{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01459_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"La Grange, Georgia | 1921 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"46"},{"label":"placed","value":"30"},{"label":"unplaced","value":"16"},{"label":"fit sources","value":"georef-snap 21, georef 7, snap:0 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 21 panels"},{"label":"unplaced pages","value":"p18__1 (tier 1, 33.04552,-85.01617 +/-185m); p25 (tier 1, 33.04969,-85.00711 +/-511m); p28__1 (tier 1, 33.01774,-85.05003 +/-294m); p29__3 (tier 1, 33.03320,-85.01928 +/-181m); p30__1 (tier 1, 33.02991,-85.01749 +/-369m); p30__2 (tier 1, 33.02516,-85.02227 +/-323m); p31__2 (tier 1, 33.03510,-85.03245 +/-142m); p31__3 (tier 1, 33.03454,-85.03412 +/-259m); p31__4 (tier 1, 33.03533,-85.04230 +/-109m); p32__1 (tier 2, 33.02740,-85.04527 +/-1255m); p32__3 (tier 1, 33.02968,-85.03055 +/-128m); p33__1 (tier 1, 33.01890,-85.05173 +/-216m); p33__2 (tier 2, 33.02195,-85.05771 +/-100m); p34__1 (tier 1, 33.02102,-85.04540 +/-336m); p7 (tier 2, 33.03267,-85.03190 +/-100m); p8 (tier 2, 33.03398,-85.02778 +/-158m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1181.0,1817.3 1602.7,1797.0 1594.7,1592.9 1576.1,1596.2 1579.5,1312.4 1594.8,1309.0 1590.2,1210.4 1577.5,1127.4 1565.8,958.3 1495.3,488.9 1519.8,466.9 1528.5,460.4 1312.8,29.1 1274.3,41.5 1271.7,33.0 1103.3,49.8 1024.4,27.4 817.9,55.1 564.0,18.1 208.8,37.6 208.3,26.3 1.0,56.6 1.0,56.9 25.1,59.1 120.1,54.2 147.2,52.8 47.4,1088.5 51.3,1099.7 64.6,1166.5 66.4,1232.1 53.0,1321.8 31.1,1519.7 27.6,1669.9 34.6,1877.0 110.3,1872.2 555.5,1872.9 1181.3,1819.8 1181.0,1817.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1108.0,1409.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0248572439001,33.04026067647117]}},{"type":"Feature","properties":{"resourceCoords":[49.0,1662.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02950006953968,33.03951145299674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p11","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.1,1469.0 151.0,1469.0 157.4,1469.0 174.9,1808.2 467.1,1812.9 467.1,1822.6 815.1,1852.4 815.0,1810.5 1019.3,1804.5 1019.3,1828.2 1368.7,1830.3 1384.5,1867.0 1401.4,1912.0 1519.0,903.4 1492.4,904.2 1488.5,904.4 1579.5,878.7 1574.5,671.6 1552.6,668.5 1535.3,556.2 1553.0,235.7 1541.6,74.7 1484.4,97.3 1483.9,100.9 1221.5,60.3 1218.8,35.0 187.0,93.3 188.6,78.1 56.6,65.1 33.1,392.6 1.0,397.0 1.0,417.9 38.5,422.9 89.0,428.4 145.1,1469.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[467.0,1469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03348,33.0433446]}},{"type":"Feature","properties":{"resourceCoords":[129.0,1469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0349756,33.043375]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.0,1164.0 69.0,1036.9 24.8,635.8 89.9,95.0 412.9,52.2 822.3,60.0 1052.2,15.1 1216.6,53.2 1349.8,36.1 1349.6,57.2 1388.9,62.7 1431.8,67.7 1440.7,68.8 1490.7,1134.0 1503.2,1134.1 1518.7,1481.4 1528.2,1481.6 1498.5,1847.5 1472.6,1848.1 843.8,1852.8 433.2,1855.3 60.6,1849.7 67.5,1526.5 34.6,1528.2 34.0,1164.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1465.0,1487.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03504170306422,33.04209547542541]}},{"type":"Feature","properties":{"resourceCoords":[841.0,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03776677573786,33.04084776117103]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"509.1,90.0 913.4,83.1 1532.5,71.7 1535.5,418.3 1535.3,513.9 1537.8,628.8 1538.1,987.8 1538.2,1125.8 1612.0,1489.8 1612.0,1810.7 869.3,1816.7 495.1,1819.6 495.6,1849.1 186.3,1840.8 184.1,1592.0 178.3,1099.9 178.3,961.6 163.5,770.1 155.7,523.5 151.0,423.5 142.2,88.5 509.1,90.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[181.0,1093.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04109650167295,33.03716807281692]}},{"type":"Feature","properties":{"resourceCoords":[914.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03775338992695,33.04079038981845]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.4,38.0 64.4,408.5 73.5,408.6 77.2,831.9 84.6,832.0 85.3,1039.2 84.5,1497.2 82.3,1554.3 86.4,1858.3 445.1,1853.4 817.4,1847.5 817.5,1841.2 1493.5,1881.5 1573.2,1823.7 1607.3,1436.2 1443.6,1291.1 1439.5,1291.3 1421.2,1291.6 1466.8,1174.5 1473.2,1039.8 1530.5,893.0 1438.9,893.4 1439.9,649.9 1568.4,648.4 1564.8,528.3 1612.0,491.0 1612.0,1.0 1080.7,1.0 1090.4,47.9 1065.2,47.6 1056.6,1.0 1002.2,1.0 1001.4,47.0 258.9,39.9 55.4,38.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[265.0,409.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03815551208352,33.03307168023002]}},{"type":"Feature","properties":{"resourceCoords":[834.0,902.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03567608931827,33.03123097276322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"132.9,1630.8 114.1,1631.5 157.3,1352.1 172.8,1350.8 182.1,1253.0 181.2,1169.4 193.3,1001.0 189.7,528.3 216.9,510.1 226.4,504.9 74.2,49.5 34.5,56.4 33.1,47.5 64.1,48.8 189.6,16.5 537.0,65.1 673.9,30.2 907.9,64.0 1233.1,36.3 1550.7,67.2 1560.3,187.9 1578.0,189.8 1532.9,594.7 1514.1,754.7 1494.2,974.3 1467.8,1202.4 1455.7,1204.1 1531.1,1495.7 1580.9,1500.6 1552.2,1865.6 1429.4,1831.4 1289.2,1710.2 1153.3,1697.0 1136.2,1758.4 983.1,1769.5 680.3,1857.8 680.4,1846.1 573.8,1874.6 352.7,1854.2 112.2,1833.0 132.9,1630.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1494.0,850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.01720311181309,33.04283526625568]}},{"type":"Feature","properties":{"resourceCoords":[197.0,1304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02264092203386,33.04072489330259]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1525.6,12.5 1520.5,329.4 1527.4,663.0 1531.5,762.6 1538.0,1008.1 1551.6,1198.9 1550.9,1336.7 1553.8,1826.7 1213.8,1832.0 902.8,1835.0 766.0,1836.3 766.2,1870.3 704.9,1846.3 423.7,1838.1 371.5,1788.2 123.6,1797.5 120.8,1834.0 84.3,1838.5 46.3,1448.9 74.4,1400.8 65.2,1152.9 31.3,949.4 30.4,584.5 76.0,346.2 47.8,65.9 306.9,67.3 334.6,165.2 495.6,183.4 626.9,180.4 629.7,143.9 1206.6,156.3 1322.3,113.6 1494.0,120.6 1493.3,14.3 1525.6,12.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.0,1836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.041176152595,33.03529730240812]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,1016.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04109407577816,33.038328607309495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.2,830.6 119.8,832.2 48.9,997.1 42.3,1023.5 42.4,1067.0 74.5,1069.7 80.8,1592.9 157.5,1674.3 363.5,1717.4 363.9,1701.1 1539.5,1727.6 1542.1,1480.6 1544.4,1354.8 1537.9,1237.3 1533.4,1237.1 1418.2,638.8 1410.4,618.2 1373.0,185.3 1351.1,184.1 1349.1,210.2 823.7,161.9 809.1,156.9 810.6,111.1 725.9,16.6 726.0,1.0 1.0,1.0 1.0,97.7 34.6,100.3 84.5,179.1 111.5,106.2 127.1,107.4 111.2,830.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1332.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02471053803905,33.0324130131488]}},{"type":"Feature","properties":{"resourceCoords":[376.0,881.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02885803297565,33.02978501065676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p18 [2]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1294.3,40.0 1294.1,57.6 889.9,52.8 730.0,50.0 511.2,51.9 283.4,48.3 280.5,36.4 1.0,139.2 1.0,189.2 36.0,188.4 34.0,913.5 67.2,1045.2 404.1,1051.8 405.4,1055.0 407.7,1055.0 407.7,1060.8 437.3,1135.9 452.4,1340.9 427.1,1494.8 460.6,1751.0 448.9,1860.7 736.5,1841.4 741.8,1860.5 1105.8,1876.9 1108.2,1866.4 1280.2,1856.8 1280.2,1854.2 1551.8,1861.2 1532.5,1250.6 1611.9,723.1 1592.3,166.6 1551.9,100.8 1555.5,60.5 1412.5,27.9 1412.5,18.6 1294.3,40.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[730.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.017156,33.043189]}},{"type":"Feature","properties":{"resourceCoords":[1170.0,1583.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.010415,33.044797]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"209.0,1835.6 77.8,1820.5 82.3,1769.4 81.4,263.6 88.4,241.8 229.6,244.3 308.1,95.3 445.1,40.0 607.9,24.2 828.9,58.6 1248.5,33.6 1259.5,55.2 1411.6,61.3 1407.8,39.6 1422.3,39.5 1429.7,64.8 1535.0,103.8 1573.5,403.9 1597.3,1120.4 1575.8,1605.7 1543.3,1624.0 1555.8,1854.3 1498.5,1875.8 1497.9,1879.5 1237.4,1834.7 1235.2,1809.5 207.2,1850.7 209.0,1835.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[324.0,874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03401779867592,33.0521090210196]}},{"type":"Feature","properties":{"resourceCoords":[1159.0,1684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03033361228974,33.04906589319428]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"800.4,1808.1 146.0,1813.0 143.4,1588.2 145.9,1401.2 147.4,723.4 197.3,722.2 254.4,17.6 811.8,30.2 811.8,49.3 1497.2,112.6 1496.4,325.9 1492.0,1387.7 1485.2,1744.2 1487.2,1792.8 800.4,1808.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1495.0,697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0320088,33.0407912]}},{"type":"Feature","properties":{"resourceCoords":[146.0,1813.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.035082,33.0387349]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"234.8,228.6 430.7,415.1 347.7,410.1 685.7,498.0 684.6,415.1 955.1,406.8 1022.8,105.2 1022.8,53.0 1331.4,63.8 1331.1,34.4 1501.1,34.4 1513.6,404.7 1522.7,404.7 1530.3,827.8 1537.8,827.9 1540.3,1034.9 1543.8,1492.8 1542.1,1549.9 1549.0,1853.8 1269.0,1861.6 765.5,1862.5 746.7,1864.2 532.4,1864.7 182.9,1855.0 124.2,1867.1 112.2,1869.6 74.7,1878.8 27.2,695.5 72.0,687.2 85.1,248.1 124.5,210.8 234.7,194.0 234.8,228.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1338.0,407.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03981061535683,33.033086109859155]}},{"type":"Feature","properties":{"resourceCoords":[1031.0,407.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04116132764317,33.03310885266745]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p21","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"197.4,1304.6 170.7,1304.5 176.2,903.8 173.0,855.0 163.0,522.9 160.2,475.0 165.2,98.0 525.6,92.0 899.9,84.9 899.9,78.6 1579.4,117.2 1572.0,122.5 1574.5,843.1 1475.4,851.8 1440.1,1495.7 1334.0,1533.9 1335.7,1658.9 1302.2,1626.3 1293.5,1534.5 1128.0,1529.4 1021.5,1810.3 996.2,1843.7 911.8,1848.5 970.9,1601.4 969.2,1480.1 833.1,1478.3 680.2,1590.7 492.3,1560.2 401.4,1631.3 283.7,1632.9 198.5,1738.1 197.4,1304.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[173.0,855.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.039021,33.024956]}},{"type":"Feature","properties":{"resourceCoords":[899.0,524.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.035824,33.026134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.8,1169.9 70.8,1108.5 63.2,1064.0 48.1,1003.8 31.1,949.3 85.3,147.8 140.4,135.1 211.4,121.2 561.6,135.4 776.4,137.6 795.3,136.0 1299.9,141.4 1580.8,137.1 1573.6,512.9 1576.0,560.7 1584.0,891.8 1586.9,940.5 1579.0,1339.9 1605.7,1340.2 1604.1,1772.4 1598.9,1778.7 1602.5,1889.5 1595.0,1890.0 1595.0,1912.0 1572.8,1912.0 1573.3,1866.1 1317.4,1729.1 1317.7,1719.2 1046.8,1719.7 790.8,1706.3 766.2,1718.4 687.3,1857.6 155.6,1699.7 154.8,1667.7 75.1,1669.2 73.8,1169.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[78.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04564182178981,33.02394502526489]}},{"type":"Feature","properties":{"resourceCoords":[1581.0,1332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03904903056643,33.02333600340606]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.2,1812.4 170.3,1744.0 168.5,1609.4 65.9,1547.2 35.9,1282.0 68.5,1188.1 89.4,787.6 78.0,230.4 236.3,235.8 264.3,78.2 440.5,16.0 990.7,34.6 1188.1,147.9 1555.3,83.0 1596.3,1293.7 1578.5,1297.9 1540.4,1912.0 1446.1,1912.0 1443.3,1903.8 1277.7,1882.9 1277.8,1884.3 1091.7,1837.6 1109.7,1793.6 1038.9,1787.2 1039.5,1800.6 759.2,1818.6 759.4,1825.8 607.7,1840.8 607.8,1843.3 462.3,1838.6 462.2,1829.9 81.8,1888.3 92.2,1812.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0023/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.05224218576159,33.03249544387136]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.04535205363653,33.03241570494298]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.04546406202122,33.025516347968995]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.05235419414628,33.02559608689738]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"103.6,403.8 102.8,130.9 346.4,81.2 484.4,108.8 1277.0,98.7 1298.9,140.1 1485.8,138.4 1488.9,205.7 1529.4,258.5 1566.8,258.9 1566.0,333.6 1434.9,354.6 1457.9,646.5 1562.2,688.8 1559.9,898.1 1592.2,1018.0 1556.2,1242.0 1550.3,1780.2 1505.1,1813.4 1251.1,1799.4 992.9,1819.1 816.6,1873.2 607.4,1867.2 372.6,1797.4 354.9,1715.0 169.8,1541.0 76.2,1529.8 60.5,1236.0 80.0,1230.9 101.6,859.5 90.9,857.0 83.3,681.3 80.7,681.2 91.5,404.0 103.6,403.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[986.0,1505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.00528704184822,33.04226339507858]}},{"type":"Feature","properties":{"resourceCoords":[545.0,1801.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.00717157376921,33.041178087908634]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"41.8,1288.1 51.2,1288.7 63.9,386.4 45.5,386.4 35.4,8.5 45.7,8.2 125.6,4.9 127.1,37.0 663.9,184.1 740.1,42.8 764.5,30.1 1021.6,38.1 1293.4,31.9 1293.3,41.8 1553.0,173.8 1553.5,219.9 1575.7,219.4 1582.8,196.8 1584.0,220.2 1600.8,533.7 1574.5,1792.7 1524.2,1834.6 1284.8,1826.8 1061.7,1877.3 972.8,1854.2 819.1,1884.3 730.0,1857.5 374.1,1893.5 226.4,1875.7 199.6,1839.6 165.2,1840.6 41.8,1288.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1027.0,389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04142783244929,33.02063693377709]}},{"type":"Feature","properties":{"resourceCoords":[1287.0,1316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04040758841452,33.017210510376174]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"425.1,1847.8 275.7,1641.1 325.6,1627.8 155.1,1081.9 163.3,1067.8 222.5,902.9 264.9,880.4 274.2,860.5 263.1,798.0 228.6,651.5 175.1,439.2 197.1,429.8 104.2,190.6 113.8,121.2 482.3,65.7 482.4,74.1 623.2,79.2 623.2,76.7 770.1,62.6 770.0,55.6 1041.5,39.0 1040.9,25.9 1109.5,32.4 1091.9,75.2 1272.0,121.5 1272.0,120.0 1432.2,141.0 1434.9,149.0 1526.2,149.3 1513.3,348.3 1530.5,402.5 1545.6,462.4 1553.3,506.6 1556.4,567.7 1559.0,1064.7 1548.8,1064.8 1551.9,1439.8 1541.2,1439.7 1540.7,1472.9 1283.4,1586.7 1284.8,1478.4 556.9,1866.6 441.9,1867.8 440.8,1869.5 425.1,1847.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1289.0,801.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0468501711834,33.02312249830181]}},{"type":"Feature","properties":{"resourceCoords":[1289.0,1083.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.04686299293664,33.02207956109967]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p28 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1529.4,37.9 1520.8,66.2 1445.4,62.7 1435.3,53.6 1208.2,99.8 678.2,36.8 387.1,27.9 358.3,42.7 352.5,30.4 283.9,58.3 219.0,60.1 138.4,143.2 119.7,269.5 95.8,277.4 53.4,719.2 66.0,967.9 504.0,933.9 637.8,953.6 1084.5,1786.7 1193.0,1874.8 1482.7,1868.2 1557.7,1848.9 1601.7,1800.2 1470.5,1541.3 1523.3,1535.8 1437.8,952.9 1448.4,939.9 1535.2,781.7 1581.9,765.6 1594.7,746.9 1593.4,681.5 1581.8,526.9 1561.6,302.3 1585.4,296.3 1529.4,37.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1422.0,1521.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.05157607548549,33.02010079551715]}},{"type":"Feature","properties":{"resourceCoords":[739.0,182.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.05530723483737,33.02449904254616]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p29 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3098.0"},{"label":"split_canvas_h","value":"6504.0"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"24.0,1552.0 271.3,1557.9 374.3,1507.8 685.3,1507.5 694.5,658.1 720.5,614.5 706.6,211.6 663.1,174.5 524.1,169.3 455.3,110.0 218.7,111.0 141.7,184.9 128.6,184.7 147.2,594.4 148.2,594.4 140.8,1063.6 156.2,1063.8 138.6,1393.5 33.4,1447.2 25.9,1446.4 24.0,1552.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[146.9,612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0207187174821,33.03520816039355]}},{"type":"Feature","properties":{"resourceCoords":[146.9,1073.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02069676119123,33.03350962708731]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p29 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3098.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3354.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1136.1,1867.7 1135.7,1853.5 1512.7,1836.0 1565.0,1787.6 1592.1,1455.4 1555.2,1287.3 1586.1,940.2 1531.2,559.2 1554.7,204.6 1593.4,205.2 1594.5,97.5 1442.5,81.6 1442.9,60.4 824.9,29.8 865.5,468.3 873.5,489.1 994.0,1094.7 998.5,1094.8 1005.8,1213.9 1004.3,1341.5 1003.2,1599.9 1002.9,1684.5 1116.0,1867.6 1136.1,1867.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0029__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[999.4,1597.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02375908431866,33.02670452111205]}},{"type":"Feature","properties":{"resourceCoords":[999.4,1341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02376225492146,33.02762953975002]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p3","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"662.0,1762.8 267.4,1776.0 265.2,1728.2 270.6,1377.5 271.0,333.0 271.0,42.0 667.1,31.3 667.1,77.3 1344.3,83.4 1374.8,154.6 1402.6,242.0 1407.2,242.0 1407.0,243.9 1403.2,243.9 1412.8,273.9 1435.2,401.6 1435.7,526.4 1406.5,696.4 1355.9,1071.8 1342.8,1357.2 1347.0,1751.3 662.0,1762.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[271.0,698.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0320088,33.0407912]}},{"type":"Feature","properties":{"resourceCoords":[271.0,42.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0319769,33.0420464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0030__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p30 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3970.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3681.6"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0030__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.2,1023.6 66.3,1034.7 43.5,1377.9 76.1,1563.3 74.5,1873.4 188.2,1900.5 152.1,1912.0 154.1,1912.0 991.0,1889.3 1451.2,1910.0 1458.1,1887.9 1556.6,1882.5 1535.4,1529.1 1566.3,1422.7 1560.9,1305.3 1541.2,1305.7 1426.8,1129.2 1425.4,1046.7 1425.2,1038.7 260.3,1044.5 260.4,1060.6 55.2,1023.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0030__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1432.0,1569.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02375587109162,33.024760712033476]}},{"type":"Feature","properties":{"resourceCoords":[267.0,1569.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0288918248134,33.0248403220541]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0031__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p31 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3321.6"},{"label":"split_canvas_h","value":"3892.4"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0031__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"192.5,789.9 110.6,784.6 443.9,872.9 443.2,791.1 710.3,784.1 778.5,486.8 779.8,190.2 443.2,193.0 135.4,193.7 1.0,194.0 1.0,228.0 26.6,238.2 28.1,566.6 1.0,570.6 1.0,605.8 192.5,789.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0031__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[443.2,791.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.0426859,33.0331046]}},{"type":"Feature","properties":{"resourceCoords":[443.2,193.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.042645,33.0353399]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0032__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p32 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.09"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2763.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3688.8"},{"label":"split_canvas_h","value":"4122.0"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0032__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1452.5,945.9 1457.2,918.2 1517.5,743.7 1508.4,742.6 1468.5,1.0 1452.0,1.0 1430.1,76.8 1373.3,1.0 938.8,1.0 886.0,47.5 896.8,171.4 763.3,180.4 776.4,432.2 871.5,426.5 820.5,581.5 821.6,721.2 781.0,844.9 800.0,843.6 804.3,843.1 982.9,983.5 983.6,963.9 1045.4,918.0 1181.5,897.4 1336.5,989.5 1456.0,990.4 1452.5,945.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0032__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[690.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.03325351030931,33.03279523639697]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.02936631867388,33.032575161754544]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1030.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.02965719808218,33.028912776509394]}},{"type":"Feature","properties":{"resourceCoords":[690.8,1030.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.0335443897176,33.02913285115182]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0034__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p34 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6200.8"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0034__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"195.2,509.7 200.8,509.6 187.9,776.0 325.5,773.0 330.2,817.2 378.7,823.6 376.5,1067.5 265.6,1099.5 264.8,1240.0 38.4,1267.0 39.9,1510.9 892.0,1500.0 1019.2,1534.2 1123.4,1532.0 1128.2,1511.0 1185.8,1493.7 1230.7,1500.1 1234.9,1525.9 1315.5,1527.8 1194.8,971.8 1204.3,972.5 1224.0,66.1 1194.5,66.0 1194.4,99.7 933.2,217.9 933.4,108.2 195.2,509.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0034__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.05092497727648,33.02108532928895]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.04395137790678,33.020958985589786]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1550.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.04409515761378,33.015300403126766]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1550.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-85.05106875698348,33.01542674682593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"54.7,983.6 55.3,791.7 57.7,78.4 722.5,69.0 1420.3,48.9 1435.8,1021.9 1433.9,1360.9 1568.3,1797.9 1612.0,1797.8 1612.0,1890.0 1595.0,1892.0 1595.0,1912.0 222.1,1912.0 54.4,1065.8 54.7,983.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[71.0,805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03509128454107,33.03738823922965]}},{"type":"Feature","properties":{"resourceCoords":[1424.0,805.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03210141937247,33.03732778322115]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"299.8,1410.2 299.1,1068.8 275.9,89.3 686.1,71.3 1398.4,51.8 1400.7,318.6 1399.8,799.2 1390.2,1790.7 1415.0,1840.3 1313.5,1841.0 1311.2,1912.0 518.9,1912.0 485.4,1848.7 438.5,1849.2 299.8,1410.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[694.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03127347900289,33.03550230710493]}},{"type":"Feature","properties":{"resourceCoords":[280.0,82.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.03205992525443,33.03874175074463]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.5,1826.7 118.4,1827.7 95.3,1778.1 131.7,800.0 133.2,747.2 145.6,325.9 150.6,62.5 298.0,59.0 1470.5,108.0 1460.9,210.8 1512.2,208.5 1454.7,633.5 1367.5,1124.7 1363.9,1176.7 1359.3,1299.2 1356.6,1370.4 1344.2,1830.8 1309.8,1830.0 1263.7,1829.1 1180.3,1912.0 13.0,1912.0 18.2,1825.5 73.5,1826.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1382.0,1124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02687527588283,33.0367431615274]}},{"type":"Feature","properties":{"resourceCoords":[1466.0,641.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.02668390096512,33.03764302078383]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"La Grange, Georgia | 1921 | sanborn01459_007 p9","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:57:54Z","modified":"2026-10-19T04:57:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1040.2 1.0,1664.4 85.2,1756.9 84.1,1802.6 98.6,1807.5 623.1,1851.5 625.0,1825.5 1255.5,1855.7 1255.1,1876.6 1412.4,1892.7 1517.5,1837.8 1532.1,1506.7 1516.6,1506.7 1519.5,1035.7 1518.5,1035.7 1495.8,624.6 1509.0,624.7 1585.7,549.7 1573.3,549.9 1574.0,68.5 1612.0,53.3 1612.0,41.3 1509.0,79.7 1288.0,80.5 1047.5,82.4 628.9,83.5 629.0,86.0 160.7,117.7 155.5,169.8 181.6,168.8 151.2,384.5 105.5,633.7 103.5,660.1 99.3,758.5 91.8,992.2 50.9,991.2 1.0,1040.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd392m:g3924m:g3924lm:g3924lm_g014591921:01459_1921-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[404.0,381.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.025602,33.037671]}},{"type":"Feature","properties":{"resourceCoords":[1293.0,1505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-85.021703,33.033549]}}]}}]}