{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn00014_008.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bessemer, Alabama | 1924 | 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":"43"},{"label":"placed","value":"30"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 19, georef 10, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p10 (tier 1, 33.39878,-86.95502 +/-528m); p14 (tier 2, 33.40482,-86.95095 +/-227m); p2 (tier 1, 33.39238,-86.96091 +/-262m); p22__1 (tier 1, 33.38692,-86.95481 +/-352m); p28__2 (tier 2, 33.41152,-86.92850 +/-107m); p30__2 (tier 1, 33.40387,-86.97237 +/-358m); p31 (tier 1, 33.41327,-86.97351 +/-527m); p32__1 (tier 1, 33.41560,-86.97506 +/-524m); p32__2 (tier 1, 33.41565,-86.97662 +/-269m); p33 (tier 1, 33.41403,-86.95664 +/-527m); p37__2 (tier 2, 33.43553,-86.94477 +/-100m); p5 (tier 1, 33.40804,-86.96313 +/-264m); p6 (tier 1, 33.40839,-86.96370 +/-264m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0011","type":"ImageService3","width":1724,"height":2042},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"334.6,158.4 638.0,77.8 942.0,77.3 1176.9,159.6 1336.5,78.2 1581.0,82.3 1598.3,186.9 1636.6,236.4 1662.7,270.1 1581.1,269.8 1577.5,815.8 1567.5,815.7 1584.1,1101.6 1569.0,1101.7 1569.6,1385.5 1578.3,1670.6 1587.6,1670.6 1557.6,1957.7 1583.2,1957.2 1582.6,2008.0 436.0,2008.0 116.2,2004.8 117.8,767.3 120.5,708.6 120.8,76.7 265.1,76.4 334.6,158.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1213.0,1949.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.94944025086114,33.39784051575917]}},{"type":"Feature","properties":{"resourceCoords":[1213.0,800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95151409826373,33.39901582613995]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p12","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.35"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0012","type":"ImageService3","width":1730,"height":2042},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"290.2,132.5 602.9,48.4 1027.0,51.8 1404.7,138.5 1562.5,92.2 1562.8,287.7 1557.3,555.7 1561.9,824.0 1561.3,1099.5 1557.2,1648.3 1556.1,1940.7 838.8,1950.9 838.6,1994.0 699.8,1992.9 133.6,1999.2 137.9,1807.5 27.3,1807.7 27.4,1733.9 138.6,1733.7 139.4,1652.2 114.8,1652.8 143.1,1377.0 134.1,1377.1 125.2,1103.4 124.0,830.9 138.5,830.8 122.0,556.3 131.6,556.4 133.9,32.1 209.4,32.2 212.2,32.2 290.2,132.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[840.0,1373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9485991,33.3997863]}},{"type":"Feature","properties":{"resourceCoords":[840.0,289.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9506339,33.4009449]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p13","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.25"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0013","type":"ImageService3","width":1736,"height":2036},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"206.9,72.3 1528.4,67.5 1630.3,204.5 1638.8,671.9 1695.8,755.6 1514.6,1068.0 1517.1,1997.3 823.8,1996.2 112.5,1998.6 114.2,1653.5 118.8,1104.7 119.6,829.2 115.3,561.0 121.0,293.0 120.8,97.5 206.9,72.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[116.0,1374.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9476868,33.4009172]}},{"type":"Feature","properties":{"resourceCoords":[121.0,293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.949711,33.402079]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.15"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0015","type":"ImageService3","width":1735,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1594.3,993.8 1625.4,994.2 1602.2,1909.0 184.3,1908.6 96.0,1802.0 96.1,228.0 1391.9,125.7 1535.5,31.2 1606.6,30.6 1594.3,993.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95495879654952,33.40653631545883]}},{"type":"Feature","properties":{"resourceCoords":[1735.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95395075538393,33.40782408894471]}},{"type":"Feature","properties":{"resourceCoords":[1735.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95214435196367,33.406824744274545]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95315239312926,33.40553697078867]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.09"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0016","type":"ImageService3","width":1724,"height":2036},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"153.3,192.2 562.8,60.4 1362.0,67.5 1362.2,73.5 1592.3,71.0 1592.0,453.4 1594.0,1923.5 1594.1,2001.6 1502.2,2001.2 1485.8,1982.0 248.3,1935.9 160.4,1995.5 112.7,1995.3 112.4,1934.8 112.0,1541.6 116.4,1203.6 106.2,800.8 94.0,426.4 93.7,135.2 153.3,192.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96017035266006,33.40777065661533]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95810037301683,33.41033503310141]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,2036.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95449788829785,33.40827996254259]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2036.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95656786794108,33.40571558605651]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0017","type":"ImageService3","width":1735,"height":2034},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.2,59.6 1552.4,89.0 1593.1,89.2 1596.1,307.0 1592.5,486.8 1592.6,848.2 1591.5,1044.6 1591.2,1224.1 1590.1,1885.4 480.2,1886.1 480.1,1944.1 87.3,1950.6 79.0,1886.4 83.1,1886.3 47.4,1595.9 40.6,1595.9 40.5,1564.0 82.5,1535.5 60.5,1408.5 76.8,298.1 91.4,150.8 145.8,109.4 942.2,54.7 1508.1,92.2 1537.6,70.4 1552.2,59.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1587.0,1223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95958854419608,33.401178261529004]}},{"type":"Feature","properties":{"resourceCoords":[1587.0,1887.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95724588461809,33.39985175993075]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p18","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.31"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0018","type":"ImageService3","width":1741,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1633.5,103.2 1640.3,103.2 1672.0,395.3 1668.0,395.3 1675.3,459.8 1678.3,459.8 1657.6,692.9 1662.6,693.0 1660.4,989.1 1658.6,989.1 1654.2,1293.0 1648.0,1292.9 1663.8,1771.0 1677.1,1771.3 1636.8,2009.3 1614.1,2009.4 1612.7,2009.4 1599.0,1988.5 1362.7,1975.3 1042.5,1890.0 681.3,1936.2 622.9,1974.7 568.8,1923.0 572.8,1721.8 159.6,1519.2 45.0,1516.8 45.0,1510.2 44.7,1489.7 90.2,1459.8 57.4,807.5 86.7,159.8 126.8,151.6 121.8,123.0 136.3,134.2 149.2,123.2 179.6,148.8 487.1,83.2 1281.7,66.0 1571.6,112.2 1634.0,71.1 1633.5,103.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0018/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9661519,33.3912398]}},{"type":"Feature","properties":{"resourceCoords":[1741.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9620888,33.396398]}},{"type":"Feature","properties":{"resourceCoords":[1741.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9548284,33.3924114]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9588915,33.3872532]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0019","type":"ImageService3","width":1735,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.7,689.5 75.5,689.5 70.5,392.2 65.5,392.2 80.5,157.8 472.4,150.0 471.9,91.6 1587.5,87.1 1587.7,146.7 1638.1,146.8 1621.2,158.4 1613.1,414.9 1656.3,585.0 1635.0,929.7 1669.0,969.3 1594.8,969.7 1597.8,1295.6 1596.7,1325.8 1602.1,1983.2 1706.8,1982.9 1707.0,2009.0 851.2,2012.1 809.2,1962.7 416.4,1982.0 180.2,1893.5 102.1,1900.8 98.9,1782.2 52.5,1714.6 76.6,1714.1 111.1,1474.5 97.8,1474.4 70.4,994.7 76.7,994.7 73.7,689.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0019/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96134495934686,33.3953983357341]}},{"type":"Feature","properties":{"resourceCoords":[1735.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95719398486209,33.4004703799297]}},{"type":"Feature","properties":{"resourceCoords":[1735.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95008004713527,33.396354759310945]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2046.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95423102162005,33.391282715115345]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0020","type":"ImageService3","width":1724,"height":2042},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1566.2,101.5 1588.0,320.4 1636.8,433.3 1595.0,452.6 1578.2,655.5 1575.2,656.9 1551.3,870.4 1541.2,875.5 1555.5,908.4 1436.2,1293.0 1442.3,1307.1 1467.8,1295.2 1506.5,1450.4 1512.8,1475.5 1598.2,1817.4 1511.1,1794.2 1433.1,1907.0 1369.5,1891.6 1313.0,1885.2 1311.8,1898.0 1354.8,1993.3 1327.9,2004.9 1233.0,2004.6 1216.5,2004.6 1211.2,1992.9 476.1,1986.3 92.4,1874.7 76.9,1436.2 122.0,1249.1 116.6,1015.9 80.3,925.0 82.0,217.6 136.3,99.2 160.9,96.8 171.7,130.6 407.5,64.0 813.4,110.2 1291.9,59.7 1516.3,92.5 1572.5,67.5 1566.2,101.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[821.0,1207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95906612505624,33.38086080965684]}},{"type":"Feature","properties":{"resourceCoords":[641.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.96344364821672,33.38180977742093]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0021","type":"ImageService3","width":1724,"height":2036},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.1,343.4 79.6,124.7 358.3,80.5 1027.5,53.8 1051.6,37.2 1052.5,64.3 1167.0,64.2 1584.0,258.0 1584.3,459.1 1639.4,509.6 1618.7,523.9 1604.1,603.1 1637.4,926.4 1597.8,1526.0 1629.4,1947.3 1586.7,1984.3 1586.7,1947.3 1230.4,1868.0 1224.9,1883.8 1129.9,1886.9 1124.7,1884.8 983.4,1886.7 978.2,1869.4 716.2,1912.4 672.8,1941.9 672.2,1923.2 408.4,1942.0 405.8,1998.0 374.7,1998.0 349.5,1998.0 220.3,1715.2 209.8,1692.3 145.2,1550.8 123.1,1566.7 114.7,1554.4 160.4,1165.7 140.9,1136.8 149.7,1130.1 134.6,921.8 137.3,920.0 117.3,723.1 153.8,697.3 87.1,598.0 27.4,392.7 27.4,364.2 27.4,359.1 50.1,343.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.0,1151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9564441377473,33.38673561486674]}},{"type":"Feature","properties":{"resourceCoords":[163.0,1558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95757840543409,33.3828122066824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0022__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p22 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.44"},{"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":"6980.0"},{"label":"split_canvas_h","value":"6414.0"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0022__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0022","type":"ImageService3","width":1745,"height":2053},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"434.0,311.7 375.5,311.1 388.8,341.1 298.1,333.2 240.1,459.1 174.2,454.8 116.8,458.2 117.8,471.1 177.2,558.5 66.6,631.2 82.8,655.3 87.5,1505.0 240.2,1518.2 252.0,1534.2 234.6,1553.8 546.0,1564.6 658.5,1568.2 636.8,1550.0 664.1,1541.1 760.8,1571.4 944.4,1577.5 1461.8,1594.3 1441.4,1570.8 1506.0,1546.4 1637.5,1543.7 1624.0,1467.0 1656.8,1459.2 1623.5,1367.2 1670.5,1330.8 1644.2,1320.0 1668.5,1108.2 1620.4,888.0 1669.9,678.4 1638.0,390.2 1652.0,318.9 1661.8,310.5 1662.1,272.1 1292.6,185.8 1286.8,202.0 1188.0,204.2 1182.6,201.9 1035.7,202.3 1030.5,184.3 757.6,226.2 712.2,256.3 711.8,236.8 437.4,253.5 434.0,311.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0022__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[234.0,931.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95380838530401,33.38088978638638]}},{"type":"Feature","properties":{"resourceCoords":[1277.0,496.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95290386767857,33.38467296714125]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p23","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"53"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0023","type":"ImageService3","width":1730,"height":2048},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1607.7,102.3 1608.5,419.0 1604.8,658.8 1603.1,1025.8 1601.7,1582.2 1602.4,1763.0 1600.6,1951.8 1692.2,1951.1 1692.2,1957.5 1573.6,1974.4 1380.6,1940.5 1191.5,1986.5 886.2,1996.8 462.8,1981.9 391.8,1938.4 162.1,1924.8 86.8,1861.3 62.8,1239.2 92.2,135.3 127.8,120.2 165.1,53.5 145.5,30.2 1609.3,33.8 1607.7,102.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[859.0,1212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9462169,33.3935919]}},{"type":"Feature","properties":{"resourceCoords":[859.0,1398.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9455625,33.39322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p24","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"46"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0024","type":"ImageService3","width":1736,"height":2048},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"91.7,1765.7 92.5,1586.1 98.5,1033.2 103.2,668.6 108.8,430.4 110.7,115.7 411.1,115.2 484.7,116.4 484.9,93.5 865.5,91.7 865.1,119.6 1242.5,121.5 1610.2,125.2 1603.3,1385.8 1688.8,1386.6 1640.5,1418.9 1651.7,1965.1 1621.3,1994.4 1052.2,1971.1 439.1,1990.8 427.5,1966.7 273.7,1947.0 179.3,1959.7 179.3,1953.3 88.3,1953.3 91.7,1765.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[861.0,852.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.94392,33.398777]}},{"type":"Feature","properties":{"resourceCoords":[107.0,483.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.947029,33.397269]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p25","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"47"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0025","type":"ImageService3","width":1735,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.0,225.4 218.9,57.8 241.9,91.8 631.9,67.9 715.8,89.6 950.9,55.1 1585.3,119.7 1616.3,158.7 1634.0,409.8 1675.8,471.7 1672.3,509.0 1644.6,500.9 1587.8,897.8 1523.7,898.2 1589.5,1026.1 1604.1,1048.7 1594.5,1277.0 1589.5,1452.2 1597.8,1452.3 1595.9,1659.6 1606.4,1659.5 1546.0,2007.5 1505.7,2007.3 1500.7,1999.9 241.1,1980.0 207.6,2002.6 121.0,2002.3 121.0,724.9 121.0,225.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[121.0,910.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9440763,33.402083]}},{"type":"Feature","properties":{"resourceCoords":[121.0,1652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9414784,33.4006155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p26","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0026","type":"ImageService3","width":1724,"height":2034},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.0,1241.5 114.6,1241.6 116.2,1035.3 107.9,1035.1 112.6,860.6 121.8,633.4 107.2,610.9 41.5,483.7 105.4,483.2 161.4,87.9 188.9,95.8 192.4,58.8 219.1,98.0 316.9,59.1 1434.8,59.2 1428.7,90.9 1600.9,107.4 1646.2,343.5 1652.7,353.8 1672.9,385.7 1622.1,386.1 1624.7,488.0 1626.8,717.1 1625.9,854.8 1618.5,1043.5 1620.1,1085.1 1617.7,1226.2 1616.6,1455.6 1617.5,1596.2 1620.2,1739.2 1621.3,1977.2 1566.7,1999.4 1500.4,1999.0 1497.4,1994.6 830.0,1960.2 603.2,1985.3 117.5,1974.6 75.9,1920.0 50.2,1624.7 29.4,1588.0 65.4,1588.1 125.0,1241.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1249.0,1965.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9327112,33.4067981]}},{"type":"Feature","properties":{"resourceCoords":[1249.0,121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.939189,33.410469]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0027","type":"ImageService3","width":1735,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"254.1,94.2 498.0,55.8 886.8,87.5 1169.3,51.0 1374.0,99.5 1482.1,101.2 1612.9,143.6 1644.6,322.2 1668.5,994.5 1641.4,1175.5 1637.7,1903.5 1577.0,1972.3 1556.5,1948.8 1272.6,1893.2 1042.7,1959.3 937.6,1927.7 771.7,1936.8 643.4,1981.2 122.0,1973.6 128.2,1941.5 86.5,1927.7 87.9,1750.0 47.4,1689.8 155.5,1646.3 155.5,1405.0 153.4,1259.9 153.2,1117.4 155.4,884.8 158.5,741.6 157.0,699.5 165.4,508.0 166.9,368.4 165.8,136.0 163.7,32.6 215.3,32.5 254.1,94.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1356.0,1133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9307605456757,33.4123480139905]}},{"type":"Feature","properties":{"resourceCoords":[162.0,888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.93440024005459,33.40936285856082]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0028__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p28 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"496.0"},{"label":"split_canvas_w","value":"5784.4"},{"label":"split_canvas_h","value":"7688.0"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0028__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0028","type":"ImageService3","width":1735,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.0,1851.0 186.6,1892.2 790.9,1957.6 939.4,1817.9 1069.2,1789.2 1193.3,1846.2 1326.1,1742.8 995.9,863.0 313.6,358.0 190.6,446.6 197.8,890.1 139.8,932.4 88.9,1354.3 99.0,1851.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0028__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,1549.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.93809871784835,33.41456357741175]}},{"type":"Feature","properties":{"resourceCoords":[219.0,1851.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.93756478451142,33.41430848981862]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p29","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"35"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0029","type":"ImageService3","width":1735,"height":2034},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"338.5,78.4 486.6,116.4 1419.3,125.5 1418.9,127.5 1693.3,162.8 1624.0,214.0 1661.3,662.1 1645.0,1932.7 1555.3,1929.2 1468.4,1882.4 1195.0,1865.6 1074.9,1891.9 933.1,1974.2 796.0,1989.0 329.4,1965.3 218.3,1930.3 129.9,1949.0 73.3,1872.4 92.2,1717.1 62.5,1571.8 93.8,451.9 117.8,426.4 94.2,378.1 149.7,188.8 131.3,127.7 269.4,107.6 338.7,60.6 338.5,78.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[854.0,1589.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.967394,33.405628]}},{"type":"Feature","properties":{"resourceCoords":[487.0,475.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.972185,33.406768]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0003","type":"ImageService3","width":1729,"height":2040},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.3,545.9 74.8,175.2 826.5,174.8 1596.8,176.7 1597.7,322.4 1554.4,557.4 1616.6,1223.6 1573.6,1869.7 123.7,1847.8 81.7,1861.8 76.3,545.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95883740523789,33.403806428380875]}},{"type":"Feature","properties":{"resourceCoords":[1729.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95676347041932,33.4063583199233]}},{"type":"Feature","properties":{"resourceCoords":[1729.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95318203999766,33.40430114536122]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95525597481623,33.40174925381879]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0030__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p30 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.28"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2556.4"},{"label":"split_canvas_w","value":"6896.0"},{"label":"split_canvas_h","value":"5579.6"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0030__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0030","type":"ImageService3","width":1724,"height":2034},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.1,1892.4 27.1,1901.4 175.7,1938.2 1109.6,1940.0 1109.2,1942.0 1384.2,1975.2 1391.5,1969.7 1592.4,1979.2 1644.3,1920.2 1589.3,1384.4 1603.6,1217.2 1630.7,1189.3 1602.1,1121.1 1632.3,1091.1 1642.8,824.6 1609.8,736.4 1530.3,721.9 1529.8,694.4 1506.9,714.8 1271.4,655.2 885.1,685.6 641.6,654.6 311.1,665.1 82.3,702.6 55.4,804.5 78.7,1005.9 44.8,1131.1 55.3,1864.2 27.1,1883.6 27.1,1892.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0030__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[543.0,1181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.975206,33.410074]}},{"type":"Feature","properties":{"resourceCoords":[543.0,1553.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.973907,33.409326]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.21"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0034","type":"ImageService3","width":1724,"height":2040},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"632.9,1962.3 503.3,1962.4 497.5,1962.5 259.7,1584.8 317.6,1585.8 132.8,1424.3 132.8,1403.6 117.7,1403.7 35.0,1340.5 35.0,1328.0 87.0,1290.7 97.8,106.3 282.1,60.2 1482.4,65.9 1614.8,105.7 1652.0,242.1 1620.8,521.6 1650.5,1965.9 1621.0,1968.9 1483.7,1966.7 1316.4,1909.0 958.2,1989.6 644.6,1980.0 633.1,1987.8 632.9,1962.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0034/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96005611108393,33.41537713181537]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95597649671154,33.420450252781514]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.94883492504142,33.416392492900066]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95291453941381,33.41131937193392]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0035","type":"ImageService3","width":1729,"height":2046},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1559.4,182.8 1542.6,279.4 1553.2,567.2 1565.8,607.7 1578.0,788.9 1579.1,788.6 1575.4,897.1 1578.1,896.5 1555.2,1106.9 1560.3,1110.0 1439.2,1411.7 1423.6,1407.3 1387.2,1540.3 1353.5,1919.5 1167.8,1965.3 941.2,1915.3 518.8,1964.7 385.5,1870.3 337.4,1778.1 360.6,1727.7 217.5,1192.7 258.1,1178.1 230.1,915.4 252.1,845.2 228.6,754.6 142.1,773.1 139.3,762.4 91.9,399.2 135.7,428.1 275.4,391.9 254.6,296.5 301.6,260.1 750.8,252.2 894.2,214.9 1048.6,126.5 1281.0,199.1 1436.0,191.0 1576.8,154.4 1559.4,182.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1036.0,1323.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9489528670226,33.43053620236494]}},{"type":"Feature","properties":{"resourceCoords":[803.0,767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.95142606713074,33.430239849661604]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0036","type":"ImageService3","width":1730,"height":2042},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.8,224.4 84.6,160.2 479.8,53.8 666.3,41.9 1076.0,99.5 1289.8,54.0 1585.8,86.3 1614.0,120.5 1658.8,445.5 1636.8,519.4 1663.5,908.0 1609.5,1448.3 1682.8,1610.5 1596.3,1709.8 1564.4,1708.7 1425.7,1716.2 1434.8,1762.8 1580.5,1753.7 1651.0,1763.3 1438.4,1840.0 1095.5,1942.2 1110.6,1958.8 1057.3,1978.0 965.7,1957.0 387.4,1941.5 228.3,1966.6 148.8,2001.3 147.6,2001.3 124.5,2001.3 94.2,1633.7 107.5,1497.1 123.5,1498.7 191.3,1182.2 185.8,1180.0 172.7,969.6 170.2,970.7 155.4,863.6 154.4,864.0 111.8,688.3 92.5,650.7 33.5,370.1 33.5,342.7 33.6,272.4 45.9,241.6 83.8,224.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,1836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9469295649056,33.43126750114609]}},{"type":"Feature","properties":{"resourceCoords":[1116.0,1172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.94771303231387,33.43541739698513]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0037__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p37 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.23"},{"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":"4168.0"},{"label":"split_canvas_h","value":"8220.0"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0037__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0037","type":"ImageService3","width":1746,"height":2055},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.5,1508.8 185.6,1374.2 228.2,1315.8 194.2,1542.8 120.2,1898.8 142.4,1893.3 133.9,1950.3 139.6,1943.8 596.7,1912.3 640.2,1856.0 634.0,1491.7 606.9,1489.8 585.8,1489.7 521.8,1489.3 478.2,1489.0 476.5,1480.7 600.2,955.3 995.7,389.5 986.9,289.9 937.9,254.9 592.5,215.0 297.4,135.1 102.1,157.0 82.1,499.8 119.3,1214.5 106.9,1213.6 153.9,1338.9 137.6,1366.9 77.3,1494.5 123.5,1508.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0037__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[279.0,1196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9443794,33.4366843]}},{"type":"Feature","properties":{"resourceCoords":[-152.0,1942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9459279,33.4340379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p38 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.50"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5617.2"},{"label":"split_canvas_w","value":"2902.0"},{"label":"split_canvas_h","value":"2586.8"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038","type":"ImageService3","width":1729,"height":2051},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"426.2,1515.5 360.0,1512.5 296.7,1458.4 305.4,1429.8 261.9,1426.5 176.2,1505.8 93.1,1533.2 97.3,1909.5 203.3,1944.7 383.1,1917.5 415.7,1960.0 417.8,1895.8 612.1,1898.6 617.0,1524.0 468.6,1522.0 468.6,1517.5 426.2,1515.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1404.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.9584629988232,33.41233279476991]}},{"type":"Feature","properties":{"resourceCoords":[725.5,1404.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95591352941607,33.41092022491937]}},{"type":"Feature","properties":{"resourceCoords":[725.5,2051.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95741103238674,33.40901025131742]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2051.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95996050179387,33.410422821167955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p38 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.86"},{"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":"6916.0"},{"label":"split_canvas_h","value":"8204.0"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038","type":"ImageService3","width":1729,"height":2051},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"84.8,190.6 84.7,928.2 84.8,967.4 38.5,967.5 74.9,1009.9 75.4,1165.2 67.0,1170.9 84.7,1170.4 84.7,1409.3 91.6,1409.3 92.4,1409.3 92.5,1405.3 167.5,1354.2 221.1,1358.9 242.6,1403.8 391.3,1380.3 722.1,1402.2 723.4,1404.3 725.5,1404.3 725.5,1407.8 753.1,1454.3 763.5,1758.5 813.7,1953.2 1618.5,1945.1 1646.4,1898.7 1656.3,1631.0 1651.0,783.1 1692.7,754.7 1692.5,729.4 1563.7,730.4 1557.9,730.5 1321.4,357.6 1378.9,358.2 1195.2,199.4 1195.2,178.8 1180.1,179.1 1089.5,110.6 1036.0,149.1 496.2,109.5 460.0,56.3 460.4,41.9 458.4,41.9 456.0,41.9 455.8,188.5 84.8,190.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0038__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[825.0,739.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.953741,33.410761]}},{"type":"Feature","properties":{"resourceCoords":[825.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.9557,33.411875]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0004","type":"ImageService3","width":1724,"height":2040},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.4,601.1 99.3,102.2 103.9,67.8 220.9,65.2 1524.8,83.8 1593.5,149.7 1593.0,440.6 1604.2,814.5 1613.3,1216.8 1608.0,1554.4 1607.3,1947.1 842.5,1940.7 95.9,1936.8 97.8,813.7 98.4,601.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96199237701768,33.40554660782066]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95992810757018,33.40811897593264]}},{"type":"Feature","properties":{"resourceCoords":[1724.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95630739290654,33.406065493399794]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95837166235404,33.40349312528782]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.40"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0007","type":"ImageService3","width":1714,"height":2034},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1596.3,1215.6 1591.7,1250.2 1589.8,1751.9 1589.4,1830.9 850.0,1779.3 850.4,1753.9 109.9,1903.0 116.0,1615.5 110.6,1180.2 29.4,1179.3 29.1,1120.5 87.1,1077.9 52.6,634.7 112.5,494.0 122.3,103.3 1500.6,73.4 1610.1,155.3 1629.8,1211.8 1682.6,1212.7 1682.6,1213.8 1596.3,1215.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96579121691573,33.404475098066996]}},{"type":"Feature","properties":{"resourceCoords":[1714.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96375618257696,33.40702156199209]}},{"type":"Feature","properties":{"resourceCoords":[1714.0,2034.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96016163227515,33.40499133327532]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2034.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96219666661392,33.40244486935023]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.43"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0008","type":"ImageService3","width":1718,"height":2028},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"114.3,1161.2 110.8,441.0 112.0,369.5 849.5,216.8 849.3,242.2 1586.9,289.5 1587.0,423.9 1589.2,1550.1 1589.8,1843.8 852.5,1675.5 852.3,1708.1 114.5,1798.7 113.8,1552.3 114.3,1161.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96308461851447,33.40294569880988]}},{"type":"Feature","properties":{"resourceCoords":[1718.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96102225477254,33.40549565892381]}},{"type":"Feature","properties":{"resourceCoords":[1718.0,2028.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95744181607085,33.40344896928207]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2028.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95950417981278,33.400899009168135]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bessemer, Alabama | 1924 | sanborn00014_008 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:07:27Z","modified":"2026-10-19T00:07:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0009","type":"ImageService3","width":1729,"height":2040},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.0,454.6 849.5,359.8 849.6,327.1 1591.0,492.4 1591.5,568.2 1600.6,1884.5 1595.2,1921.5 330.1,1933.2 220.7,2008.4 208.3,2008.4 120.4,2008.2 120.2,1889.8 109.8,566.4 109.0,454.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd397m:g3974m:g3974bm:g3974bm_g000141924:00014_1924-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.96069907515898,33.4016000753719]}},{"type":"Feature","properties":{"resourceCoords":[1729.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95861723825604,33.404146220926975]}},{"type":"Feature","properties":{"resourceCoords":[1729.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95504395356292,33.402081160999764]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2040.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.95712579046587,33.39953501544469]}}]}}]}