{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02345_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Gary, Indiana | 1946 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"92"},{"label":"placed","value":"87"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 54, georef-snap 31, georef-street 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 10 panels"},{"label":"unplaced pages","value":"p327__1 (tier 1, 41.59764,-87.39175 +/-375m); p327__4 (tier 1, 41.59484,-87.39247 +/-225m); p402 (tier 1, 41.59674,-87.31255 +/-493m); p406 (tier 1, 41.60041,-87.26634 +/-255m); p407__1 (tier 1, 41.60472,-87.26210 +/-153m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0201/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p201","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0201/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0201","type":"ImageService3","width":1595,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"228.3,1756.9 71.5,1677.5 40.9,1004.0 84.8,613.4 85.5,93.4 199.9,90.7 347.9,33.0 945.3,27.0 1391.0,82.5 1471.9,105.3 1483.6,153.3 1504.9,799.7 1507.5,799.8 1476.2,1296.0 1459.7,1295.7 1461.8,1791.0 963.8,1781.0 963.8,1803.7 963.7,1808.9 718.0,1825.3 718.0,1822.3 470.2,1806.4 470.1,1771.0 228.3,1764.1 228.3,1756.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0201/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[965.0,793.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3329641,41.5584916]}},{"type":"Feature","properties":{"resourceCoords":[718.0,1776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3341302,41.5548884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0202/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p202","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.60"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0202/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0202","type":"ImageService3","width":1600,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"532.7,1807.8 283.4,1769.0 283.4,1745.5 31.8,1742.6 25.3,1237.2 42.1,1237.4 69.6,730.8 67.0,730.8 39.5,71.3 636.7,63.8 794.7,33.6 1144.6,116.3 1494.5,90.0 1543.5,421.1 1555.0,1565.2 1565.0,1565.8 1539.6,1637.7 1539.5,1760.7 1301.2,1757.4 1301.3,1784.7 782.1,1788.8 782.1,1789.6 532.7,1813.5 532.7,1807.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0202/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.3306452,41.5611034]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.3229808,41.5611025]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.32298229999999,41.554220199999996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.3306467,41.5542211]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0203/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p203","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0203/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0203","type":"ImageService3","width":1600,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"217.9,1729.2 215.7,1626.7 210.0,1152.4 221.1,1131.3 218.1,632.0 216.7,179.4 320.7,176.3 332.0,158.4 339.2,180.1 376.1,180.1 531.4,169.1 686.6,91.6 812.3,99.0 856.6,139.7 1045.1,195.3 1185.5,195.4 1229.9,158.4 1283.5,156.7 1283.6,166.7 1449.5,168.2 1447.8,197.5 1447.2,689.2 1454.0,1139.4 1456.6,1505.2 1456.8,1529.1 1209.9,1558.6 1209.8,1545.9 961.5,1559.0 961.5,1563.9 713.1,1615.6 713.0,1599.7 464.1,1660.0 463.7,1626.8 217.9,1730.3 217.9,1729.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0203/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[958.0,665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34133799683727,41.55311677586669]}},{"type":"Feature","properties":{"resourceCoords":[216.0,174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34495797848132,41.55490688109827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0204/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p204","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0204/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0204","type":"ImageService3","width":1600,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"330.2,1580.8 245.6,672.5 255.8,671.6 269.5,471.4 541.7,416.6 541.7,406.9 1034.0,384.0 1034.1,409.1 1523.8,353.7 1523.8,414.8 1523.9,559.5 1531.9,1600.5 330.2,1580.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0204/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[542.0,644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3413133,41.5494177]}},{"type":"Feature","properties":{"resourceCoords":[1037.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3400796,41.5476769]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0205/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p205","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0205/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0205","type":"ImageService3","width":1595,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1309.7,1585.8 1301.0,280.0 1301.0,265.7 991.2,110.8 992.0,128.6 585.3,105.2 323.2,235.0 1.0,244.7 1.0,264.5 326.1,268.4 322.6,326.1 318.4,1292.6 323.3,1701.4 810.3,1745.2 810.3,1731.2 1310.7,1727.8 1309.7,1585.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0205/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[318.0,1248.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3389537,41.5531124]}},{"type":"Feature","properties":{"resourceCoords":[1301.0,280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3365242,41.5549164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0206/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p206","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0206/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0206","type":"ImageService3","width":1595,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"301.2,239.0 789.7,286.1 789.8,272.1 1292.0,272.1 1292.0,354.4 1292.0,518.5 1292.2,1597.8 1215.9,1608.3 790.0,1642.2 301.0,1690.4 301.4,1546.5 301.9,1438.6 303.8,716.9 301.2,239.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0206/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1292.0,784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3364732,41.5512817]}},{"type":"Feature","properties":{"resourceCoords":[304.0,766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3389159,41.5512959]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0207/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p207","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0207/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0207","type":"ImageService3","width":1595,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"291.4,1718.8 292.9,1491.9 301.6,169.1 784.0,186.9 783.6,257.6 1278.0,293.6 1270.9,1143.7 1270.1,1244.7 1265.3,1799.3 774.0,1763.4 774.0,1766.5 291.2,1745.0 291.4,1718.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0207/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[781.0,1172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33530833413951,41.55309375180463]}},{"type":"Feature","properties":{"resourceCoords":[283.0,183.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33656922106161,41.55489045108121]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0208/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p208","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0208/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0208","type":"ImageService3","width":1596,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"281.7,199.1 767.0,214.1 767.0,211.0 1261.1,240.3 1262.7,574.4 1266.6,1316.5 1276.7,1315.0 1334.8,1638.0 1271.6,1637.1 1050.3,1634.3 976.9,1636.9 770.0,1660.0 769.9,1648.0 291.8,1563.8 290.8,1485.5 290.6,1433.7 282.8,339.1 281.7,199.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0208/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[770.0,1660.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3352812,41.5493664]}},{"type":"Feature","properties":{"resourceCoords":[1263.0,625.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3340882,41.5512576]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0209/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p209","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0209/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0209","type":"ImageService3","width":1596,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1314.0,1590.9 1312.5,1692.4 1312.5,1694.9 811.6,1723.6 811.5,1713.7 321.3,1690.8 321.4,1332.5 321.4,1291.8 320.0,249.0 812.3,201.8 1241.1,168.9 1317.9,158.6 1317.7,209.9 1318.0,342.0 1314.5,1371.0 1314.0,1590.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0209/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[811.0,1303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3376595,41.5476606]}},{"type":"Feature","properties":{"resourceCoords":[320.0,249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3388994,41.5495858]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0210/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p210","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0210/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0210","type":"ImageService3","width":1596,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.9,1755.6 1293.7,1795.2 936.6,1785.6 840.0,1783.0 542.0,1775.0 307.6,1772.5 284.1,1771.8 353.1,772.5 308.4,770.4 308.6,733.6 311.6,185.1 802.6,210.4 802.6,220.3 1304.6,194.1 1302.1,636.1 1294.7,1645.7 1293.9,1755.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0210/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[801.0,790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3376231,41.5458426]}},{"type":"Feature","properties":{"resourceCoords":[801.0,1782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3375791,41.5440229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0211/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p211","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0211/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0211","type":"ImageService3","width":1596,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"782.4,1712.0 782.5,1726.5 293.1,1685.9 292.4,1471.7 289.7,435.5 289.3,380.8 766.8,466.9 766.8,478.8 973.6,456.5 1047.1,454.2 1268.2,457.9 1273.8,1394.2 1276.4,1433.5 1240.5,1432.9 1265.2,1686.2 782.4,1712.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0211/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[283.0,1424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33644444498711,41.547634641091044]}},{"type":"Feature","properties":{"resourceCoords":[283.0,261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33646513164008,41.54975753208025]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0212/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p212","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0212/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0212","type":"ImageService3","width":1598,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"293.6,1817.8 293.5,1778.6 293.4,1723.5 293.2,1669.8 290.6,670.1 288.6,229.9 289.6,129.3 289.5,122.2 771.7,162.6 771.6,148.3 1247.3,123.3 1318.0,853.7 1259.5,852.8 1310.2,1809.0 1597.0,1833.1 1597.0,1843.2 1276.3,1838.1 784.2,1826.2 293.6,1817.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0212/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[278.0,834.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3364294781787,41.545837715323785]}},{"type":"Feature","properties":{"resourceCoords":[775.0,842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33519889191098,41.54583036301145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0213/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p213","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0213/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0213","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"823.1,1709.8 823.0,1705.7 382.9,1668.1 349.4,1170.7 388.2,1171.1 378.3,184.8 454.6,185.9 809.2,191.3 1301.0,198.7 1302.0,450.6 1311.0,1182.0 1313.5,1725.3 823.1,1709.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0213/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1311.0,1182.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3351168,41.5421898]}},{"type":"Feature","properties":{"resourceCoords":[320.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3375791,41.5440229]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0214/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p214","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0214/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0214","type":"ImageService3","width":1583,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"793.4,1724.7 298.5,1718.0 297.2,1619.5 378.8,735.6 370.6,735.5 337.4,255.2 777.7,292.1 777.8,296.2 1268.2,310.8 1269.5,508.0 1279.8,1422.5 1281.0,1733.0 793.4,1724.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0214/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[783.0,740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3362959,41.5403886]}},{"type":"Feature","properties":{"resourceCoords":[1281.0,1733.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3350557,41.5385575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0215/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p215","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0215/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0215","type":"ImageService3","width":1584,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"750.3,1692.0 356.0,1700.1 356.9,1696.1 364.5,1574.2 361.2,1494.4 340.9,1385.7 298.6,1233.9 288.8,1173.1 289.0,185.0 786.4,197.2 1276.6,210.8 1276.5,1147.8 1279.5,1247.3 1275.3,1694.9 806.9,1679.5 808.4,1468.9 755.9,1468.9 750.3,1692.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0215/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[786.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.336224,41.5367552]}},{"type":"Feature","properties":{"resourceCoords":[289.0,185.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3374816,41.5385773]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0216/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p216","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0216/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0216","type":"ImageService3","width":1580,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"286.2,1624.7 324.1,1519.9 352.6,1370.3 354.5,1216.2 343.1,1130.7 291.4,882.0 275.9,740.4 284.4,583.9 300.7,488.9 345.1,301.8 356.3,246.2 749.0,237.8 754.4,15.6 806.6,15.6 805.3,225.3 1271.9,240.1 1267.7,732.4 1258.5,1721.2 274.5,1697.3 286.2,1624.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0216/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1279.0,722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33496908898684,41.534940881118125]}},{"type":"Feature","properties":{"resourceCoords":[1279.0,1715.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33493425499105,41.53310834642669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0217/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p217","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0217/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0217","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"482.7,1766.0 285.3,1623.4 285.2,1685.2 42.3,1479.7 42.7,1384.7 74.1,1115.1 53.2,1037.5 89.7,103.8 668.2,31.8 1499.1,48.2 1526.6,268.2 1526.3,310.4 1524.2,805.4 1517.0,1299.5 1517.5,1792.8 1269.5,1787.0 1148.0,1785.2 1023.6,1780.0 777.2,1774.1 777.1,1784.0 532.1,1820.3 532.4,1767.4 482.7,1766.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0217/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[785.0,789.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35466794958305,41.55320724627251]}},{"type":"Feature","properties":{"resourceCoords":[785.0,1774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35459377339667,41.549594708017615]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0218/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p218","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0218/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0218","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.5,1105.0 127.9,613.9 129.3,121.9 160.2,136.3 430.7,136.5 779.0,64.5 1004.6,133.5 1234.7,151.3 1253.3,122.3 1267.5,155.4 1351.4,171.2 1369.1,170.9 1364.6,618.5 1361.0,1112.2 1349.7,1132.9 1349.2,1602.0 1350.0,1703.4 1350.2,1728.2 1309.2,1731.0 1102.9,1654.8 1103.2,1619.1 980.6,1613.4 859.5,1610.8 613.3,1607.5 489.8,1603.5 122.7,1595.3 121.5,1105.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0218/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[618.0,1122.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34859289678009,41.55133904193873]}},{"type":"Feature","properties":{"resourceCoords":[375.0,1610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34975752764234,41.549525859494516]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0219/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p219","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0219/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0219","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1155.3,1724.9 908.1,1717.0 538.8,1707.8 295.0,1699.4 297.0,1271.2 299.0,1026.3 302.6,368.6 303.1,275.0 547.7,239.0 547.7,229.1 793.7,235.3 917.8,240.6 1039.0,242.5 1286.5,248.5 1283.9,449.9 1285.3,522.5 1283.7,806.2 1280.4,1235.0 1296.9,1235.6 1320.5,1728.8 1278.3,1727.9 1155.3,1724.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0219/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[788.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35337258185129,41.54596656036477]}},{"type":"Feature","properties":{"resourceCoords":[1035.0,1712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35212008566194,41.54417313868378]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0220/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p220","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"35"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0220/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0220","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"408.8,1721.2 283.1,1718.4 204.9,1717.0 179.0,1221.8 162.5,1221.4 163.9,790.8 164.2,505.9 162.5,433.1 164.2,230.8 534.2,238.3 658.8,242.1 907.0,245.0 1029.0,247.3 1152.7,252.8 1152.4,288.9 1360.5,365.3 1401.8,362.4 1402.5,752.0 1410.1,752.1 1410.2,930.5 1390.1,1660.0 1171.2,1739.5 536.8,1724.3 408.8,1721.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0220/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[659.0,1233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3485239,41.54592]}},{"type":"Feature","properties":{"resourceCoords":[907.0,245.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3473685,41.5495477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0221/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p221","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0221/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0221","type":"ImageService3","width":1595,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"195.2,937.5 195.5,759.4 187.9,759.2 188.1,369.7 187.9,345.8 434.2,245.9 434.2,279.0 683.0,222.3 683.0,238.2 794.1,216.6 786.5,317.1 781.4,317.6 820.5,774.4 1424.5,788.7 1424.4,809.1 1423.8,1263.8 1423.8,1282.2 1446.2,1283.2 1413.6,1783.8 1301.2,1780.9 430.8,1758.2 364.9,1756.4 173.5,1666.5 195.2,937.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0221/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1177.0,1275.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3400393,41.5458756]}},{"type":"Feature","properties":{"resourceCoords":[434.0,347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3437396,41.5492356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0222/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p222","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0222/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0222","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"110.7,1063.2 110.8,699.9 112.1,203.7 978.0,225.8 1101.5,228.9 1218.3,229.6 1366.8,233.0 1376.6,233.2 1377.9,728.2 1358.5,727.9 1387.8,1218.8 1391.9,1218.9 1346.8,1662.1 1347.1,1711.6 1099.2,1706.4 109.6,1684.6 110.7,1063.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0222/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3411937,41.5422242]}},{"type":"Feature","properties":{"resourceCoords":[855.0,1701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3399027,41.5385917]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0223/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p223","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0223/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0223","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"912.0,1753.5 911.9,1716.0 542.5,1711.6 418.8,1709.3 172.5,1706.8 112.3,1706.0 38.4,1590.7 47.8,1590.9 76.7,803.0 45.3,615.7 79.5,473.1 77.7,317.2 172.0,217.0 415.6,223.6 784.6,229.8 1031.5,235.9 1154.5,237.9 1274.3,239.7 1399.4,242.1 1434.5,242.8 1412.5,1231.9 1424.0,1232.2 1479.2,1725.0 912.0,1753.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0223/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[415.0,1221.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35451746607959,41.54048829779504]}},{"type":"Feature","properties":{"resourceCoords":[663.0,230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35334051599942,41.544142855355325]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0224/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p224","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0224/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0224","type":"ImageService3","width":1534,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"193.7,1193.3 182.2,1193.0 204.3,211.2 295.9,213.2 922.5,226.4 1138.4,147.2 1138.4,146.9 1328.0,234.7 1393.1,236.1 1394.1,729.0 1395.8,1089.7 1397.6,1707.0 1029.3,1700.6 905.6,1696.8 905.5,1649.7 248.3,1682.5 193.7,1193.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0224/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[905.0,1207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3460322,41.540452]}},{"type":"Feature","properties":{"resourceCoords":[905.0,226.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3460753,41.5440888]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0225/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p225","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0225/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0225","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1385.5,163.8 1446.0,164.6 1445.8,659.1 1473.3,659.6 1455.9,1155.8 1446.6,1155.7 1448.4,1650.5 1458.8,1650.7 1473.8,1894.2 53.5,1876.1 28.2,1824.2 27.4,1123.7 58.6,932.2 39.1,651.8 78.1,423.6 57.4,275.9 77.5,88.0 169.8,85.2 210.7,48.7 494.8,29.2 1311.2,47.8 1385.5,163.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0225/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[703.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3592763,41.5351212]}},{"type":"Feature","properties":{"resourceCoords":[456.0,638.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3605061,41.5369274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0226/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p226","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0226/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0226","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"150.9,1630.1 140.4,1629.9 139.1,1138.1 148.3,1138.2 165.9,645.1 138.6,644.5 139.2,153.1 385.4,155.9 509.2,158.4 878.5,163.2 878.5,200.7 1373.3,176.6 1373.2,742.6 1373.2,743.3 1375.3,1655.7 1339.7,1654.9 1484.5,1850.9 1169.5,1837.1 1117.9,1869.6 886.8,1881.9 165.6,1872.2 150.9,1630.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0226/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[631.0,654.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3532459,41.5368673]}},{"type":"Feature","properties":{"resourceCoords":[631.0,1640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3531971,41.533238]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0227/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p227","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0227/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0227","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"856.5,1853.2 351.5,1810.7 333.0,1840.2 321.8,1839.8 174.9,1643.5 210.8,1644.1 202.9,725.5 199.6,156.2 938.0,115.6 938.4,163.3 1063.8,166.6 1437.0,171.1 1440.9,699.9 1440.9,700.0 1504.2,1662.2 1445.8,1661.4 948.1,1654.4 948.7,1795.9 856.0,1867.8 856.5,1853.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0227/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1439.0,418.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3435556,41.5377114]}},{"type":"Feature","properties":{"resourceCoords":[203.0,1644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3495743,41.5332079]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0228/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p228","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0228/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0228","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1097.5,1679.3 847.6,1674.1 283.9,1662.3 161.6,1659.7 104.9,699.0 104.6,171.5 1098.3,190.5 1347.2,195.0 1349.3,690.2 1354.3,720.7 1375.9,796.7 1386.3,851.1 1388.2,891.1 1384.6,952.2 1378.7,982.2 1356.6,1076.4 1348.6,1124.2 1344.5,1203.0 1352.7,1274.3 1379.1,1399.4 1385.0,1442.3 1384.3,1519.9 1370.2,1595.2 1351.3,1648.1 1345.5,1684.6 1097.5,1679.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0228/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[107.0,1156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34350681335594,41.535004499330775]}},{"type":"Feature","properties":{"resourceCoords":[1427.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33706509962333,41.536801925563076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0229/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p229","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0229/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0229","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"154.2,269.3 154.7,128.6 649.6,139.5 829.7,143.5 1391.5,155.9 1507.7,158.6 1519.7,650.3 1533.9,650.6 1507.0,1146.3 1496.9,1146.0 1501.2,1636.9 1508.5,1637.1 1518.5,1771.3 1384.9,1843.1 1335.0,1889.3 1334.3,1880.5 1143.8,1867.2 1096.5,1833.7 469.1,1870.2 344.9,1828.4 143.1,1844.3 92.2,1803.4 30.6,1117.1 61.5,340.1 154.2,269.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0229/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[897.0,637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3422538,41.5313421]}},{"type":"Feature","properties":{"resourceCoords":[897.0,145.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3422825,41.5331524]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0230/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p230","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0230/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0230","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"701.0,1728.4 701.0,1752.8 700.8,1810.6 468.4,1805.6 468.4,1816.7 219.6,1797.0 219.6,1709.1 105.2,1771.1 94.6,1636.4 87.2,1636.3 80.8,1143.6 91.0,1143.8 115.8,646.1 101.5,645.9 87.4,152.3 220.8,154.7 468.9,159.2 964.5,167.9 1458.8,176.7 1461.0,669.0 1462.3,1165.5 1461.5,1234.8 1480.2,1799.8 1458.7,1799.3 1458.6,1864.8 1347.6,1905.3 1337.8,1905.3 1327.3,1905.4 1211.9,1831.5 1211.9,1817.1 965.2,1820.9 965.2,1814.8 732.4,1804.8 732.4,1728.5 701.0,1728.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0230/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[220.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3385939,41.5294903]}},{"type":"Feature","properties":{"resourceCoords":[1213.0,665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3337491,41.5312811]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0231/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p231","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"30"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0231/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0231","type":"ImageService3","width":1590,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.6,1216.0 186.1,1146.5 181.9,648.0 176.9,153.8 920.0,162.8 1174.8,165.8 1202.5,166.2 1369.0,168.2 1406.1,925.8 1425.8,925.7 1428.1,1214.6 1428.2,1233.3 1489.0,1255.8 1495.0,1890.4 1429.1,1869.2 1429.1,1862.2 1179.7,1860.4 1179.8,1869.2 931.8,1855.6 931.8,1851.7 682.2,1845.3 682.2,1842.8 432.4,1828.7 432.4,1829.8 209.7,1837.6 185.6,1216.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0231/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[681.0,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3300906,41.5276251]}},{"type":"Feature","properties":{"resourceCoords":[681.0,1155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3300952,41.5294254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p232 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.77"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3859.6"},{"label":"split_canvas_w","value":"6324.0"},{"label":"split_canvas_h","value":"3820.4"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"66.0,1324.1 57.3,1324.1 93.2,1783.3 306.8,1781.8 727.8,1830.3 1436.4,1843.7 1465.5,1780.8 1463.3,1486.0 1499.5,1393.6 1493.4,1061.9 1427.4,1041.2 1427.3,1034.3 1178.2,1034.8 1178.4,1043.5 930.7,1032.2 930.7,1028.3 681.4,1024.3 681.4,1021.8 431.8,1010.0 431.8,1011.1 209.5,1020.9 206.9,966.5 206.2,966.5 185.2,966.4 186.1,1031.9 71.4,1075.7 71.8,1324.1 66.0,1324.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[686.0,1325.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3300709,41.5258016]}},{"type":"Feature","properties":{"resourceCoords":[1183.0,1325.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3276433,41.5257885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p232 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.95"},{"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":"6324.0"},{"label":"split_canvas_h","value":"3909.2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.7,185.5 93.2,923.4 1141.5,973.9 1152.2,973.9 1383.0,956.4 1475.6,904.9 1479.7,904.9 1448.3,444.1 1457.0,444.1 1462.7,444.2 1464.8,203.9 1464.8,195.1 1469.0,193.5 1448.6,193.7 1332.3,120.0 1332.2,105.6 1084.6,110.6 1084.5,104.5 850.7,95.5 850.3,18.9 818.8,18.9 818.9,43.4 819.0,101.5 585.6,97.7 585.6,108.8 335.6,90.2 335.2,1.9 86.6,138.4 36.7,185.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0232__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[337.0,430.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3385607,41.5258634]}},{"type":"Feature","properties":{"resourceCoords":[1334.0,443.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3336989,41.5258257]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0233/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p233","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0233/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0233","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.2,697.7 149.5,647.9 147.2,178.4 394.9,184.2 640.6,189.2 870.3,194.9 938.8,193.9 1110.5,196.2 1258.3,202.3 1382.6,203.9 1503.9,206.7 1530.3,207.3 1535.5,704.7 1546.6,705.0 1543.8,1198.5 1536.5,1198.3 1536.9,1695.3 1380.0,1692.2 640.4,1677.2 146.6,1667.1 149.2,1169.6 151.2,697.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0233/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[647.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33255596913763,41.53488729797838]}},{"type":"Feature","properties":{"resourceCoords":[1386.0,192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.32898385185987,41.53855400199825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p234 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.95"},{"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":"6324.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"186.5,1704.8 402.6,1709.6 402.3,1846.2 449.2,1764.0 449.9,1680.0 450.1,1669.1 408.1,1654.6 419.2,1047.5 457.5,797.0 457.6,789.7 458.6,789.7 459.1,786.7 764.9,764.6 1331.2,808.3 1386.8,775.8 1489.8,773.4 1460.7,140.0 1413.4,95.3 1402.2,93.5 1269.7,325.8 1270.0,240.9 1023.2,235.5 1022.8,174.8 690.3,227.9 156.8,215.5 58.4,212.8 62.6,710.6 73.8,710.9 70.0,1204.8 62.8,1204.6 62.2,1702.0 158.9,1704.2 186.5,1704.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[899.0,727.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3241292,41.5366558]}},{"type":"Feature","properties":{"resourceCoords":[158.0,713.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3277586,41.5366743]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p234 [2]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1791.6"},{"label":"split_canvas_y","value":"3158.8"},{"label":"split_canvas_w","value":"4532.4"},{"label":"split_canvas_h","value":"4521.2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"501.9,1882.5 562.0,1905.9 562.1,1897.8 964.3,1872.2 1438.2,1905.1 1482.0,1905.0 1561.5,1868.8 1538.4,1337.6 1558.6,855.2 1514.4,854.4 1478.1,824.2 1500.3,817.2 627.0,804.4 595.5,793.2 558.9,792.2 557.6,875.2 510.1,957.1 511.3,820.4 460.9,819.0 485.0,1575.3 504.6,1575.6 502.0,1863.8 501.9,1882.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0234__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1125.3,1375.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3234476,41.5310438]}},{"type":"Feature","properties":{"resourceCoords":[741.7,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3252826,41.5293895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0235/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p235","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0235/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0235","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"212.4,634.2 210.5,266.2 210.9,139.5 459.1,146.8 620.9,150.2 621.4,145.2 695.8,151.8 704.6,152.6 1367.4,180.2 1367.2,211.8 1458.8,219.9 1432.1,662.1 1444.8,662.5 1444.1,1277.7 1445.2,1652.2 1321.2,1650.2 1173.5,1643.7 1002.1,1640.8 933.7,1641.7 704.4,1635.2 459.1,1629.5 211.8,1622.9 212.5,1466.8 211.5,1006.7 212.4,634.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0235/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[953.0,1146.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33144869728797,41.54034569528111]}},{"type":"Feature","properties":{"resourceCoords":[706.0,155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33272557432765,41.543974095806654]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0236/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p236","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"42"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0236/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0236","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"334.2,1787.7 865.9,1796.8 1196.9,1741.7 1197.7,1802.2 1443.6,1806.0 1443.8,1890.6 1574.4,1658.2 1512.3,1648.5 1530.0,1127.8 1501.2,1025.0 1507.9,500.6 1553.7,489.2 1409.5,448.9 1409.5,407.6 1058.2,320.1 1059.1,351.2 931.0,315.4 811.3,313.0 566.8,310.2 344.6,306.5 1.0,313.3 1.0,344.9 91.5,352.3 68.2,794.1 80.9,794.4 84.8,1408.9 88.8,1782.9 209.8,1785.1 334.2,1787.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0236/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[571.0,804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3266578,41.542121]}},{"type":"Feature","properties":{"resourceCoords":[823.0,1301.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3254054,41.5402983]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0237/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p237","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0237/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0237","type":"ImageService3","width":1588,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"826.9,1710.7 474.0,1679.8 465.1,1679.0 244.7,1659.7 220.7,1175.2 250.3,1175.8 203.9,679.2 221.8,679.6 220.7,660.0 219.8,192.6 340.2,195.3 693.5,202.2 732.2,195.1 1206.2,204.9 1206.2,215.5 1424.1,221.9 1423.9,227.8 1451.5,243.1 1426.7,706.3 1460.6,707.0 1461.9,831.5 1458.6,1203.5 1455.4,1203.4 1454.1,1700.9 826.9,1710.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0237/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[717.0,1186.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3315731,41.5457992]}},{"type":"Feature","properties":{"resourceCoords":[963.0,696.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3303986,41.5476017]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0238/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p238","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0238/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0238","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"145.3,1662.0 145.4,1168.6 148.7,1168.7 151.1,799.6 149.5,676.2 115.9,675.5 139.4,216.5 389.9,218.3 389.9,210.6 838.5,195.1 878.2,195.2 878.2,193.8 1373.8,176.6 1374.0,212.9 1515.7,215.9 1499.8,460.7 1526.9,691.5 1506.7,896.1 1539.4,1704.9 1509.1,1818.0 1382.4,1849.1 1238.8,1808.5 1239.0,1767.2 888.9,1678.7 889.7,1709.7 762.0,1673.5 642.7,1670.7 398.8,1667.0 145.3,1662.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0238/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3255266,41.5457489]}},{"type":"Feature","properties":{"resourceCoords":[640.0,686.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3255492,41.5475632]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0239/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p239","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0239/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0239","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"252.4,1691.9 224.6,1530.8 219.5,1531.5 220.0,1161.8 220.7,717.7 220.8,667.1 221.3,244.7 466.8,228.6 466.8,223.4 466.8,200.7 964.4,211.4 1210.6,216.7 1210.4,239.7 1454.0,280.2 1451.9,714.5 1448.7,1214.3 1451.7,1352.3 1435.0,1355.0 1423.9,1718.7 1206.2,1712.6 1206.2,1702.0 732.8,1693.0 694.1,1700.0 341.2,1693.8 252.4,1691.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0239/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[958.0,707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33050091119692,41.55304210963945]}},{"type":"Feature","properties":{"resourceCoords":[713.0,1471.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33166216285882,41.55023586200688]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0240/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p240","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"46"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0240/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0240","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.7,1728.6 120.4,1713.7 130.4,1348.7 146.8,1346.1 143.4,1209.8 145.0,716.2 145.7,292.8 386.9,271.4 386.9,270.6 889.0,270.1 889.0,243.8 1119.3,248.6 1120.3,129.6 1145.3,60.3 1477.4,83.8 1526.5,360.6 1546.0,1248.5 1516.2,1725.0 1375.4,1722.3 1375.0,1686.2 882.2,1704.5 882.2,1706.0 396.6,1722.6 396.7,1730.2 147.6,1729.0 147.7,1728.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0240/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[889.0,1005.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3243881,41.5519806]}},{"type":"Feature","properties":{"resourceCoords":[889.0,572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3244026,41.5535861]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0241/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p241","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0241/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0241","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1427.0,708.3 1423.3,708.3 1398.7,708.2 1396.5,1001.6 1399.4,1001.8 1454.7,1690.7 1450.0,1728.2 1435.3,1728.5 1514.7,1785.7 1501.6,1786.0 1477.9,1844.0 1400.5,1863.7 1128.2,1779.0 970.8,1774.4 797.5,1817.0 526.6,1809.3 335.2,1844.0 248.9,1786.7 121.0,1779.3 76.3,1675.5 89.8,1078.8 135.7,757.8 86.6,426.7 106.8,104.9 222.2,42.3 438.4,37.5 1196.6,37.4 1419.1,69.4 1444.8,65.7 1427.0,708.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0241/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[693.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37276539760546,41.54985344917482]}},{"type":"Feature","properties":{"resourceCoords":[455.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37393659701728,41.54982825018367]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0242/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p242","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0242/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0242","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1408.5,1854.4 1273.5,1802.0 841.5,1783.8 735.1,1812.2 365.7,1768.8 243.3,1774.4 162.7,1718.8 177.3,1718.2 181.3,1680.6 112.0,992.9 109.1,992.8 105.3,699.4 130.0,699.0 133.7,698.9 138.3,56.1 241.0,39.4 1101.2,68.5 1364.9,67.1 1377.7,53.6 1361.6,678.9 1368.3,678.7 1378.9,1059.4 1368.0,1059.0 1359.6,1360.6 1367.0,1358.3 1369.9,1752.8 1312.3,1749.0 1312.3,1772.9 1467.2,1834.9 1408.5,1854.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0242/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1115.0,687.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36425215612655,41.548155482196506]}},{"type":"Feature","properties":{"resourceCoords":[1115.0,1673.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3642115558014,41.54452308943825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0243/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p243","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0243/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0243","type":"ImageService3","width":1571,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.6,95.5 48.1,717.8 54.8,717.6 65.7,1096.5 54.8,1096.1 46.7,1396.2 54.1,1393.9 57.2,1786.6 1.0,1782.9 1.0,1807.0 154.2,1868.1 245.6,1837.7 1418.5,1893.9 1418.6,1903.4 1428.7,1903.4 1512.4,1814.2 1510.6,1389.0 1510.4,1145.8 1508.2,492.8 1507.8,347.5 1458.5,346.4 1261.8,206.7 1262.2,267.9 1020.0,66.2 1019.8,16.6 1013.4,28.8 262.7,45.0 178.7,69.9 106.0,51.1 63.6,95.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0243/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1021.0,338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3582405,41.5496261]}},{"type":"Feature","properties":{"resourceCoords":[534.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3605951,41.544204]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0301/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p301","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0301/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0301","type":"ImageService3","width":1577,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"727.5,1755.7 96.2,1526.0 94.3,1399.7 157.2,1400.3 179.7,516.6 81.5,515.8 77.4,239.2 76.0,143.1 1428.8,108.4 1424.5,526.3 1457.6,526.6 1459.0,1411.0 1439.4,1411.0 1468.8,1763.1 1113.5,1759.6 896.8,1757.5 727.5,1755.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0301/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[951.0,1408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3639288,41.5929665]}},{"type":"Feature","properties":{"resourceCoords":[951.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3639332,41.5923216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0302/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p302","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0302/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0302","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"195.1,1789.4 158.8,1436.2 178.5,1435.9 159.9,547.4 126.7,547.7 122.9,127.8 291.4,120.2 1395.2,119.8 1396.8,555.6 1377.2,554.6 1424.3,1426.5 1417.3,1426.5 1427.0,1780.0 497.4,1786.5 195.1,1789.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0302/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[525.0,543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3617745,41.5945775]}},{"type":"Feature","properties":{"resourceCoords":[1427.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3596373,41.5922695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0303/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p303","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0303/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0303","type":"ImageService3","width":1580,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"173.0,1363.0 179.8,1363.2 157.0,504.3 176.2,505.8 186.3,77.0 1258.4,105.8 1257.7,48.8 1449.8,54.1 1442.8,155.8 1535.8,503.6 1546.0,1740.4 1465.3,1677.8 1466.6,1891.0 1285.7,1758.7 1239.9,1739.0 1162.8,1728.7 173.0,1711.0 173.0,1363.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0303/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[173.0,1363.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3596399,41.592918]}},{"type":"Feature","properties":{"resourceCoords":[173.0,1711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3596373,41.5922695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0304/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p304","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0304/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0304","type":"ImageService3","width":1580,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.2,1238.8 133.7,734.7 129.6,312.9 1130.8,336.5 1208.6,347.4 1254.9,367.5 1437.1,502.3 1437.0,286.6 1518.3,350.4 1521.8,1706.3 1579.0,1708.7 1579.0,1739.2 1197.3,1733.2 394.7,1725.4 137.3,1723.9 134.2,1238.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0304/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[124.0,1245.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35963117329314,41.59055227237988]}},{"type":"Feature","properties":{"resourceCoords":[124.0,740.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35964194240822,41.59148257795275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0305/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p305","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0305/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0305","type":"ImageService3","width":1580,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1452.0,1756.7 975.8,1774.5 975.4,1716.3 92.4,1705.0 88.8,717.1 113.6,717.4 698.9,271.1 887.4,275.1 1104.9,279.7 1451.3,286.9 1448.6,727.7 1443.6,727.7 1452.0,1113.6 1447.7,1113.6 1452.0,1756.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0305/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[531.0,1710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3649209,41.5896851]}},{"type":"Feature","properties":{"resourceCoords":[531.0,1119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3649294,41.5907701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0306/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p306","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0306/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0306","type":"ImageService3","width":1580,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"575.7,1727.7 171.2,1679.7 164.8,1089.3 169.1,1089.3 159.3,708.9 164.2,708.9 165.1,274.3 472.8,279.4 1388.2,297.0 1395.0,714.2 1399.0,1213.0 1405.4,1692.9 1405.6,1735.6 576.0,1745.6 575.7,1727.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0306/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[537.0,710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3617545,41.5914975]}},{"type":"Feature","properties":{"resourceCoords":[1399.0,1213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3596061,41.5905638]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0307/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p307","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0307/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0307","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.6,1736.2 58.9,1558.0 36.9,1472.5 82.5,1079.0 50.5,544.2 80.3,518.4 92.6,95.1 110.9,191.7 411.4,259.3 556.2,259.7 593.4,241.2 593.7,107.6 556.7,85.2 601.2,74.2 1065.3,71.7 1139.7,45.9 1425.5,61.5 1480.2,39.4 1476.6,819.2 1477.5,819.4 1481.4,820.0 1469.1,1332.8 1470.5,1332.8 1471.2,1824.3 1580.0,1824.3 1580.0,1832.0 1580.0,1854.4 1559.9,1854.4 1527.0,1854.4 1354.5,1855.0 1237.0,1854.6 62.1,1855.4 43.6,1736.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0307/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[851.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.4035273,41.6044606]}},{"type":"Feature","properties":{"resourceCoords":[851.0,1334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.4035246,41.6037122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0308/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p308","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0308/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0308","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"190.5,1816.0 82.8,1816.4 80.4,1329.9 79.1,1329.9 89.5,822.2 85.6,821.7 84.7,821.5 85.6,49.7 130.7,31.3 391.6,27.4 928.1,107.8 1012.6,93.1 1060.3,45.3 1188.9,48.9 1251.4,89.2 1471.9,85.4 1483.2,441.9 1446.7,757.9 1505.7,1000.5 1524.3,1257.7 1499.6,1840.3 204.3,1845.7 190.6,1845.8 190.5,1816.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0308/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[665.0,543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3976421,41.6066093]}},{"type":"Feature","properties":{"resourceCoords":[944.0,1326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3962756,41.6037344]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0309/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p309","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0309/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0309","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1493.3,287.5 1495.3,287.5 1490.9,835.2 1494.0,835.2 1491.0,1421.8 1488.3,1665.5 1489.0,1835.6 1489.0,1853.6 1205.4,1838.3 1205.4,1832.0 933.5,1824.3 931.1,1820.0 929.7,1815.7 628.8,1842.6 660.8,1866.5 563.4,1862.4 453.1,1810.1 139.9,1793.5 59.2,1737.8 50.3,1369.1 91.8,1207.1 72.0,827.3 114.1,554.8 105.3,175.1 241.7,175.8 363.5,147.1 419.1,81.1 596.2,63.7 1045.7,95.8 1443.9,65.0 1491.6,102.2 1508.5,101.2 1493.3,287.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0309/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[661.0,1294.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.373232,41.6037723]}},{"type":"Feature","properties":{"resourceCoords":[1489.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3691652,41.6019459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0310/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p310","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0310/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0310","type":"ImageService3","width":1582,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"472.5,103.5 734.6,143.7 942.1,109.2 1329.0,146.5 1460.9,354.9 1399.7,339.3 1392.7,795.2 1384.2,863.0 1395.3,863.1 1390.0,1333.7 1385.0,1836.6 887.3,1831.0 388.6,1826.0 388.9,1850.4 122.1,1875.7 122.2,1860.9 122.5,1690.2 126.8,1445.7 133.4,857.1 130.4,857.1 138.3,307.6 136.2,307.6 152.7,120.7 472.5,103.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0310/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[401.0,868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36786345438755,41.60544157948841]}},{"type":"Feature","properties":{"resourceCoords":[1145.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3641777737094,41.60196663286267]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0311/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p311","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0311/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0311","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"177.6,1800.2 179.9,1297.1 182.7,826.4 171.5,826.4 181.3,758.5 179.7,758.5 184.3,302.4 245.6,317.7 112.5,110.0 165.3,114.8 243.3,78.3 245.6,281.9 430.4,305.3 549.1,250.6 539.1,91.5 665.0,70.2 1038.5,98.6 1466.6,242.1 1488.2,331.1 1440.1,874.6 1485.1,1326.3 1449.2,1807.7 396.3,1801.5 177.6,1800.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0311/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[429.0,826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3618136,41.6055114]}},{"type":"Feature","properties":{"resourceCoords":[179.0,1537.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3630088,41.6029128]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0312/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p312","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0312/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0312","type":"ImageService3","width":1572,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1417.3,355.3 1422.4,355.3 1429.3,853.3 1415.6,853.2 1411.5,1349.5 1406.0,1349.0 1406.8,1474.2 1405.4,1708.7 1405.6,1850.4 1462.8,1850.8 1474.6,1860.9 1414.7,1857.7 791.1,1887.6 367.0,1874.2 83.2,1832.2 85.5,1400.7 53.5,1164.4 92.2,825.3 56.2,655.4 94.6,382.7 51.6,142.7 81.6,54.4 421.0,45.1 516.8,67.8 1077.7,30.1 1424.0,68.1 1417.3,355.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0312/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[659.0,1349.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3913812,41.5897224]}},{"type":"Feature","properties":{"resourceCoords":[1406.0,1349.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3877283,41.5897369]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0313/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p313","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0313/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0313","type":"ImageService3","width":1572,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1206.5,68.5 1322.9,68.2 1437.3,67.0 1448.5,554.0 1450.1,554.0 1451.6,884.1 1460.4,884.2 1468.8,1424.4 1465.6,1423.9 1458.7,1877.1 1510.7,1880.2 1571.0,1887.1 1571.0,1892.1 1571.0,1895.9 63.5,1857.2 43.2,1349.5 77.8,782.8 47.9,635.8 91.0,378.1 42.3,76.9 1206.5,68.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0313/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[583.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.40471456827056,41.598865466031945]}},{"type":"Feature","properties":{"resourceCoords":[1075.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.40229625203112,41.60002452371504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0314/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p314","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0314/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0314","type":"ImageService3","width":1573,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.5,60.9 158.1,60.9 191.4,60.9 1482.7,60.0 1458.8,581.7 1458.3,735.6 1494.7,860.2 1464.2,1277.7 1503.6,1651.5 1484.8,1841.9 1305.2,1881.7 426.1,1890.4 191.8,1882.9 191.8,1874.2 130.7,1866.8 79.0,1863.4 88.8,1412.2 91.9,1412.8 87.0,874.9 78.2,874.8 78.9,546.0 77.3,546.0 69.2,61.1 125.5,60.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0314/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[437.0,546.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3986934,41.6000448]}},{"type":"Feature","properties":{"resourceCoords":[1176.0,546.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3950541,41.6000519]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0315/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p315","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0315/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0315","type":"ImageService3","width":1571,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.6,515.3 135.3,210.8 134.8,122.2 398.6,94.8 398.1,70.6 891.5,71.0 1384.0,72.0 1439.2,72.1 1383.3,590.8 1382.1,1391.6 1452.5,1425.8 1392.6,1856.9 757.4,1873.6 757.3,1860.5 109.8,1818.4 87.1,1244.7 120.3,1153.3 200.8,1146.2 216.2,912.0 55.6,765.1 46.9,678.3 53.0,663.3 118.4,503.1 134.6,515.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0315/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[399.0,712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3678526,41.5995832]}},{"type":"Feature","properties":{"resourceCoords":[1384.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3630067,41.6019533]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0316/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p316","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0316/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0316","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"162.0,1866.4 222.1,1432.0 151.2,1397.5 151.9,590.8 207.9,68.2 370.3,68.5 1419.6,70.1 1418.9,80.5 1477.8,113.8 1487.8,548.9 1476.2,744.3 1420.7,836.3 1457.0,1076.0 1429.5,1739.6 1488.3,1813.5 1484.2,1872.3 1386.4,1869.6 1386.8,1898.7 162.0,1866.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0316/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[648.0,1034.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36056997688095,41.59842380263237]}},{"type":"Feature","properties":{"resourceCoords":[399.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36179984553574,41.60191938565293]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0317/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p317","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0317/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0317","type":"ImageService3","width":1586,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"197.6,838.0 211.2,838.1 204.2,342.2 199.2,342.2 205.7,56.2 213.2,57.0 845.0,45.4 1444.4,89.9 1420.9,345.7 1415.5,345.8 1415.2,464.4 1416.8,819.9 1420.0,975.1 1419.8,1319.0 1414.0,1358.1 1414.2,1811.3 1417.1,1837.6 872.7,1874.7 256.7,1841.5 245.0,1831.5 188.0,1831.1 187.8,1689.9 189.0,1456.5 188.2,1331.8 193.7,1332.2 197.6,838.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0317/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[433.0,839.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3865382,41.5915511]}},{"type":"Feature","properties":{"resourceCoords":[681.0,344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3853323,41.5933736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0318/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p318","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0318/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0318","type":"ImageService3","width":1591,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"615.3,1880.5 402.9,1840.0 157.4,1839.7 99.3,1843.9 96.4,1817.7 94.5,1365.7 100.1,1326.6 98.9,983.6 95.1,828.9 92.1,474.2 92.0,356.0 97.4,355.9 119.8,100.7 368.1,118.1 793.1,82.0 914.0,122.4 1093.5,129.9 1095.7,104.3 1217.2,157.1 1253.9,158.7 1254.9,158.7 1324.2,474.8 1325.1,622.6 1325.6,706.3 1326.3,825.1 1329.3,1348.1 1330.0,1466.7 1118.3,1848.1 927.6,1847.5 927.5,1864.5 615.3,1880.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0318/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[92.0,356.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3817254,41.5933803]}},{"type":"Feature","properties":{"resourceCoords":[1084.0,1848.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3768332,41.5878902]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0319/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p319","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0319/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0319","type":"ImageService3","width":1581,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"312.2,1212.5 311.8,1009.4 311.4,861.0 243.2,543.6 205.4,541.8 83.7,488.4 108.5,216.5 711.5,193.8 825.7,139.2 980.0,162.0 1012.9,202.6 1218.6,225.7 1292.2,220.7 1310.9,368.3 1302.4,368.2 1291.2,811.7 1293.0,1749.1 1045.9,1747.7 313.2,1737.3 312.2,1212.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0319/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[804.0,1245.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37323170629634,41.591547640115245]}},{"type":"Feature","properties":{"resourceCoords":[1288.0,1016.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37086227846936,41.592396917321295]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0320/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p320","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0320/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0320","type":"ImageService3","width":1588,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"179.6,817.8 187.3,375.2 195.8,375.3 175.9,228.1 502.3,203.3 501.1,176.8 1150.3,215.3 1151.0,276.5 1152.7,415.1 1202.0,415.6 1189.6,858.2 1158.1,857.9 1158.8,921.1 1474.8,1036.9 1465.6,1036.8 1175.4,1262.0 1163.0,1262.0 1169.0,1755.0 1144.6,1755.1 922.5,1755.7 801.0,1754.3 433.0,1754.9 188.5,1753.0 179.6,817.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0320/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[675.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36842321687986,41.590775912969995]}},{"type":"Feature","properties":{"resourceCoords":[181.0,1512.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37085350448717,41.590593184486764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0321/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p321","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"40"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0321/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0321","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.3,595.2 154.7,877.7 126.8,1189.9 86.6,1237.8 96.6,1806.7 298.7,1849.8 695.2,1837.0 1165.3,1878.9 1584.0,1834.0 1584.0,1811.0 1417.9,1811.2 1401.8,1566.0 1397.0,1566.0 1395.2,1442.1 1392.3,1073.5 1430.0,1073.4 1387.6,580.2 1384.2,580.2 1378.5,84.0 1131.6,85.0 399.7,81.7 401.1,200.4 191.1,583.9 1.0,584.4 1.0,601.4 109.3,595.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0321/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[411.0,1072.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3755951,41.5860926]}},{"type":"Feature","properties":{"resourceCoords":[1397.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3707622,41.5842606]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0322/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p322","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"35"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0322/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0322","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"206.9,1812.0 193.4,1567.7 188.6,1567.6 188.1,1444.2 189.1,1076.9 226.6,1077.2 189.4,585.5 185.9,585.5 185.3,91.2 429.2,95.2 796.2,97.6 917.4,100.0 1138.8,101.2 1144.8,101.3 1134.9,593.3 1109.7,593.1 1021.5,1084.0 1043.5,1084.2 1053.9,1084.2 1167.6,1495.7 1167.8,1577.8 1168.0,1614.3 628.5,1724.8 628.9,1794.2 629.0,1816.0 467.0,1814.5 206.9,1812.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0322/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[629.0,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3685835,41.5833536]}},{"type":"Feature","properties":{"resourceCoords":[433.0,1079.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3695708,41.5860681]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0323/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p323","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0323/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0323","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"390.0,1626.4 277.1,1213.1 266.7,1213.0 244.6,1212.8 334.6,720.4 359.9,720.6 371.2,226.9 389.6,227.0 830.7,233.9 830.8,262.9 1068.7,254.7 1068.6,232.6 1273.3,258.3 1274.1,363.7 1275.8,731.8 1359.1,732.9 1360.1,847.9 1360.5,1220.0 1370.4,1253.9 1370.7,1722.0 1125.5,1718.7 390.0,1708.8 390.0,1626.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0323/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[635.0,970.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3647602,41.5869667]}},{"type":"Feature","properties":{"resourceCoords":[1275.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3616359,41.5887732]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0324/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p324","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0324/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0324","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.8,240.1 532.5,243.3 532.8,221.6 662.8,224.0 1068.2,233.2 1261.0,238.7 1261.2,223.3 1343.2,227.8 1433.4,163.1 1445.7,107.9 1471.2,126.9 1413.0,255.2 1399.0,384.4 1361.3,416.9 1345.9,616.4 1384.2,902.1 1445.5,977.5 1403.6,1546.4 1425.5,1558.0 1414.2,1739.0 1445.5,1835.9 1315.8,1844.2 1177.2,1752.9 1177.5,1733.5 187.8,1707.4 193.6,1235.6 184.1,1201.3 188.6,826.3 189.1,710.3 105.2,708.2 108.2,337.2 108.8,240.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0324/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[688.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35872677831875,41.58604975126064]}},{"type":"Feature","properties":{"resourceCoords":[934.0,724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35757969086929,41.587870030888794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0325/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p325","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"38"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0325/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0325","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"44.3,361.1 1.0,360.5 1.0,377.9 66.4,371.9 48.0,1820.9 102.8,1869.4 836.7,1876.9 903.5,1833.3 1099.2,1816.9 1408.4,1871.7 1469.7,1855.3 1474.1,1128.7 1490.2,1128.8 1491.3,1004.9 1490.7,632.2 1491.7,259.2 1491.1,136.7 752.1,125.7 752.0,162.5 207.6,271.5 207.7,341.4 207.7,363.4 44.3,361.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0325/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[257.0,863.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3683174,41.5815277]}},{"type":"Feature","properties":{"resourceCoords":[1241.0,133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3635413,41.5842349]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0326/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p326","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"29"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0326/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0326","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"74.1,1130.9 90.1,1131.1 91.8,1007.8 93.0,636.6 95.8,265.3 95.8,143.3 341.1,148.2 1323.5,167.8 1323.4,187.1 1461.4,276.8 1454.8,471.3 1380.7,514.2 1384.5,749.3 1431.4,805.1 1387.9,1248.7 1476.9,1437.3 1492.9,1837.8 1216.7,1885.0 607.0,1886.8 137.7,1835.7 66.1,1854.3 74.1,1130.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0326/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[580.0,1638.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.359829,41.5787663]}},{"type":"Feature","properties":{"resourceCoords":[829.0,652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3586794,41.5824026]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p327 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2846.0"},{"label":"split_canvas_w","value":"3676.0"},{"label":"split_canvas_h","value":"4834.0"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"361.6,1829.0 398.1,1862.3 497.4,1863.0 593.3,1808.6 729.1,1835.2 769.8,1802.5 836.1,1788.2 866.5,1638.0 870.2,1095.0 728.0,921.6 599.9,854.7 523.2,769.8 159.4,748.9 85.7,788.8 55.5,895.0 86.2,1783.1 119.1,1809.0 361.6,1829.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,711.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.39664548356924,41.614193903446846]}},{"type":"Feature","properties":{"resourceCoords":[919.0,711.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.39213614839962,41.614217076604795]}},{"type":"Feature","properties":{"resourceCoords":[919.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.3920954453983,41.60977390708165]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.39660478056793,41.609750733923704]}},{"type":"Feature","properties":{"resourceCoords":[561.0,1343.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3938715,41.6118854]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p327 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1778.0"},{"label":"split_canvas_y","value":"2846.0"},{"label":"split_canvas_w","value":"4562.0"},{"label":"split_canvas_h","value":"3226.4"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"906.3,805.5 904.9,801.1 603.5,829.1 635.6,852.9 641.5,853.1 1330.5,1343.9 1383.0,1379.8 1448.8,1218.1 1465.2,1230.5 1465.8,923.2 1465.3,837.1 1181.1,822.8 1181.1,816.5 908.7,809.7 906.3,805.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0327__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[900.3,781.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3719245,41.6019407]}},{"type":"Feature","properties":{"resourceCoords":[1465.0,781.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3691652,41.6019459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0401/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p401","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0401/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0401","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1314.2,1892.4 902.7,1839.7 481.5,1861.1 98.0,1796.2 68.7,1535.7 153.2,1004.0 56.5,462.4 96.7,102.1 376.7,98.6 406.2,252.2 449.1,263.3 681.1,190.8 791.9,217.5 1004.0,131.1 1461.4,71.3 1496.0,148.2 1492.8,553.0 1540.5,942.7 1492.8,1384.3 1525.7,1857.7 1314.2,1892.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0401/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[992.0,514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.31609423450051,41.59820691382391]}},{"type":"Feature","properties":{"resourceCoords":[540.0,398.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.31723086297639,41.596783544179736]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0403/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p403","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0403/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0403","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1444.7,144.9 1453.0,382.4 1387.3,392.1 1384.8,874.2 1384.2,1079.0 1382.3,1334.2 1381.2,1606.6 1412.7,1606.9 1584.0,1814.4 1477.6,1815.1 1389.4,1858.3 833.5,1842.7 253.6,1633.1 100.0,1631.8 74.9,1558.5 85.9,1115.9 61.6,951.0 96.8,684.3 76.0,537.8 101.5,113.7 632.2,81.5 1282.9,134.4 1356.6,132.8 1444.7,144.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0403/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[704.0,1129.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.29406596650522,41.59082689766725]}},{"type":"Feature","properties":{"resourceCoords":[1385.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.29071920377922,41.59183586234917]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0404/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p404","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0404/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0404","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.5,78.8 388.4,106.2 945.3,91.2 1146.5,132.7 1465.3,109.0 1503.4,482.9 1483.7,717.2 1513.2,1296.2 1476.9,1841.8 1337.6,1859.2 1099.7,1821.2 883.6,1816.2 766.1,1859.5 499.0,1810.2 328.6,1809.2 155.2,1600.2 123.7,1600.0 124.1,1327.2 125.5,1071.7 125.6,866.5 127.0,383.8 192.8,373.9 183.9,136.2 95.7,124.2 106.5,78.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0404/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[645.0,868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2881622,41.5917934]}},{"type":"Feature","properties":{"resourceCoords":[1119.0,249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2858466,41.5940833]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0405/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p405","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0405/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0405","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"772.4,1576.5 786.9,1578.7 786.9,1571.8 1516.3,1539.1 1507.9,1406.7 1487.2,1080.1 1452.3,980.4 1448.7,954.4 1450.8,237.1 1433.6,236.9 1426.6,127.5 1101.0,141.0 677.5,90.7 281.7,152.7 128.8,155.6 113.8,130.4 127.8,297.7 176.0,340.5 183.6,551.6 152.3,632.3 155.5,799.8 78.2,954.2 68.9,1424.2 1.0,1426.7 1.0,1455.9 752.5,1573.4 772.4,1576.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0405/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1171.0,724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2693628,41.6025017]}},{"type":"Feature","properties":{"resourceCoords":[1171.0,479.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.26934,41.6034091]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0407__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p407 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"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":"6340.0"},{"label":"split_canvas_h","value":"7680.0"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0407__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0407","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"498.3,1379.9 516.8,1380.1 519.3,1380.1 518.8,1435.5 518.5,1476.1 1174.0,1714.0 1175.6,1722.0 1175.6,1730.0 1172.1,1744.7 1146.7,1755.6 1112.4,1753.8 1270.6,1869.4 1271.0,1864.8 1463.8,1872.2 1503.2,1838.7 1517.0,1838.4 1495.9,1731.9 1487.0,1745.0 1452.5,1200.2 1489.9,1211.1 1487.5,1099.1 1451.2,1110.5 1458.3,732.2 1452.3,732.8 1418.1,234.1 1403.0,233.9 1370.4,80.8 1231.1,109.0 853.0,116.0 805.3,87.8 638.2,101.8 470.5,75.8 376.4,103.0 62.1,116.0 69.0,225.3 86.1,225.5 83.9,941.7 87.5,967.6 122.2,1067.2 141.8,1376.8 498.3,1379.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0407__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[593.0,727.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2654635965521,41.602390472746066]}},{"type":"Feature","properties":{"resourceCoords":[78.0,236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.26797311310445,41.60424717307157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0408/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p408","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0408/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0408","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"251.6,41.7 343.5,66.0 486.0,38.3 1068.2,33.5 1368.8,47.4 1428.0,90.5 1479.0,71.5 1527.8,155.0 1551.4,513.6 1538.3,1876.3 604.5,1886.2 267.1,1854.5 174.8,1855.9 153.9,1748.5 144.9,1761.7 112.3,1212.8 149.9,1223.9 147.9,1111.2 111.4,1122.4 120.0,741.5 114.0,742.0 81.5,239.6 66.3,239.4 34.1,85.0 251.6,41.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0408/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[708.0,498.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2582583,41.6031768]}},{"type":"Feature","properties":{"resourceCoords":[1151.0,1233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2561292,41.600446]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0409/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p409","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0409/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0409","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"206.7,1670.6 238.9,1671.2 277.0,1790.4 471.1,1795.5 470.4,1803.6 840.1,1792.8 842.0,1767.5 1446.4,1836.3 1457.2,1825.7 1458.9,1182.7 1490.7,903.6 1464.1,128.1 1427.8,80.0 1255.2,63.8 781.0,74.5 521.3,47.0 400.2,203.8 403.0,169.2 392.7,143.2 377.9,139.2 376.9,139.2 369.8,139.1 361.8,140.4 103.6,796.2 58.7,794.6 56.8,799.1 55.2,794.5 6.6,792.8 5.8,814.0 1.0,948.3 1.0,1073.0 16.1,1067.6 9.7,1173.4 143.5,1168.6 156.5,1905.2 163.4,1905.5 206.7,1670.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0409/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[525.0,1204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.26788653213112,41.59805719505607]}},{"type":"Feature","properties":{"resourceCoords":[183.0,1331.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.26852408367509,41.5993087466403]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0410/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p410","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0410/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0410","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.5,1047.0 275.4,9.9 281.6,10.0 308.0,10.6 346.0,131.4 542.5,137.5 541.8,145.7 916.1,136.5 918.1,110.8 1529.7,183.4 1499.2,213.1 1511.4,1850.3 1127.7,1890.0 503.2,1848.4 398.7,1873.1 328.2,1857.3 227.5,1878.3 175.7,1859.0 108.5,1876.8 97.3,1872.9 53.5,1812.8 49.8,1046.0 79.5,1047.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0410/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[517.0,711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.27357440935606,41.59830222141033]}},{"type":"Feature","properties":{"resourceCoords":[855.0,1782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.27874587270561,41.59702629686061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0411/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p411","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0411/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0411","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1435.9,76.9 1436.6,357.1 1437.0,506.1 1448.4,505.9 1458.1,627.6 1432.2,626.9 1431.9,1053.7 1432.5,1178.6 1432.6,1745.2 1438.4,1814.7 1475.5,1797.7 1505.5,1857.0 1431.2,1884.8 1097.3,1890.3 726.9,1869.9 668.4,1836.5 297.7,1860.1 88.8,1826.0 41.6,1741.3 31.1,996.5 66.1,637.1 57.7,174.8 90.8,160.4 95.0,72.3 289.7,29.4 1151.8,34.2 1371.7,75.8 1435.9,75.5 1435.9,76.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0411/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[417.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.27748235533265,41.567658385736]}},{"type":"Feature","properties":{"resourceCoords":[1436.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.27247431339478,41.56767944514078]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0412/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p412","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0412/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0412","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"182.5,1767.2 145.5,1784.3 139.4,1714.8 137.6,1148.8 136.6,1024.0 135.4,597.6 161.3,598.3 151.3,476.8 139.8,477.1 137.4,48.2 137.4,46.9 1139.8,39.0 1344.9,90.8 1480.5,91.1 1524.2,204.8 1538.3,446.7 1535.2,1740.4 1509.2,1854.0 893.5,1859.8 655.4,1804.3 472.1,1822.2 292.6,1796.1 212.7,1826.3 182.5,1767.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0412/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1366.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2664520089462,41.56901617057898]}},{"type":"Feature","properties":{"resourceCoords":[635.0,1750.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.27003684982458,41.56544302776014]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0413/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p413","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0413/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0413","type":"ImageService3","width":1589,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"190.2,106.5 321.3,107.2 680.0,113.7 800.3,111.7 789.7,91.4 817.0,77.9 895.4,104.9 1126.7,100.4 1244.6,206.5 1336.5,224.5 1388.0,283.1 1494.7,319.4 1566.5,932.4 1547.6,1813.7 1474.4,1891.0 259.1,1891.6 75.4,1848.2 81.5,1481.0 28.4,1011.1 89.1,522.6 87.9,173.8 48.5,145.8 190.2,106.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0413/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[990.0,361.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.25328625388062,41.568850966380715]}},{"type":"Feature","properties":{"resourceCoords":[289.0,1825.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.26046382256364,41.571445236725424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0414/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p414","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0414/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0414","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1482.2,1862.2 203.3,1871.3 201.2,1877.5 187.7,1850.0 167.2,1860.6 165.4,1739.5 172.8,1378.3 173.8,1246.5 134.5,1103.7 143.2,1091.5 257.7,1039.6 527.4,969.0 519.8,791.6 80.0,803.3 124.2,684.9 205.4,659.0 205.3,522.2 90.6,478.0 97.8,263.6 319.5,244.8 445.0,119.0 607.5,59.6 951.3,48.1 1258.1,77.3 1258.2,76.1 1307.8,75.8 1297.7,87.9 1306.7,394.4 1319.5,390.9 1366.6,737.4 1329.0,748.4 1371.8,890.5 1403.4,1030.0 1404.0,1273.9 1463.5,1620.3 1491.0,1620.1 1482.2,1862.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0414/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[663.0,1665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.24963879591918,41.57025617073877]}},{"type":"Feature","properties":{"resourceCoords":[1061.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2476870337224,41.576060860176916]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0415/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p415","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.28"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0415/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0415","type":"ImageService3","width":1585,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.0,168.4 105.8,67.7 333.1,87.3 810.1,29.2 990.4,66.6 1333.4,65.4 1331.6,15.5 1367.8,15.9 1379.8,417.8 1380.3,552.2 1383.3,747.8 1384.3,915.5 1388.4,975.2 1398.6,1174.1 1406.2,1263.7 1537.3,1406.4 1533.5,1406.2 1546.3,1637.4 1526.8,1850.3 1490.5,1875.3 1385.7,1896.2 761.1,1881.1 602.7,1825.8 418.6,1824.5 252.2,1866.7 249.9,1919.0 237.0,1919.0 223.1,1919.0 167.7,1580.2 169.1,1341.9 139.4,1205.4 98.7,1066.3 135.5,1055.9 92.3,717.0 79.7,720.4 73.5,420.9 83.4,409.2 34.9,409.1 51.0,168.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0415/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.2469137,41.5775796]}},{"type":"Feature","properties":{"resourceCoords":[1585.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.2389976,41.5776207]}},{"type":"Feature","properties":{"resourceCoords":[1585.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.23893110000002,41.570447099999996]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1920.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.2468472,41.570406]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0416/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1946 | sanborn02345_006 p416","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:48:36Z","modified":"2026-10-18T09:48:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0416/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0416","type":"ImageService3","width":1591,"height":1920},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.8,1859.3 38.3,1804.1 89.5,942.5 67.0,62.5 343.2,113.9 969.1,47.4 1131.2,84.2 1492.0,91.3 1543.9,816.7 1518.2,1184.9 1544.1,1299.0 1533.3,1637.5 1388.7,1772.3 1297.4,1780.8 1094.7,1792.6 1033.8,1797.2 862.7,1799.5 663.4,1804.1 526.2,1805.6 116.5,1820.8 116.3,1857.7 100.5,1858.4 78.8,1859.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g02345194602:02345_02_1946-0416/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[482.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.231616,41.5762139]}},{"type":"Feature","properties":{"resourceCoords":[903.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.2399765,41.5746741]}}]}}]}