{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02345_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Gary, Indiana | 1915 | 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":"90"},{"label":"placed","value":"83"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef 63, georef-snap 19, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 16 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 41.60274,-87.32947 +/-103m); p29__1 (tier 1, 41.59466,-87.34174 +/-100m); p32 (tier 1, 41.59185,-87.33433 +/-270m); p58 (tier 1, 41.59319,-87.35471 +/-266m); p69__2 (tier 1, 41.55165,-87.34597 +/-127m); p70__1 (tier 1, 41.57312,-87.33917 +/-203m); p70__2 (tier 1, 41.57382,-87.34345 +/-173m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p1","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0001","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"124.6,576.2 80.0,500.6 125.3,485.9 165.8,139.7 708.1,136.5 844.3,54.8 1310.8,118.8 1407.1,315.4 1597.3,317.0 1597.5,863.3 1599.0,1582.2 1191.3,1829.2 593.8,1828.6 340.0,1828.3 307.5,1828.3 85.3,1341.9 76.1,1262.5 124.6,576.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1090.0,840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3485297,41.6056005]}},{"type":"Feature","properties":{"resourceCoords":[588.0,840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3497319,41.6055932]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p10","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0010","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"286.4,1554.3 290.5,1015.4 290.1,754.4 293.6,274.5 838.5,273.3 838.0,245.3 1331.0,286.0 1328.1,1021.3 1329.0,1347.2 1331.6,1561.5 1329.9,1712.3 829.4,1575.4 829.2,1609.0 286.1,1578.1 286.4,1554.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[830.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3358385,41.6020678]}},{"type":"Feature","properties":{"resourceCoords":[1331.0,276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3346559,41.6039189]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p11","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0011","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1591.5,1868.7 1085.8,1890.3 1085.5,1867.7 580.0,1864.6 580.7,1874.9 84.2,1842.0 78.0,1633.4 71.3,1302.3 61.1,555.1 47.5,253.6 129.7,26.9 522.3,108.6 831.5,62.2 809.0,107.6 1080.5,106.7 1125.5,31.1 1363.5,14.5 1520.9,16.5 1538.3,16.7 1587.5,734.6 1559.6,726.9 1591.5,1560.0 1588.0,1560.0 1590.8,1833.0 1591.5,1868.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[61.0,545.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3346559,41.6039189]}},{"type":"Feature","properties":{"resourceCoords":[1588.0,1560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3310133,41.6020948]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0012__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 | 1915 | sanborn02345_004 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.57"},{"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":"6640.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0012","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.6,62.0 119.7,765.5 92.6,757.0 97.1,1572.6 93.7,1572.5 87.7,1839.5 87.3,1865.7 615.6,1885.0 615.8,1880.2 1188.0,1860.8 1659.0,1839.1 1659.0,1811.2 1625.4,1810.5 1641.8,496.6 1562.8,420.4 1607.7,399.6 710.3,284.6 709.5,279.1 704.4,278.4 704.9,246.9 685.8,114.1 584.9,29.9 94.1,47.9 28.0,58.9 94.6,62.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1202.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3283050791069,41.6021368603305]}},{"type":"Feature","properties":{"resourceCoords":[77.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33105336909473,41.60207659499239]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p13","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0013","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.6,1860.8 95.3,850.9 102.9,850.9 86.0,57.6 278.4,56.8 276.5,95.6 838.4,96.9 838.4,99.7 1344.0,105.9 1344.0,108.3 1602.2,108.2 1592.6,847.2 1597.1,847.3 1588.3,1862.4 1384.6,1862.3 881.4,1861.0 191.3,1861.2 90.6,1860.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[841.0,851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3484594,41.6001448]}},{"type":"Feature","properties":{"resourceCoords":[335.0,851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3496718,41.600137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p14","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0014","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.2,1853.1 163.1,850.8 158.6,850.7 172.1,109.9 448.9,134.9 448.9,125.5 1025.2,130.1 1025.2,154.6 1556.9,155.4 1553.7,815.9 1558.1,860.1 1602.2,860.1 1521.0,1858.0 1486.7,1858.1 400.0,1852.7 155.2,1853.1 149.2,1853.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3445587,41.6001751]}},{"type":"Feature","properties":{"resourceCoords":[446.0,1853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3459278,41.5983517]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p15","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0015","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"538.6,1855.9 48.5,1861.5 122.7,853.0 78.2,853.4 73.4,808.7 71.3,106.6 71.3,80.9 574.8,131.7 574.8,115.7 1081.1,120.8 1081.1,115.5 1578.9,93.6 1578.9,105.3 1579.4,155.3 1580.6,894.6 1591.5,1591.3 1592.0,1854.0 538.6,1855.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1083.0,851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3408488,41.6001961]}},{"type":"Feature","properties":{"resourceCoords":[1592.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3396115,41.5983997]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0016","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"292.5,1589.4 281.4,896.2 280.0,160.4 279.7,129.3 777.4,110.2 777.5,125.4 1322.6,141.8 1322.7,171.5 1323.6,572.9 1326.5,889.8 1327.0,1849.0 293.1,1850.9 292.5,1589.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[782.0,852.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3384449,41.600208]}},{"type":"Feature","properties":{"resourceCoords":[1327.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3371155,41.5984137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p17","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0017","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"312.3,888.3 309.7,570.5 309.1,168.1 309.1,121.0 857.3,148.1 857.2,114.1 1363.2,248.5 1361.2,798.9 1361.0,879.6 1478.1,942.0 1532.5,971.0 1651.4,969.0 1648.0,1402.0 1648.9,1804.9 1539.2,1804.0 1451.0,1851.9 597.2,1855.3 312.0,1850.0 312.3,888.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1361.0,847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3346056,41.6002321]}},{"type":"Feature","properties":{"resourceCoords":[312.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3371155,41.5984137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__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 | 1915 | sanborn02345_004 p18 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4074.8"},{"label":"split_canvas_w","value":"2258.0"},{"label":"split_canvas_h","value":"3721.2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"552.1,1830.4 531.5,1830.2 541.6,1176.2 539.7,1117.7 52.6,1072.1 52.6,1081.0 37.9,1775.2 36.3,1854.9 171.8,1930.1 244.2,1929.0 245.2,1934.0 268.2,1936.0 324.3,1934.0 326.3,1929.0 402.4,1929.0 403.4,1937.0 405.4,1929.0 460.4,1930.0 461.4,1934.0 471.4,1930.0 563.0,1931.0 552.1,1830.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[62.0,1836.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33454361469802,41.600208895779346]}},{"type":"Feature","properties":{"resourceCoords":[534.5,1836.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33339497588626,41.60022952070514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__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 | 1915 | sanborn02345_004 p18 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"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":"6660.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1615.5,1851.7 1609.6,811.0 1605.7,140.5 1072.2,134.4 1072.3,143.2 573.0,160.6 572.9,138.3 74.0,131.4 77.6,200.3 80.4,858.2 101.1,857.9 121.6,1018.7 512.3,1018.7 564.5,1018.7 564.5,1131.1 564.5,1674.3 564.5,1817.4 579.6,1832.5 579.7,1854.7 831.5,1850.4 1328.1,1853.1 1615.5,1851.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1079.0,853.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3309839,41.6002574]}},{"type":"Feature","properties":{"resourceCoords":[1079.0,1852.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3309733,41.598448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p19","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0019","type":"ImageService3","width":1663,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.0,835.0 27.3,165.1 599.5,132.2 1071.4,101.3 1070.8,73.4 1624.0,71.5 1624.9,911.8 1624.8,1866.8 1131.8,1865.0 879.3,1868.0 31.5,1867.3 29.0,835.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[599.0,874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3283068,41.6002744]}},{"type":"Feature","properties":{"resourceCoords":[599.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3282883,41.5984595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0002","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"547.8,1804.3 271.0,1803.3 30.5,1802.5 30.4,1767.4 30.7,876.5 31.8,353.0 66.0,353.4 74.7,216.3 147.6,144.9 667.4,135.9 885.1,29.9 1202.1,83.8 1548.8,58.6 1628.2,167.5 1603.7,862.2 1626.8,863.1 1620.7,1807.9 547.8,1804.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[44.0,1813.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34725596686862,41.60381657333893]}},{"type":"Feature","properties":{"resourceCoords":[1596.0,1813.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3433776446586,41.60384717937622]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p20","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0020","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.8,917.4 89.7,60.3 846.4,58.3 1508.9,124.2 1542.6,591.8 1556.2,629.9 1591.6,630.9 1602.8,607.4 1616.5,765.7 1615.7,1753.0 1566.5,1889.7 1096.9,1890.5 595.1,1889.4 88.8,1891.5 89.8,917.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1096.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3233936,41.6003056]}},{"type":"Feature","properties":{"resourceCoords":[1603.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.32218,41.6003133]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p21","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0021","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1498.6,1889.5 1468.9,1829.5 1267.0,1783.8 802.8,1826.8 92.2,1711.6 78.5,1692.2 109.8,1054.0 93.9,1054.1 91.8,45.2 182.9,45.2 869.1,42.0 1369.4,41.0 1578.0,40.1 1586.0,40.0 1579.3,1044.0 1575.9,1044.0 1604.6,1812.4 1498.6,1889.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1333.0,1044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3472139,41.5965332]}},{"type":"Feature","properties":{"resourceCoords":[328.0,44.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3496457,41.598328]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p22","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0022","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.9,1054.9 155.3,1055.0 166.6,57.2 403.6,55.7 1490.9,55.5 1530.8,55.2 1564.3,1054.0 1545.5,1054.0 1558.0,1819.5 1522.3,1810.8 963.7,1902.6 428.3,1883.0 183.4,1814.0 176.9,1818.7 151.9,1054.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1556.0,1054.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3432237,41.5965589]}},{"type":"Feature","properties":{"resourceCoords":[1025.0,56.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3445325,41.5983603]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p23","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0023","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1582.6,1809.4 589.8,1828.4 591.1,1844.8 315.0,1863.8 98.7,1811.1 85.6,1047.2 104.5,1047.2 70.3,50.5 549.2,46.0 1590.6,46.1 1587.7,997.1 1582.8,1775.4 1582.6,1809.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[589.0,1046.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3420261,41.5965682]}},{"type":"Feature","properties":{"resourceCoords":[1090.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.340828,41.5983927]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p24","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0024","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1331.2,1859.2 796.6,1876.2 797.0,1847.9 291.2,1795.5 291.8,1770.4 311.2,992.2 331.9,41.3 1359.0,61.0 1339.4,1061.2 1387.2,1062.2 1379.4,1755.5 1333.5,1754.9 1331.5,1845.8 1331.2,1859.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[310.0,1046.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3395997,41.5965737]}},{"type":"Feature","properties":{"resourceCoords":[1359.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3371155,41.5984137]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p25","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0025","type":"ImageService3","width":1657,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1059.0,1878.8 1450.2,1896.8 1590.4,1819.3 1586.4,1045.1 1594.0,1045.0 1580.2,44.5 1567.8,44.6 1566.9,1.0 1258.5,1.0 1172.8,48.5 323.3,59.3 39.4,56.5 48.7,1061.0 96.8,1060.7 110.3,1834.3 605.3,1854.4 605.2,1845.7 1058.9,1860.7 1059.0,1878.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1594.0,1045.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3333591,41.5966189]}},{"type":"Feature","properties":{"resourceCoords":[1083.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3345903,41.5984214]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p26","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0026","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1618.2,1861.0 1619.5,51.8 1328.3,51.3 825.1,45.3 570.0,48.0 570.0,25.5 545.8,1.0 53.1,1.0 53.4,47.9 66.0,48.0 66.7,1060.9 59.0,1060.9 52.8,1844.7 61.6,1839.9 574.0,1913.4 1343.8,1914.2 1618.2,1861.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[570.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3321825,41.5984391]}},{"type":"Feature","properties":{"resourceCoords":[66.0,48.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3333871,41.5984293]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p27","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0027","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.5,43.4 877.5,44.7 1130.3,41.9 1624.0,44.0 1628.7,1038.6 1618.1,1038.5 1611.8,1905.7 383.8,1912.0 51.7,1813.0 31.6,1817.0 28.5,43.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[600.0,1038.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3282602,41.596648]}},{"type":"Feature","properties":{"resourceCoords":[1624.0,44.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3257838,41.5984761]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p28","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0028","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"581.1,24.1 1081.4,25.2 1549.5,24.6 1544.7,38.1 1596.8,91.1 1596.1,1909.4 63.3,1916.8 70.0,1036.1 80.8,1036.2 76.3,26.1 581.1,24.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[581.0,1036.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3245511,41.5966708]}},{"type":"Feature","properties":{"resourceCoords":[1587.0,1036.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3221359,41.5966865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0029__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 | 1915 | sanborn02345_004 p29 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.03"},{"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":"6652.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0029__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0029","type":"ImageService3","width":1663,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1451.5,45.2 85.4,84.6 128.6,138.2 52.4,489.3 87.4,1044.8 409.6,1141.0 453.5,1141.0 505.0,1141.0 505.0,1169.5 587.1,1194.0 620.6,1837.6 830.9,1911.5 1002.4,1916.4 1003.8,1874.4 1561.0,1890.0 1569.9,539.9 1566.9,375.1 1553.8,47.7 1545.2,1.0 1452.2,1.0 1451.5,45.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0029__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1561.0,207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3417429,41.5944553]}},{"type":"Feature","properties":{"resourceCoords":[1561.0,1890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416868,41.5918781]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0003","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1600.0,1831.0 77.6,1830.9 80.7,836.9 56.4,836.0 79.7,105.0 397.9,39.1 1596.7,184.4 1604.1,184.5 1599.3,1793.6 1599.3,1794.3 1600.0,1831.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[588.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3421038,41.6038636]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3397002,41.6038765]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0030","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.6,1915.8 415.0,1884.9 167.9,1878.8 165.4,752.4 161.8,615.0 148.4,341.9 140.8,302.1 63.3,302.8 64.7,112.7 51.3,113.7 50.0,97.5 1032.9,78.1 1033.0,69.4 1534.7,111.7 1535.2,213.2 1537.8,213.3 1547.4,808.2 1537.3,811.6 1560.9,1916.1 1550.6,1915.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[641.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3405563794482,41.594942391959584]}},{"type":"Feature","properties":{"resourceCoords":[145.0,1896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34174276675087,41.591846324455005]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p31","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0031","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1653.4,132.8 1653.5,115.3 1216.0,93.6 1215.9,102.0 738.5,74.8 738.5,1.0 693.9,1.0 693.2,88.1 693.0,101.0 175.2,123.9 175.0,196.0 177.6,196.1 183.0,778.5 173.2,781.8 188.9,1863.2 217.1,1864.1 961.2,1890.3 1212.4,1893.9 1594.0,1902.4 1588.8,1862.6 1629.3,1546.5 1584.8,128.4 1653.4,132.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[175.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3383617,41.5949542]}},{"type":"Feature","properties":{"resourceCoords":[686.0,1880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3370205,41.5918107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p33","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0033","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1552.0,1767.0 1552.2,1770.1 139.8,1732.9 137.1,1612.2 116.0,1612.9 104.2,1172.3 127.0,1172.1 105.6,241.3 104.3,185.6 355.4,186.3 1509.4,193.3 1544.6,1490.9 1552.0,1767.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[114.0,609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416773,41.5911128]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,1174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3382608,41.5900568]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p34","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0034","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1157.3,1862.2 1157.4,1821.2 606.8,1833.6 607.0,1761.2 83.9,1737.7 84.0,1499.1 84.2,192.4 124.1,193.8 901.5,220.6 1163.9,224.2 1562.5,232.8 1611.6,605.3 1544.6,1664.1 1604.3,1851.4 1157.3,1862.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[84.0,1180.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3382608,41.5900568]}},{"type":"Feature","properties":{"resourceCoords":[614.0,210.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3370205,41.5918107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__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 | 1915 | sanborn02345_004 p35 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.97"},{"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":"6656.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1540.2,214.8 1343.1,216.2 1061.8,134.7 737.1,341.8 702.4,804.8 19.4,822.7 20.4,1016.1 21.9,1294.5 55.9,1294.2 56.5,1304.9 64.2,1855.8 140.4,1856.1 1410.8,1860.8 1495.2,1859.1 1569.0,1817.7 1556.9,1238.4 1552.0,842.0 1540.2,214.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[390.0,1857.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3478375,41.5859533]}},{"type":"Feature","properties":{"resourceCoords":[1552.0,842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3450578,41.5877437]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__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 | 1915 | sanborn02345_004 p35 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"2384.0"},{"label":"split_canvas_h","value":"2984.4"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"551.0,136.0 113.3,126.4 35.8,580.2 79.7,677.8 528.2,682.0 551.0,700.1 551.0,136.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0035__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[551.0,136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416773,41.5911128]}},{"type":"Feature","properties":{"resourceCoords":[551.0,700.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416647,41.590095]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p36","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0036","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1541.7,1838.8 1551.0,848.6 1559.2,129.8 1560.5,1.0 1539.4,1.0 1538.6,116.5 1403.1,166.2 357.2,138.3 333.2,220.1 138.8,216.3 134.0,834.3 128.4,1224.8 125.2,1795.5 1541.7,1838.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[600.0,1810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3438874,41.585999]}},{"type":"Feature","properties":{"resourceCoords":[600.0,852.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3439325,41.5877281]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p37","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0037","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"135.3,1805.3 122.0,812.7 113.7,92.1 113.6,83.1 1530.5,135.1 1533.8,333.4 1558.7,1816.2 135.3,1805.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1072.0,1241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3393541,41.5869908]}},{"type":"Feature","properties":{"resourceCoords":[121.0,672.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.341639,41.5880211]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p38","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0038","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.9,342.4 57.9,142.9 57.6,104.0 574.2,122.0 574.7,193.4 1118.2,175.7 1118.5,216.2 1559.6,201.0 1579.7,261.8 1548.5,699.5 1617.3,711.1 1623.7,1837.1 586.4,1821.5 74.6,1811.1 59.9,342.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[69.0,1250.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3382055,41.5869722]}},{"type":"Feature","properties":{"resourceCoords":[1128.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3356263,41.5859242]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p39","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0039","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.0,1261.0 75.4,116.3 95.9,119.5 97.6,262.9 203.5,291.8 549.9,227.5 625.0,196.4 624.0,113.5 842.4,73.2 1197.6,129.5 1237.0,272.4 1493.8,299.6 1543.2,288.4 1543.8,657.2 1571.4,1836.9 1067.0,1840.1 111.3,1843.0 99.0,1261.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,1261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3344211,41.5859144]}},{"type":"Feature","properties":{"resourceCoords":[1558.0,1261.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3309333,41.5858844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0004","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.5,1797.1 73.5,220.2 356.4,223.6 394.9,112.5 796.5,117.2 834.5,50.7 1138.6,128.7 1510.5,133.1 1607.2,759.2 1602.3,1800.8 1648.4,1804.5 1648.6,1815.0 1648.9,1832.6 1103.0,1835.0 62.0,1833.0 61.5,1797.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[62.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3397002,41.6038765]}},{"type":"Feature","properties":{"resourceCoords":[1103.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3371761,41.6038952]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p40","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0040","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1091.6,1864.6 585.1,1863.6 585.1,1851.9 76.4,1842.7 73.8,662.3 81.0,293.5 137.3,282.0 161.5,123.8 1360.9,122.0 1513.2,125.2 1584.8,439.5 1594.7,1752.6 1548.4,1850.2 1569.2,1863.5 1091.6,1864.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1082.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3285266,41.5858633]}},{"type":"Feature","properties":{"resourceCoords":[1584.0,720.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.32734,41.5868874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p41","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0041","type":"ImageService3","width":1657,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1536.2,1849.8 1031.4,1809.0 815.8,1896.1 216.3,1809.6 127.7,1764.5 79.0,1378.8 60.0,1377.6 57.1,131.5 311.2,136.4 1551.8,160.1 1550.9,395.4 1552.7,908.2 1552.0,1156.7 1575.1,1157.3 1583.6,1577.5 1547.3,1578.4 1541.2,1757.8 1536.2,1849.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[555.0,141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3478375,41.5859533]}},{"type":"Feature","properties":{"resourceCoords":[555.0,1136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3478174,41.5841418]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p42","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0042","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1213.4,1874.8 1146.5,1823.0 715.9,1846.5 77.1,1781.6 41.3,1833.2 45.3,1741.0 49.4,1561.2 85.8,1559.9 72.5,1139.0 49.4,1138.6 47.3,889.6 39.7,375.8 38.0,139.9 120.7,138.6 193.1,98.3 1601.1,109.7 1613.8,1154.7 1636.0,1498.2 1650.4,1559.3 1650.5,1581.5 1650.8,1626.7 1601.0,1653.7 1531.0,1693.5 1533.7,1840.7 1519.2,1842.3 1213.4,1874.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1608.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416009,41.5849441]}},{"type":"Feature","properties":{"resourceCoords":[1138.0,106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3427385,41.5859895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p43","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0043","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1070.5,1158.3 598.6,1159.8 121.5,1155.3 100.6,106.8 1516.3,107.2 1541.7,1160.5 1070.5,1158.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1058.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3393112,41.5849258]}},{"type":"Feature","properties":{"resourceCoords":[112.0,679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3416009,41.5849441]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0044","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.0,1170.8 65.7,1163.9 51.6,111.6 565.0,120.3 1605.7,132.5 1611.2,706.7 1613.6,1179.1 302.0,1170.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[572.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33692604532175,41.58488559025267]}},{"type":"Feature","properties":{"resourceCoords":[1598.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3344397573138,41.58488576986943]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0045","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.8,1917.4 84.9,1326.7 125.8,863.6 14.7,874.3 13.5,726.1 84.4,686.8 134.7,660.1 135.1,592.3 121.2,530.6 102.4,184.8 580.7,197.9 1054.0,205.0 1526.4,215.8 1532.3,1214.6 1602.8,1287.3 1604.3,1520.2 1605.3,1653.7 1138.4,1653.5 1138.5,1626.8 1138.5,1611.5 191.3,1711.8 191.0,1931.5 145.3,1930.1 147.8,1917.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1058.0,202.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.339283575365,41.58406333756883]}},{"type":"Feature","properties":{"resourceCoords":[1532.0,202.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33813955785186,41.584069716074474]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p46","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0046","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"580.3,1752.0 139.6,1573.1 139.3,1501.2 138.8,1266.8 68.1,1193.2 66.4,187.6 305.2,197.3 1630.8,221.2 1630.1,1598.8 1609.2,1598.3 1627.5,1706.4 1126.5,1803.1 1126.7,1724.5 772.0,1767.1 580.5,1619.5 580.4,1677.1 580.3,1752.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1128.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3356075,41.5840233]}},{"type":"Feature","properties":{"resourceCoords":[580.0,202.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3369214,41.5840297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p47","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0047","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1110.9,1914.4 111.7,1896.7 100.4,523.4 99.5,47.3 1049.5,58.2 1551.0,62.4 1554.1,537.4 1563.5,1550.4 1564.8,1843.4 1110.9,1914.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,1535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33317888621069,41.582200510937945]}},{"type":"Feature","properties":{"resourceCoords":[1062.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33209305792155,41.584855931833744]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0048","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.0,1532.8 75.3,522.0 73.1,48.1 577.6,54.7 577.7,66.3 1080.0,64.8 1553.7,61.3 1592.8,86.0 1607.0,235.7 1576.8,1889.5 311.9,1891.0 147.7,1815.4 83.9,1825.2 83.0,1532.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1083.0,543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.32847774944356,41.583970712277846]}},{"type":"Feature","properties":{"resourceCoords":[88.0,543.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33087559964241,41.58396233849878]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p49","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0049","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1136.2,1805.3 665.3,1801.8 191.1,1803.5 191.3,1814.9 43.9,1712.0 43.2,943.1 118.4,514.6 164.1,515.1 160.4,295.8 1104.7,178.5 1104.9,193.8 1105.3,220.5 1571.7,212.2 1577.5,442.9 1587.8,853.8 1606.5,1805.4 1136.2,1805.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1113.0,816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3390601,41.5803676]}},{"type":"Feature","properties":{"resourceCoords":[1587.0,816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3379149,41.5803585]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0005","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"12.6,1509.6 12.5,1567.2 12.4,1584.9 328.5,1585.4 328.6,1814.3 831.2,1876.2 831.5,1822.1 1611.3,1814.3 1598.4,1576.0 1603.1,1575.9 1596.3,559.8 1590.1,559.9 1557.8,560.0 1334.9,78.7 1325.5,1.0 1325.3,1.0 1323.0,36.2 75.5,39.9 28.4,764.5 63.5,1511.8 12.6,1509.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[833.0,563.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3521344,41.60381]}},{"type":"Feature","properties":{"resourceCoords":[833.0,1580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.352127,41.6019739]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p50","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0050","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.9,1800.1 1067.8,1728.3 1069.4,1809.0 562.4,1816.5 127.4,1815.7 115.5,866.6 108.2,456.9 102.9,165.0 541.5,335.4 540.6,261.3 539.8,204.3 731.4,347.4 1081.7,299.9 1082.7,377.7 1576.8,274.5 1602.6,413.3 1544.4,807.9 1627.2,1090.5 1613.7,1907.8 1467.9,1800.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[115.0,829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3379149,41.5803585]}},{"type":"Feature","properties":{"resourceCoords":[1063.0,1501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3356235,41.5791345]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p51","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0051","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.8,305.8 627.3,305.6 1099.5,310.6 1570.9,312.2 1592.5,1329.7 1598.8,1728.2 1126.3,1812.4 1125.1,1754.5 654.0,1841.8 656.1,1948.0 638.8,1948.0 638.2,1877.5 271.6,1887.8 271.2,1835.4 136.1,1784.0 59.9,1605.0 162.6,324.6 152.1,317.2 151.8,305.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1116.0,1298.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3390072,41.576799]}},{"type":"Feature","properties":{"resourceCoords":[1592.0,1298.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3378601,41.5767926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p52","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0052","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"561.9,1917.3 126.0,1729.1 127.2,1346.7 124.7,326.7 563.0,334.0 1074.0,334.0 1073.5,252.7 1475.7,330.9 1620.9,441.7 1589.0,1456.9 1548.0,1456.8 1547.9,1601.3 1073.9,1851.2 1074.0,1749.5 562.0,1808.2 561.9,1874.7 561.9,1917.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1074.0,334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3356105,41.5785762]}},{"type":"Feature","properties":{"resourceCoords":[563.0,334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3368391,41.5785658]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0053","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.8,1754.4 150.2,492.4 167.5,492.5 166.3,386.2 638.3,302.6 639.0,360.6 1112.4,280.0 1112.2,262.9 1549.3,445.9 1551.7,679.2 1563.5,1828.7 1363.0,1822.2 892.3,1816.1 418.5,1813.2 23.1,1807.9 22.6,1776.7 149.8,1754.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[652.0,1826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33895913019178,41.57323077954366]}},{"type":"Feature","properties":{"resourceCoords":[1124.0,1826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.33782221222451,41.573231052864955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p54","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0054","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1393.3,1881.6 1570.0,1883.2 1615.0,1802.5 1570.2,1042.5 1620.5,386.7 1571.8,69.2 1085.3,27.9 1086.1,1.0 1045.7,1.0 1046.0,142.1 580.5,388.8 580.4,288.8 77.0,347.6 77.0,413.0 77.4,684.6 79.0,1817.0 1392.0,1817.0 1393.3,1881.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[79.0,1817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3367637,41.5732264]}},{"type":"Feature","properties":{"resourceCoords":[1516.0,1817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3332499,41.5732504]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p55","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0055","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.4,1923.6 385.3,1924.0 1330.0,1920.0 1436.7,1919.6 1440.5,1474.3 1456.1,1474.5 1450.5,1118.7 1455.3,1118.8 1463.6,224.1 1418.2,79.1 1124.4,22.9 162.0,64.9 149.3,1.0 119.4,1.0 147.4,1923.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1002.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3639288,41.5929665]}},{"type":"Feature","properties":{"resourceCoords":[1002.0,1470.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3639332,41.5923216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p56","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0056","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"623.1,1927.2 212.3,1926.8 218.3,1481.4 233.9,1481.6 230.1,1125.7 234.9,1125.8 247.6,230.8 202.9,85.5 324.1,109.3 435.2,101.9 464.9,50.0 613.0,101.9 768.5,42.6 1250.0,27.7 1616.1,66.0 1552.0,270.6 1523.3,268.4 1578.2,1147.8 1542.8,1147.1 1543.9,1503.2 1551.8,1929.9 623.1,1927.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[666.0,1488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.361775,41.5922975]}},{"type":"Feature","properties":{"resourceCoords":[666.0,236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3617745,41.5945775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p57","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0057","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"166.2,1451.9 166.1,1094.9 201.9,1095.8 149.1,214.0 178.1,216.2 243.4,11.3 801.0,70.9 1504.0,50.6 1600.3,370.2 1546.4,934.4 1582.7,1320.7 1604.2,1322.7 1590.6,1486.3 1501.4,1417.5 1506.2,1884.5 1256.8,1884.5 173.0,1879.7 166.2,1451.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0057/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.36004797755406,41.59490608812987]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.35602501284008,41.59491449808337]}},{"type":"Feature","properties":{"resourceCoords":[1668.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.35601196544606,41.59137413645166]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.36003493016004,41.59136572649816]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p59","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0059","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1379.6,1619.8 1238.5,1619.7 989.0,1618.0 990.4,1734.4 538.8,1800.6 539.1,1858.7 100.2,1868.1 94.0,1115.1 85.9,120.3 323.6,122.2 1267.7,124.3 1498.0,124.8 1428.3,513.3 1438.2,513.3 1379.6,1619.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[989.0,1618.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3638145,41.588775]}},{"type":"Feature","properties":{"resourceCoords":[533.0,523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3649294,41.5907701]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p6","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0006","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.5,1829.4 68.5,1589.7 73.2,1589.7 70.4,568.3 317.2,568.3 912.9,568.1 1319.2,321.4 1319.9,531.4 1320.0,568.0 1570.2,568.0 1578.6,568.0 1572.8,1587.6 1580.5,1587.6 1577.2,1877.3 1319.6,1877.9 1319.6,1875.5 815.1,1870.2 815.1,1867.4 254.6,1867.1 256.4,1828.3 80.5,1829.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1320.0,1588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3472732,41.602004]}},{"type":"Feature","properties":{"resourceCoords":[1320.0,568.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3472901,41.6038359]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p60","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0060","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1523.5,1566.4 1353.2,1567.6 1270.4,1578.5 1110.3,1574.3 1017.4,1553.2 254.8,1543.9 135.7,1542.4 91.0,1541.8 92.0,304.1 92.0,300.2 532.4,294.4 532.6,236.1 986.1,173.5 985.6,56.7 1236.0,60.5 1339.2,61.4 1356.8,560.5 1577.6,563.5 1578.9,793.4 1576.8,1575.5 1523.5,1566.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[587.0,1048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3647602,41.5869667]}},{"type":"Feature","properties":{"resourceCoords":[92.0,544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3659745,41.587874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p61","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0061","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"755.6,1680.9 506.1,1681.8 251.3,1682.8 304.9,573.7 295.1,573.8 363.2,184.1 650.5,183.5 1580.3,183.2 1587.0,693.8 1596.0,1185.0 1601.7,1682.8 755.6,1680.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[732.0,694.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3616855,41.5905685]}},{"type":"Feature","properties":{"resourceCoords":[1596.0,1185.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3595881,41.5896702]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p62","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0062","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"172.1,1720.8 172.0,1702.0 172.0,1200.0 168.6,704.6 167.7,189.7 1251.5,200.2 1500.9,201.6 1501.3,710.2 1508.3,1749.7 1508.4,1758.6 172.1,1720.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[172.0,1200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3595881,41.5896702]}},{"type":"Feature","properties":{"resourceCoords":[172.0,1702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3595783,41.5887647]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p63","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"22"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0063","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1354.1,1750.4 1199.7,1750.0 498.6,1737.0 446.3,1726.7 449.3,937.9 448.2,706.1 225.6,703.0 208.4,199.6 504.1,202.5 756.0,205.0 1609.9,218.8 1610.1,259.4 1612.1,722.5 1447.0,720.2 1449.8,974.3 1449.0,1735.0 1354.1,1750.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[756.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3616359,41.5887732]}},{"type":"Feature","properties":{"resourceCoords":[1449.0,1735.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3599273,41.5860294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p64","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0064","type":"ImageService3","width":1664,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"173.1,1700.0 112.0,1710.0 114.5,952.7 112.4,699.8 276.7,702.5 275.8,241.5 275.7,219.7 1607.1,263.8 1606.9,507.2 1606.5,1274.5 1604.5,1733.8 606.3,1710.2 173.1,1700.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[612.0,708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3587486,41.5878548]}},{"type":"Feature","properties":{"resourceCoords":[112.0,1710.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3599273,41.5860294]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p65","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0065","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.0,73.0 199.6,94.4 340.9,17.9 1591.6,48.8 1634.8,16.9 1588.2,731.0 1559.0,731.0 1577.7,1782.8 1578.8,1831.7 1606.0,1832.2 1560.2,1920.9 1088.7,1926.2 1083.8,1903.2 582.0,1856.2 582.2,1877.7 93.1,1868.0 70.2,1829.3 102.0,73.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1061.0,731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3341088,41.5530827]}},{"type":"Feature","properties":{"resourceCoords":[1559.0,731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3329098,41.5530726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p66","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0066","type":"ImageService3","width":1660,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"106.5,1922.5 105.5,1873.5 87.0,822.0 116.1,822.0 162.9,108.1 193.7,56.8 1061.6,24.8 1346.4,59.0 1527.4,184.3 1618.5,976.8 1568.8,1905.5 153.9,1883.7 133.7,1922.9 106.5,1922.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[87.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3329098,41.5530726]}},{"type":"Feature","properties":{"resourceCoords":[1592.0,822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3292855,41.5530427]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p67","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0067","type":"ImageService3","width":1656,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.8,1863.7 126.0,1282.0 61.1,1042.5 122.9,819.1 125.4,557.9 74.2,445.5 121.1,214.5 100.3,50.1 167.0,103.0 309.5,29.7 1541.1,33.8 1569.9,68.0 1571.2,770.8 1575.1,858.5 1574.9,1418.8 1576.5,1892.6 1576.4,1931.7 1566.8,1931.8 330.2,1908.2 111.0,1905.5 75.8,1863.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3388994,41.5495858]}},{"type":"Feature","properties":{"resourceCoords":[72.0,1905.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.341293,41.5476839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p68","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0068","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.3,1903.5 59.5,1422.7 55.9,854.1 51.4,765.0 45.3,51.8 61.1,70.4 546.1,26.3 546.4,16.4 556.3,16.3 569.6,39.5 1064.4,56.2 1064.5,34.4 1571.4,89.1 1576.4,134.5 1601.5,1907.8 1658.0,1941.0 1658.0,1948.0 433.3,1948.0 64.5,1943.5 64.3,1903.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[54.0,807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3376919,41.5496844]}},{"type":"Feature","properties":{"resourceCoords":[1575.0,636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3340737,41.5499963]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__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 | 1915 | sanborn02345_004 p69 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.62"},{"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":"6676.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.3,1611.6 1594.1,753.4 1484.5,118.7 1290.7,43.4 163.7,128.9 73.4,337.5 94.2,762.9 220.5,942.5 794.7,1034.0 869.1,1079.1 868.6,1213.4 1010.4,1221.4 1092.2,1296.3 1120.0,1878.4 1582.7,1857.7 1628.3,1611.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[728.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3962569,41.5897459]}},{"type":"Feature","properties":{"resourceCoords":[726.0,1078.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.396253,41.587929]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__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 | 1915 | sanborn02345_004 p69 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3134.0"},{"label":"split_canvas_y","value":"5177.2"},{"label":"split_canvas_w","value":"1075.6"},{"label":"split_canvas_h","value":"2618.8"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1027.8,1407.3 951.5,1327.0 846.7,1321.5 841.5,1849.0 1036.4,1875.0 1027.8,1407.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0069__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[783.5,1294.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34673038639174,41.552428190207415]}},{"type":"Feature","properties":{"resourceCoords":[1052.4,1294.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34608235697657,41.55241915542891]}},{"type":"Feature","properties":{"resourceCoords":[1052.4,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34611154771929,41.551229982197064]}},{"type":"Feature","properties":{"resourceCoords":[783.5,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34675957713446,41.55123901697557]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0007","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.7,1609.7 1547.8,1644.5 1013.2,1647.3 1013.1,1622.7 433.6,1621.9 433.6,1631.4 155.2,1608.1 158.3,1330.8 150.7,1330.8 156.7,316.1 435.0,316.1 1546.0,315.9 1548.1,1390.2 1547.7,1609.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1009.0,316.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3446121,41.6038502]}},{"type":"Feature","properties":{"resourceCoords":[1548.0,1330.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.343294,41.6020272]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p71","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0071/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0071","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"199.7,32.4 816.5,45.1 996.3,48.8 1593.6,53.6 1593.6,50.2 1610.2,60.1 1596.3,314.9 1641.2,1287.0 1628.4,1793.0 1597.7,1899.8 293.2,1926.3 112.3,1909.6 68.4,1868.5 36.0,767.1 50.2,142.9 95.7,36.3 91.2,30.9 199.7,32.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0071/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1318.0,552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3351858,41.5458295]}},{"type":"Feature","properties":{"resourceCoords":[570.0,40.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3388622,41.5476694]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p72","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"30"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0072","type":"ImageService3","width":1658,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1604.0,899.5 1602.9,1014.0 1602.1,1568.2 1602.2,1901.3 824.2,1920.6 119.0,1896.8 53.5,1851.9 32.9,881.9 47.8,290.6 65.2,74.1 98.6,48.9 1194.0,18.8 1535.3,48.9 1611.2,149.0 1612.3,899.4 1604.0,899.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[545.0,382.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3537392,41.5751248]}},{"type":"Feature","properties":{"resourceCoords":[950.0,1212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.351699,41.5720959]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p73","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0073","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.9,706.1 76.2,142.1 77.7,25.4 86.1,25.3 86.1,46.8 973.0,26.8 1492.8,34.8 1587.1,60.8 1585.4,540.9 1581.5,1052.3 1578.7,1546.5 1590.8,1547.3 1606.2,1897.4 1602.6,1895.2 899.0,1918.0 121.5,1872.3 77.5,1815.6 78.2,1045.2 73.1,1045.3 73.9,706.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1111.0,1025.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34345157471928,41.569726072642716]}},{"type":"Feature","properties":{"resourceCoords":[875.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.34462577569133,41.57147686274558]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0074/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0074","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.3,59.2 207.4,37.4 218.7,51.1 415.0,57.0 650.3,62.3 884.1,69.2 983.6,74.1 1645.8,79.2 1646.0,99.8 1646.2,111.8 1616.2,111.3 1640.5,1101.0 1604.7,1238.1 1602.3,1818.2 1579.2,1866.2 1180.3,1911.5 1028.1,1894.1 856.4,1924.7 398.7,1928.1 142.1,1923.8 79.4,1884.0 64.7,1535.8 52.5,1535.0 56.0,1043.5 60.7,534.9 63.1,57.5 69.3,59.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0074/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1238.0,567.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3354900093278,41.57145424825108]}},{"type":"Feature","properties":{"resourceCoords":[57.0,1053.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3411757048469,41.56961933408498]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0075","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"82.9,1704.0 52.4,1420.6 48.6,701.8 102.3,192.1 217.9,178.4 377.4,239.7 511.4,241.0 638.4,212.6 717.2,150.1 717.9,86.8 785.1,65.1 1380.8,89.9 1559.3,110.3 1602.7,346.3 1587.7,346.1 1586.9,1313.6 1586.4,1814.3 1336.2,1811.7 1212.8,1808.7 839.1,1804.5 590.9,1799.3 340.6,1796.5 167.8,1793.0 82.0,1793.5 82.9,1704.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1085.0,1507.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36844142822284,41.59078386737876]}},{"type":"Feature","properties":{"resourceCoords":[1591.0,410.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36604577289175,41.59477632004842]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p76","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0076","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"123.9,21.4 162.3,21.2 335.7,24.6 587.0,27.4 836.2,32.5 1211.3,36.5 1335.1,39.5 1586.3,42.0 1586.2,424.3 1585.4,1047.5 1607.9,1047.8 1595.0,1551.2 1584.7,1551.0 1584.2,1931.9 1556.3,1932.3 1556.3,1920.2 255.4,1929.7 42.5,1905.1 34.0,129.6 76.0,36.5 76.2,21.7 123.9,21.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,1036.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36957494538514,41.586075296787236]}},{"type":"Feature","properties":{"resourceCoords":[835.0,1537.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36955092220823,41.58426719635957]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0077","type":"ImageService3","width":1661,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.4,926.2 68.7,544.3 79.0,544.4 90.3,39.6 150.3,40.2 535.4,43.9 582.4,54.3 663.2,56.2 705.0,50.6 790.9,49.7 817.9,54.2 844.1,59.3 1195.1,64.4 1272.4,64.3 1319.9,56.4 1350.6,51.2 1568.5,55.0 1570.2,431.3 1572.5,1065.7 1574.6,1442.9 1573.2,1569.4 1575.7,1904.1 1373.1,1890.2 799.5,1920.1 274.8,1905.4 83.9,1866.7 41.4,1487.9 41.5,926.7 69.4,926.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0077/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1086.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36101283842865,41.58150790747351]}},{"type":"Feature","properties":{"resourceCoords":[67.0,1063.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.36592438906932,41.58237633123837]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p78","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0078","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.6,1566.7 101.8,1440.6 99.4,1064.3 96.5,431.6 94.4,56.3 595.2,64.5 1598.3,81.0 1599.5,457.1 1600.7,605.5 1600.7,608.6 1626.7,716.8 1612.5,715.5 1627.5,1369.7 1587.2,1892.7 443.1,1923.6 103.3,1900.6 100.6,1566.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1101.0,825.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3538531316431,41.58328689865002]}},{"type":"Feature","properties":{"resourceCoords":[348.0,571.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35749335946795,41.58418819534054]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__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 | 1915 | sanborn02345_004 p79 [1]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.99"},{"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":"6660.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.5,1852.1 1096.4,1866.1 1592.8,1873.1 1592.7,1830.5 1662.2,1377.1 1664.0,1373.3 1664.0,1371.3 1614.3,1372.1 1568.3,792.2 1505.6,769.8 962.7,775.4 929.6,749.4 926.4,612.8 734.4,608.4 723.4,560.4 682.8,556.5 698.4,312.9 636.0,231.4 528.9,208.9 333.6,93.8 141.2,75.6 134.4,156.9 90.4,122.7 92.6,354.9 94.0,606.0 99.8,1119.3 100.9,1244.3 104.3,1624.5 105.5,1852.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[343.0,857.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3551711,41.5896594]}},{"type":"Feature","properties":{"resourceCoords":[1094.0,1367.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3514944,41.5878057]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__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 | 1915 | sanborn02345_004 p79 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.37"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3042.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"824.0"},{"label":"split_canvas_h","value":"2297.6"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"783.5,462.6 784.0,548.4 965.5,550.5 965.5,448.6 961.9,1.0 853.7,1.0 783.5,462.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[760.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34910779677546,41.58695774982629]}},{"type":"Feature","properties":{"resourceCoords":[966.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34861127896873,41.58695821382581]}},{"type":"Feature","properties":{"resourceCoords":[966.5,574.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34860956247068,41.58591614023331]}},{"type":"Feature","properties":{"resourceCoords":[760.5,574.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.34910608027741,41.58591567623379]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__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 | 1915 | sanborn02345_004 p79 [3]","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":"3849.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2810.8"},{"label":"split_canvas_h","value":"3014.0"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1028.2,716.4 1283.0,738.0 1271.7,707.6 1211.0,711.4 1214.8,586.3 1351.3,571.1 1427.2,612.9 1449.9,711.4 1512.2,714.7 1505.4,77.2 995.6,71.8 999.0,453.3 1001.2,603.8 1001.2,606.9 1028.2,716.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0079__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1256.2,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35023491480506,41.585960416120635]}},{"type":"Feature","properties":{"resourceCoords":[1256.2,578.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.35023508235837,41.58417874655454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p8","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0008","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1598.9,1613.0 1095.4,1637.2 1095.4,1642.6 583.1,1639.5 583.2,1655.7 73.6,1606.4 73.0,1409.3 65.2,317.5 1588.0,309.5 1597.1,1065.2 1597.6,1400.1 1598.9,1613.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[582.0,1344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3420843,41.6020363]}},{"type":"Feature","properties":{"resourceCoords":[1596.0,1344.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3396766,41.6020397]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p80","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0080","type":"ImageService3","width":1659,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"772.4,96.7 930.0,97.0 930.0,211.2 1180.5,242.2 1180.7,215.2 1561.6,211.6 1571.9,604.1 1568.1,604.2 1568.3,1104.0 1572.8,1103.9 1574.0,1606.1 1581.9,1606.0 1566.5,1923.7 1554.8,1907.2 273.3,1909.9 117.0,1868.4 83.7,1823.5 96.8,1279.7 60.4,1074.6 102.7,698.5 97.5,91.2 436.6,44.0 772.5,59.1 772.4,96.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[930.0,1105.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3533271,41.5983116]}},{"type":"Feature","properties":{"resourceCoords":[930.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.353345,41.6019614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0081/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p81","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0081/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0081","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"440.2,1889.0 225.8,1904.1 90.3,1862.7 90.2,1674.6 37.5,1422.5 26.2,903.3 41.1,244.8 93.8,98.1 221.7,45.4 387.2,30.3 1090.8,71.6 1327.9,18.9 1572.5,56.5 1606.3,218.3 1595.1,549.4 1632.8,985.8 1621.6,1764.7 1591.5,1900.1 647.1,1926.6 440.2,1889.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0081/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1058.0,1249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37055798318556,41.60378824379608]}},{"type":"Feature","properties":{"resourceCoords":[497.0,1249.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.37324789432282,41.60378853309305]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Gary, Indiana | 1915 | sanborn02345_004 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T11:15:28Z","modified":"2026-10-18T11:15:28Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0009","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1336.8,1592.7 790.0,1573.8 790.0,1558.6 290.6,1575.6 290.4,1557.0 290.8,1335.2 292.9,1004.8 290.0,259.0 1339.0,259.0 1337.5,743.5 1338.9,1007.1 1337.0,1551.2 1336.8,1592.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094gm:g4094gm_g023451915:02345_1915-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[290.0,259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3397002,41.6038765]}},{"type":"Feature","properties":{"resourceCoords":[1339.0,259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.3371761,41.6038952]}}]}}]}