4,9.9 1520.6,8.8 1523.0,981.0 1627.0,980.9 1627.0,1002.2 1605.8,1004.3 1585.5,1946.3 64.2,1950.7 45.3,1501.0 89.4,1499.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1523.0,981.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3126048,35.0470347]}},{"type":"Feature","properties":{"resourceCoords":[111.0,981.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.3126723,35.0496015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0008","type":"ImageService3","width":1633,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"138.2,1665.4 132.5,1490.7 133.5,1438.2 139.7,1022.0 138.4,529.8 143.5,44.4 182.4,44.2 397.6,43.2 502.4,42.7 1599.7,594.2 1585.7,633.1 1580.7,1002.8 1576.5,1049.1 1575.5,1500.2 1583.2,1942.0 1546.2,1942.8 228.4,1939.9 139.5,1938.6 138.2,1665.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[861.0,1500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30952995364217,35.048385954328594]}},{"type":"Feature","properties":{"resourceCoords":[1577.0,1500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30948509059188,35.04711076337089]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Chattanooga, Tennessee | 1889 | sanborn08291_002 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T21:32:38Z","modified":"2026-10-18T21:32:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0009","type":"ImageService3","width":1651,"height":1979},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"140.9,1934.6 37.6,1932.5 56.5,967.6 55.4,537.8 62.8,99.0 67.6,54.0 562.2,62.6 622.7,65.8 667.4,74.2 720.8,116.8 765.2,242.3 782.1,95.3 813.3,31.9 1382.4,315.9 1515.3,44.0 1607.0,466.8 1603.7,1896.8 1527.9,1945.1 1199.3,1871.8 140.4,1955.8 140.9,1934.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd396m:g3964m:g3964cm:g3964cm_g082911889:08291_1889-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[68.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.30846344552685,35.0471268183846]}},{"type":"Feature","properties":{"resourceCoords":[66.0,1500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.31163539774707,35.04701731546942]}}]}}]}