{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01737_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bloomington, Illinois | 1950 | 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":"113"},{"label":"placed","value":"88"},{"label":"unplaced","value":"25"},{"label":"fit sources","value":"georef 50, georef-snap 38"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"17 sheet(s) cut into 44 panels"},{"label":"unplaced pages","value":"p16__2 (tier 1, 40.48359,-89.02458 +/-100m); p1__1 (tier 1, 40.46350,-88.98570 +/-118m); p32__2 (tier 1, 40.48292,-88.98514 +/-126m); p4__1 (tier 1, 40.49330,-88.97629 +/-100m); p55__1 (tier 1, 40.47171,-89.00468 +/-172m); p56__1 (tier 1, 40.47749,-88.99396 +/-101m); p60__1 (tier 1, 40.47331,-88.98816 +/-100m); p62__2 (tier 1, 40.47046,-88.99152 +/-100m); p62__3 (tier 1, 40.47032,-88.99252 +/-100m); p63__2 (tier 1, 40.47523,-89.01457 +/-152m); p64__1 (tier 1, 40.46287,-88.99337 +/-100m); p64__2 (tier 1, 40.46280,-88.99369 +/-254m); p64__3 (tier 1, 40.46079,-88.99155 +/-100m); p64__4 (tier 1, 40.46108,-88.99254 +/-122m); p64__5 (tier 1, 40.46274,-88.99381 +/-174m); p65__1 (tier 1, 40.49740,-88.98839 +/-128m); p65__2 (tier 1, 40.49728,-88.99211 +/-172m); p65__3 (tier 1, 40.49578,-88.99151 +/-144m); p65__4 (tier 1, 40.49671,-88.98908 +/-100m); p69__1 (tier 1, 40.50674,-88.99457 +/-100m); p70__2 (tier 1, 40.50943,-88.99718 +/-100m); p71__1 (tier 1, 40.47622,-88.99797 +/-100m); p71__2 (tier 1, 40.47630,-88.99818 +/-127m); p81__2 (tier 1, 40.46257,-88.99347 +/-100m); p86 (tier 1, 40.48118,-88.97675 +/-501m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0010","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3.7,354.1 345.6,346.9 368.7,321.9 429.6,335.5 434.9,345.0 783.1,337.7 805.3,321.3 859.3,336.1 1114.2,330.7 1113.5,369.9 1407.8,375.2 1657.0,379.6 1654.7,543.0 1605.0,542.0 1604.0,585.0 1654.1,587.8 1649.4,923.8 1642.1,923.6 1640.3,1677.8 1611.0,1677.8 1110.6,1679.5 609.3,1685.7 306.7,1682.5 8.2,1684.3 3.8,356.8 3.7,354.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1096.0,909.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99002756417127,40.488166975676165]}},{"type":"Feature","properties":{"resourceCoords":[601.0,1684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99113647211563,40.48677160804066]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p11","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0011","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1665.0,1966.5 1665.0,1821.8 1663.5,1532.0 1645.5,1207.1 1665.0,1158.6 1665.0,665.6 1606.9,667.2 1604.2,70.2 1600.1,70.2 1280.2,79.9 948.4,84.2 948.4,114.3 948.4,203.9 685.8,680.2 14.4,678.4 13.7,678.4 7.3,1221.2 1.0,1221.1 1.0,1973.4 20.8,1973.4 918.4,1970.8 1606.0,1966.9 1622.2,1966.8 1665.0,1966.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[945.0,1224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9865461,40.4881976]}},{"type":"Feature","properties":{"resourceCoords":[592.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.987431,40.4902198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p12","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0012","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"26.9,1052.8 375.3,1053.4 602.3,1051.9 715.6,1272.4 715.4,1392.8 702.9,1392.8 715.4,1416.4 714.7,1923.0 715.2,1922.8 745.5,1914.5 746.2,1898.6 981.5,1912.5 981.1,1909.8 1459.8,1941.8 1529.3,1924.5 1553.8,1871.5 1531.0,1579.3 1563.3,1089.0 1548.7,494.0 1656.1,496.9 1294.5,121.5 1293.9,151.6 1018.9,217.6 1019.0,211.1 712.1,178.8 712.2,153.4 288.3,78.5 288.3,92.5 278.8,77.4 257.4,90.1 138.3,94.8 34.3,94.3 1.0,94.5 1.0,396.1 29.4,395.4 28.3,644.5 18.3,669.0 26.6,833.2 26.9,1052.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1129.0,1341.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.979692,40.485998]}},{"type":"Feature","properties":{"resourceCoords":[1011.0,677.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9803201,40.4883215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p13","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"33"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0013","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1548.5,54.7 1535.3,521.1 1545.0,1243.2 1603.2,1246.0 1594.8,1981.4 1272.5,1976.9 943.2,1972.5 886.5,1972.3 553.0,1966.0 469.4,1965.4 469.4,1974.4 80.8,1935.9 119.5,1511.2 74.8,1475.0 83.6,1340.9 44.7,1251.2 88.4,692.2 60.8,399.4 110.0,105.7 617.4,89.8 792.3,31.1 1130.1,32.0 1451.0,74.5 1500.6,52.7 1548.5,54.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[942.0,945.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.009963,40.48894]}},{"type":"Feature","properties":{"resourceCoords":[553.0,1966.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.011586,40.485302]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p14","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"20"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0014","type":"ImageService3","width":1660,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"391.2,1979.1 394.4,1929.6 1002.7,1701.8 1006.0,1684.0 1332.2,1750.3 1616.3,1804.6 1619.2,1705.4 1617.2,1223.7 1620.4,70.5 956.0,64.0 841.6,64.2 168.6,54.1 1.0,53.5 1.0,71.7 88.2,80.0 14.8,426.1 80.6,776.8 16.0,1092.1 43.4,1906.2 95.7,1962.1 391.2,1979.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1006.0,1684.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.009545,40.482511]}},{"type":"Feature","properties":{"resourceCoords":[956.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.009782,40.48533]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p15","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0015","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"829.7,1932.8 790.2,1928.2 672.2,1909.3 512.8,1880.0 119.0,1801.0 121.5,1702.3 117.8,1223.0 117.0,75.8 764.0,80.0 763.8,95.2 1622.0,87.8 1489.4,702.9 1423.9,701.9 1219.4,1125.7 1219.6,1221.5 1172.8,1222.2 1133.4,1303.8 829.7,1932.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,80.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00677,40.485383]}},{"type":"Feature","properties":{"resourceCoords":[119.0,1801.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.008138,40.482336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p16 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6640.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0016","type":"ImageService3","width":1660,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"269.5,692.0 204.4,690.8 1.0,1109.0 1.0,1290.1 995.0,1317.5 995.0,1319.0 1565.8,1322.8 1563.9,704.4 1565.0,86.0 1565.0,74.9 403.1,81.3 269.5,692.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[995.0,1319.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.003329,40.483266]}},{"type":"Feature","properties":{"resourceCoords":[1565.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.002101,40.485472]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p17","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0017","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.8,637.8 109.8,71.5 159.4,72.0 879.6,77.6 1546.0,82.8 1542.1,641.1 1540.0,1318.2 1543.4,1934.7 929.0,1929.9 111.5,1923.5 110.3,1305.4 112.0,687.4 111.8,637.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[929.0,1313.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.000158,40.484417]}},{"type":"Feature","properties":{"resourceCoords":[929.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.000254,40.486595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p18","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0018","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"657.3,71.7 1065.0,72.0 1477.6,78.7 1475.1,694.0 1468.4,693.9 1489.0,1308.5 1487.3,1308.5 1466.0,1927.8 1063.0,1951.7 1062.0,1921.2 200.4,1912.6 198.2,1297.2 201.8,621.4 206.8,64.1 657.3,71.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1065.0,1306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.996727,40.484483]}},{"type":"Feature","properties":{"resourceCoords":[1065.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.996829,40.486663]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p19","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0019","type":"ImageService3","width":1671,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"147.0,1323.0 148.7,1323.0 130.4,710.1 137.1,710.3 141.8,96.7 314.0,96.2 961.8,100.1 1538.0,113.8 1577.3,114.8 1576.0,729.6 1568.7,729.6 1560.2,1338.1 1557.3,1792.8 1574.0,1855.0 1612.9,1868.9 1233.4,1876.3 1191.6,1822.6 1144.8,1835.4 959.3,1833.2 958.0,1944.0 528.1,1938.6 528.2,1963.2 248.8,1954.2 223.3,1993.3 203.9,1993.2 121.6,1992.7 147.0,1323.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[958.0,717.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9939125,40.4856351]}},{"type":"Feature","properties":{"resourceCoords":[958.0,1944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9938004,40.4834616]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p1 [2]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.80"},{"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":"6724.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0001","type":"ImageService3","width":1681,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"700.9,1131.6 700.9,1327.5 1260.5,1815.6 1279.9,1815.8 1286.7,1815.9 1293.4,1816.0 1302.2,1816.2 1614.5,1821.7 1617.3,1608.8 1622.8,1369.6 1627.3,1120.8 1632.5,972.3 1615.9,971.8 1616.2,693.0 1603.8,692.9 1628.4,128.3 1649.0,128.6 1636.3,97.1 1020.1,119.6 434.7,89.6 288.9,41.3 70.1,75.8 39.5,163.9 69.2,348.4 83.0,348.0 84.0,394.0 69.9,395.1 54.2,902.4 73.7,933.4 131.4,935.4 254.2,937.8 346.0,1017.9 700.9,1020.0 700.9,1131.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1622.0,972.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.999047,40.4922192]}},{"type":"Feature","properties":{"resourceCoords":[1329.0,126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0005313,40.4951181]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p2","metadata":[{"label":"streets","value":"18"},{"label":"intersections","value":"45"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0002","type":"ImageService3","width":1648,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"524.6,1857.4 313.6,1857.2 80.5,1855.0 81.0,1640.5 83.9,1399.5 85.7,1148.9 89.3,999.3 72.5,999.0 69.8,718.1 57.3,718.1 75.8,149.2 96.7,149.2 83.5,117.7 199.4,112.2 235.9,62.3 385.3,35.0 724.5,67.4 737.2,80.8 738.0,148.0 931.4,146.9 1152.7,148.3 1531.9,147.8 1531.9,172.5 1566.0,172.2 1564.9,17.6 1579.8,17.6 1554.6,492.2 1575.7,506.0 1582.3,527.6 1583.0,592.6 1580.8,781.5 1581.7,911.8 1620.9,794.5 1626.8,795.4 1473.8,1887.8 1473.4,1918.5 1315.2,1914.4 1248.2,1910.5 1153.9,1910.4 1154.1,1859.9 939.7,1858.2 733.0,1859.0 524.6,1857.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[738.0,148.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9961618,40.4952152]}},{"type":"Feature","properties":{"resourceCoords":[733.0,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995975,40.489315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p20","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0020","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.3,720.5 29.3,108.2 32.4,108.2 329.7,105.7 631.2,108.2 1130.5,100.8 1629.0,98.0 1635.3,711.2 1643.0,731.6 1643.9,769.3 1611.0,768.0 1608.0,814.0 1636.3,814.5 1638.1,1012.9 1641.1,1329.5 1639.0,1842.6 723.2,1852.3 635.5,1851.8 106.7,1855.5 94.0,1854.4 55.1,1841.2 37.4,1779.6 32.6,1326.7 31.1,720.6 38.3,720.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[633.0,1335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9910483,40.484586]}},{"type":"Feature","properties":{"resourceCoords":[1629.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.988783,40.486827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p21","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0021","type":"ImageService3","width":1671,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.0,851.6 28.4,851.0 30.8,817.1 65.0,815.0 64.0,768.0 56.4,768.2 56.3,747.4 51.7,128.8 102.0,128.9 1006.2,128.8 1550.6,127.2 1567.8,743.5 1558.2,743.5 1567.6,1364.3 1578.7,1364.2 1573.6,1888.2 1214.0,1891.7 691.0,1891.0 56.8,1888.6 60.4,1371.1 58.3,1051.7 57.0,851.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[691.0,747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.987264,40.485765]}},{"type":"Feature","properties":{"resourceCoords":[691.0,1891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.987197,40.483747]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p22","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0022","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1303.9,1894.5 593.7,1896.4 200.5,1895.6 98.7,1896.5 104.0,1371.6 92.8,1371.7 83.7,749.8 93.2,749.7 76.2,132.3 224.8,131.9 241.2,131.9 285.1,131.8 981.0,132.0 1434.2,128.5 1661.0,568.5 1661.0,809.0 1636.0,809.0 1635.0,826.0 1646.0,828.0 1646.0,855.0 1661.0,856.0 1661.0,1867.6 1305.7,1965.5 1303.9,1894.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[981.0,132.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.983212,40.486938]}},{"type":"Feature","properties":{"resourceCoords":[293.0,1371.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9847314,40.4847253]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p23","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.15"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0023","type":"ImageService3","width":1671,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"252.9,1964.7 252.1,1950.6 1418.2,1846.8 1417.2,1818.5 1670.0,1802.3 1670.0,251.2 1524.3,233.4 1146.0,181.0 874.5,146.8 562.5,104.0 560.5,120.9 1.0,372.2 1.0,419.6 20.3,419.5 22.2,806.4 65.0,810.0 62.0,855.0 22.5,854.4 27.4,1840.2 52.8,1949.3 252.9,1964.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1146.0,181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.008138,40.482336]}},{"type":"Feature","properties":{"resourceCoords":[54.0,1881.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.010909,40.479267]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0024","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.6,1766.7 43.9,1787.3 1188.0,1785.5 1187.6,1801.0 1627.6,1800.3 1633.2,1520.5 1633.7,1487.2 1640.5,896.0 1612.0,896.0 1611.0,851.0 1640.7,850.4 1641.2,631.4 1661.0,632.0 1661.0,617.4 1661.0,582.1 1641.3,580.5 1637.4,281.3 1643.3,69.7 1599.7,69.8 1535.9,69.9 1537.7,10.2 1480.0,9.8 1476.2,70.0 1212.8,70.5 1212.1,99.9 1.0,132.7 1.0,147.4 73.5,157.6 19.1,937.2 84.5,1766.0 53.6,1766.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1629.0,1039.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00656054028813,40.47760534983623]}},{"type":"Feature","properties":{"resourceCoords":[1629.0,1494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0065276480204,40.47679617958033]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p25","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0025","type":"ImageService3","width":1671,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"121.7,721.1 13.7,704.2 18.0,848.0 66.0,850.0 64.0,895.0 4.0,895.0 1.0,998.4 1.0,1992.0 84.8,1992.3 87.2,1871.4 88.1,1828.5 897.9,1832.5 1577.5,1833.3 1564.7,1353.2 1548.7,1353.1 1542.2,743.0 1542.0,124.0 1542.0,122.5 460.6,99.6 161.0,725.6 121.7,721.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[898.0,741.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0047839,40.4821488]}},{"type":"Feature","properties":{"resourceCoords":[1542.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.003329,40.483266]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p26","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0026","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.0,1366.6 85.7,1366.3 82.2,749.7 85.0,124.0 662.1,127.0 1489.1,131.4 1491.2,753.3 1489.0,1379.0 1567.7,1378.8 1643.3,1860.8 1616.7,1860.7 684.5,1855.5 112.6,1852.0 102.0,1366.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1489.0,1379.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0000215,40.4811539]}},{"type":"Feature","properties":{"resourceCoords":[85.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.003329,40.483266]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p27","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0027","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.7,751.9 100.0,140.0 711.6,145.5 1570.9,153.4 1575.5,293.1 1576.9,768.9 1575.6,1854.8 247.1,1842.3 245.2,1842.3 172.7,1367.8 95.2,1367.6 99.7,751.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[713.0,1375.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.998582,40.481179]}},{"type":"Feature","properties":{"resourceCoords":[100.0,140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00011,40.483329]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p28","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0028","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"213.9,174.4 617.2,148.4 615.7,200.8 717.9,200.5 743.1,161.1 1023.7,167.6 1023.5,142.9 1455.1,144.7 1462.1,352.6 1463.0,1377.0 1450.9,1438.2 1442.8,1858.1 1039.0,1856.0 224.7,1851.8 221.4,761.7 218.0,283.9 213.9,174.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1463.0,1377.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9936945,40.4812871]}},{"type":"Feature","properties":{"resourceCoords":[1039.0,1856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9946443,40.4804188]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p29","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0029","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1285.7,1903.8 1182.1,1908.1 979.2,1900.3 668.1,1903.5 668.0,1896.0 232.0,1898.5 237.1,1476.9 248.8,1415.3 240.5,386.8 231.9,178.0 231.5,66.3 418.6,65.6 465.5,51.9 508.5,105.4 893.1,92.0 903.8,92.9 1439.0,89.7 1437.3,518.9 1443.3,763.5 1438.0,1639.4 1438.5,1891.4 1269.9,1892.5 1285.7,1903.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[244.0,799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.993739,40.4823704]}},{"type":"Feature","properties":{"resourceCoords":[668.0,1896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9926997,40.4804593]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0003","type":"ImageService3","width":1681,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"394.3,1892.2 363.2,1885.5 351.5,1898.2 177.2,1902.6 176.4,1880.7 176.7,1850.3 321.6,765.5 315.8,764.6 277.6,881.2 275.9,752.0 276.9,564.6 275.8,500.1 269.1,478.7 248.1,465.1 268.6,26.0 790.0,26.0 928.0,21.0 1078.0,26.0 1293.3,25.0 1465.7,72.6 1466.0,84.5 1442.2,79.0 1492.7,695.3 1493.1,751.0 1496.0,1073.1 1496.1,1341.5 1497.6,1607.7 1497.6,1623.0 1497.7,1668.8 1363.9,1912.6 1020.6,1912.2 893.2,1910.5 743.1,1908.4 743.4,1888.4 613.4,1891.7 585.9,1884.2 574.6,1892.7 397.1,1897.1 394.3,1892.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1015.0,1903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98877570658503,40.48916160511037]}},{"type":"Feature","properties":{"resourceCoords":[230.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9925321574106,40.49528880143311]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0030","type":"ImageService3","width":1662,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"273.6,1901.3 272.5,1910.4 32.5,1914.7 15.6,1897.0 14.8,1648.1 19.4,783.0 13.3,541.3 14.7,117.4 102.5,118.0 1018.0,108.5 1646.6,109.2 1646.0,492.4 1643.2,539.5 1647.1,899.1 1644.3,994.0 1612.0,994.0 1610.0,1043.0 1642.8,1043.0 1638.0,1208.5 1646.6,1655.3 1644.7,1890.2 381.8,1897.5 381.7,1902.1 273.6,1901.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[389.0,986.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99009341712205,40.48213564889979]}},{"type":"Feature","properties":{"resourceCoords":[1617.0,1441.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98719564560342,40.48137532587998]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p31","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0031","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"600.9,88.3 1065.5,79.5 1460.8,76.3 1597.3,74.6 1586.2,513.7 1577.0,513.7 1567.0,967.2 1585.5,967.0 1591.7,1424.5 1588.7,1424.5 1617.2,1885.4 1331.5,1889.1 84.7,1902.5 85.0,1663.8 73.0,1209.8 80.1,895.4 73.7,529.9 76.2,482.0 74.1,92.6 600.9,88.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1159.0,1429.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98465,40.481436]}},{"type":"Feature","properties":{"resourceCoords":[1159.0,519.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.984683,40.48303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p32 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6656.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0032__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0032","type":"ImageService3","width":1664,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.2,1902.7 556.8,1895.8 872.3,1890.8 903.4,1818.8 821.0,1058.7 1036.5,992.4 1046.9,777.8 1476.5,760.3 1619.2,394.1 1571.0,30.7 1100.2,9.7 1099.3,41.6 683.6,162.0 680.9,91.0 105.9,99.8 96.2,537.0 87.0,537.1 78.4,988.6 96.9,988.4 104.5,1443.8 101.4,1443.9 131.2,1902.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0032__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[712.0,985.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98226174301782,40.48227669742182]}},{"type":"Feature","properties":{"resourceCoords":[712.0,1903.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98223477842284,40.480661583184514]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0033","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.0,1095.1 37.1,1317.4 7.0,1318.1 8.2,1363.8 37.1,1363.7 32.1,1963.7 361.9,1968.0 1274.5,1964.2 1599.1,1967.0 1624.6,1514.5 1595.8,1514.5 1606.0,1020.5 1607.9,1020.5 1597.0,523.0 1617.9,523.0 1593.3,39.5 866.5,37.4 52.1,32.1 51.1,75.3 48.1,212.6 1.0,212.6 1.0,525.3 37.3,525.1 31.9,739.9 37.0,1043.5 68.0,1046.0 70.0,1057.0 67.0,1096.0 37.0,1095.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[859.0,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00473461804887,40.48020960615002]}},{"type":"Feature","properties":{"resourceCoords":[59.0,1514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00648387657216,40.47759794023903]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0034","type":"ImageService3","width":1664,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"99.4,1018.7 84.2,524.1 105.0,524.0 76.2,43.3 599.1,40.2 1521.7,34.2 1549.8,34.0 1565.4,761.5 1569.7,1018.4 1571.3,1500.7 1570.1,1953.4 953.2,1960.5 425.4,1960.1 99.0,1960.1 120.4,1510.0 91.7,1510.2 97.5,1018.8 99.4,1018.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[482.0,1505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0020389140988,40.477694017609785]}},{"type":"Feature","properties":{"resourceCoords":[1564.0,808.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99956234827212,40.47895862153097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p35","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0035","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1358.3,1976.5 1127.2,1977.0 976.7,1983.5 936.0,1984.0 936.0,1984.6 177.6,1981.3 183.0,1523.0 185.8,1034.8 183.8,774.7 174.7,38.1 1527.1,41.7 1524.8,473.7 1528.2,738.7 1525.1,1033.1 1560.9,1033.2 1516.3,1976.5 1358.3,1976.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[653.0,532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.998503,40.479486]}},{"type":"Feature","properties":{"resourceCoords":[183.0,1523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.999515,40.477738]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p36","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0036","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"444.2,1966.0 426.0,1966.1 467.3,1023.2 431.5,1023.2 433.6,729.0 429.3,464.2 430.1,32.4 1255.3,31.6 1262.3,335.9 1258.0,525.0 1261.3,903.7 1258.6,1025.5 1264.7,1966.8 1240.7,1966.8 877.8,1970.5 620.1,1967.7 444.2,1966.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1258.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9946104,40.4795595]}},{"type":"Feature","properties":{"resourceCoords":[849.0,1024.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995519,40.4786728]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p37","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0037","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"661.8,1002.7 665.7,881.4 666.0,504.5 672.1,316.4 668.0,13.4 778.8,14.4 799.0,15.0 804.4,14.6 1075.3,17.0 1073.0,71.6 1073.0,1006.0 1071.7,1006.0 1072.1,1943.1 990.7,1942.4 700.8,1939.9 658.9,1939.5 661.8,1002.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9936745,40.4795882]}},{"type":"Feature","properties":{"resourceCoords":[1073.0,1006.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9936349,40.4787064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p38","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0038","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"617.2,1910.3 612.0,1910.3 609.2,1005.2 610.4,1005.2 608.0,102.8 610.0,50.0 1033.0,50.9 1033.2,87.3 1035.7,524.1 1034.2,1359.2 1016.3,1478.0 1031.3,1478.2 1047.8,1946.3 1028.5,1939.5 887.8,1916.2 753.9,1911.1 617.2,1910.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1035.0,1009.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9926234,40.4787237]}},{"type":"Feature","properties":{"resourceCoords":[610.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9937073,40.4804369]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0039","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1414.5,1903.4 1411.4,1810.5 1405.6,1222.7 1406.5,473.3 1403.0,95.1 1402.9,1.0 1295.9,1.0 1295.0,9.0 1058.0,15.0 974.0,9.0 973.1,1.0 902.0,1.0 902.0,8.0 892.0,11.0 791.0,16.0 593.0,10.0 289.4,15.6 290.1,44.8 299.6,484.1 311.6,1323.8 295.5,1443.6 310.6,1443.6 334.7,1914.0 357.8,1921.8 456.4,1969.8 557.5,1994.4 557.2,1962.6 1414.7,1933.5 1414.5,1903.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1049.0,961.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99086531723341,40.478763351834225]}},{"type":"Feature","properties":{"resourceCoords":[1049.0,1437.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99084805314196,40.47790559516841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p40","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0040","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"230.1,34.7 1497.8,21.8 1500.0,256.4 1498.7,631.4 1505.2,1006.0 1502.9,1493.7 1505.0,1968.0 883.1,1974.7 236.1,1973.5 233.2,1879.1 229.1,1281.7 232.3,520.3 229.8,135.9 230.1,34.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0040/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[875.0,514.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.988538,40.479684]}},{"type":"Feature","properties":{"resourceCoords":[1505.0,1968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9870074,40.4771261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0041","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1306.5,28.8 1577.2,27.2 1550.3,515.3 1559.5,515.2 1591.2,1014.0 1595.9,1014.0 1590.0,1504.7 1581.6,1504.6 1582.0,1980.9 1179.3,1981.2 605.2,1987.8 68.8,1985.7 68.9,1509.8 73.5,1020.5 68.8,644.7 71.8,268.6 70.7,33.1 1306.5,28.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1152.0,517.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98456890973613,40.47976569428052]}},{"type":"Feature","properties":{"resourceCoords":[601.0,1021.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98582225982805,40.478852607422326]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p42","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0042","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"163.7,1981.9 163.6,1508.3 171.9,1508.4 178.0,1020.6 173.3,1020.6 142.0,524.7 132.9,524.8 159.8,39.5 593.4,37.2 905.6,35.5 897.0,54.7 1017.3,103.0 1444.7,71.1 1443.5,517.5 1644.6,517.1 1649.0,577.4 1649.3,1014.1 1646.2,1507.9 1217.7,1509.7 1158.3,1510.0 490.5,1593.5 494.2,1744.5 500.0,1981.8 163.7,1981.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[484.0,1025.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98279560528692,40.478910200313386]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,56.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9805675838132,40.48067324233917]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p43","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0043","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"222.0,1473.0 226.7,1034.5 223.0,974.0 21.1,972.0 27.5,523.9 64.0,521.5 126.5,478.0 184.5,129.4 826.5,296.7 1108.2,306.5 1134.8,200.8 1250.1,174.3 1251.8,342.0 1594.2,361.6 1615.0,202.3 1627.1,201.0 1586.6,504.1 1569.0,962.6 1468.2,959.8 1467.8,1000.6 1580.3,1003.5 1591.4,1489.1 1570.2,1979.1 1053.7,1977.3 213.1,1968.7 222.0,1473.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[222.0,1473.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9800727,40.478978]}},{"type":"Feature","properties":{"resourceCoords":[223.0,974.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.980111,40.4798612]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0044","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.5,187.8 113.9,491.0 100.7,949.0 1.0,947.2 1.0,988.0 112.4,989.8 128.1,1474.7 111.5,1964.2 419.1,1962.3 722.7,1963.0 1310.9,1959.5 1544.8,1959.7 1615.6,1959.7 1628.2,1377.7 1613.0,1378.0 1606.0,1367.0 1608.0,1329.0 1629.3,1328.5 1636.8,982.5 1668.0,982.8 1668.0,852.6 1644.8,851.6 1577.6,499.9 1372.8,471.8 1377.7,281.6 1517.5,171.1 1215.0,94.8 1099.5,145.2 1094.1,358.1 1015.0,477.9 650.2,453.4 645.1,354.4 406.6,158.0 151.5,187.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0044/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[716.0,1483.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97551466848675,40.4790460507273]}},{"type":"Feature","properties":{"resourceCoords":[716.0,1965.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97548607499819,40.47819171606153]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0045","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1103.1,1981.7 1015.0,1977.0 909.4,1982.2 163.4,1985.0 102.3,1984.0 104.5,1087.4 95.3,1087.3 42.8,1087.0 47.0,628.7 55.2,80.2 55.5,46.4 384.9,50.0 1296.3,44.2 1565.3,46.0 1575.1,648.3 1567.4,648.4 1585.9,1087.4 1568.7,1087.6 1555.4,1980.0 1284.5,1981.4 1103.1,1981.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[65.0,1094.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00643333878843,40.474970455843746]}},{"type":"Feature","properties":{"resourceCoords":[65.0,1969.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00638165072878,40.47343479691809]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0046","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"828.6,1971.8 554.1,1976.3 114.7,1981.7 121.7,1088.1 138.9,1087.8 117.2,648.5 125.0,648.4 110.9,45.4 494.3,45.2 1025.0,45.3 1645.1,38.0 1639.5,171.9 1599.1,272.7 1592.7,314.8 1593.9,631.9 1597.7,808.4 1597.7,1075.4 1606.0,1544.5 1608.2,1958.8 828.6,1971.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[552.0,1083.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00197284516247,40.475072250789744]}},{"type":"Feature","properties":{"resourceCoords":[1019.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00093992287715,40.47687403156065]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p47","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0047","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.8,1561.4 148.3,1092.3 152.2,825.4 151.0,649.0 154.4,332.0 161.4,290.0 203.3,189.9 210.8,56.1 976.1,63.4 1153.6,56.6 1383.0,57.4 1557.9,58.2 1579.7,58.6 1594.6,1534.3 1563.2,1534.3 1563.0,1970.0 1161.1,1972.7 388.3,1973.8 145.9,1975.5 149.8,1561.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[151.0,649.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9995906,40.475897]}},{"type":"Feature","properties":{"resourceCoords":[1165.0,1533.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.997186,40.474406]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p48","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0048","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"235.7,26.6 298.0,27.0 318.0,25.8 388.5,25.1 644.4,30.6 1004.7,30.6 1070.3,31.2 1359.7,34.0 1446.1,34.7 1587.3,36.0 1532.8,133.7 1501.2,208.1 1477.3,294.9 1459.7,461.8 1460.2,1931.5 1396.2,1929.7 629.0,1930.0 215.4,1932.6 216.5,1497.2 247.8,1497.2 235.7,26.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[629.0,456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995401,40.4762781]}},{"type":"Feature","properties":{"resourceCoords":[629.0,1930.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995282,40.473693]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p49","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0049","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1490.8,1945.9 1431.3,1929.2 1303.0,1913.1 1234.0,1916.6 975.6,1977.1 868.3,1987.6 847.0,1988.0 846.8,1989.7 840.2,1990.3 840.0,1989.0 821.0,1989.0 820.5,1992.3 794.4,1994.8 771.0,1994.6 770.0,1988.0 753.0,1988.0 752.1,1994.3 335.6,1989.7 227.2,1977.6 73.0,1947.0 75.9,470.4 94.1,302.9 118.3,215.7 150.2,141.0 205.2,43.0 344.1,49.3 490.0,74.2 533.6,90.1 634.2,141.8 738.0,169.5 738.3,136.7 1623.5,126.1 1622.7,168.6 1623.4,335.3 1615.8,1027.6 1616.8,1744.4 1612.3,1947.0 1490.8,1945.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1223.0,169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9908791,40.4769201]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1947.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9933654,40.4737414]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p4 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.92"},{"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":"6592.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0004","type":"ImageService3","width":1648,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.4,1571.5 524.4,1639.9 524.8,1665.5 834.9,1692.8 834.9,1699.5 1111.3,1628.2 1111.4,1597.8 1482.6,1970.5 1509.6,1970.8 1591.4,1913.5 1593.8,911.0 1539.8,511.8 1563.2,109.4 1432.2,57.8 1087.5,77.5 681.6,27.0 584.9,29.9 491.4,90.8 375.1,109.0 146.9,87.3 148.6,58.5 68.1,141.9 65.5,211.8 94.7,211.3 96.7,371.4 59.5,372.1 44.6,768.5 69.8,768.3 54.6,802.0 60.1,1209.5 64.4,1583.7 85.8,1570.5 95.6,1585.6 95.4,1571.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,1427.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.980353,40.490887]}},{"type":"Feature","properties":{"resourceCoords":[835.0,759.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.980384,40.493215]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0005","type":"ImageService3","width":1672,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"377.5,97.8 480.7,133.1 480.7,120.6 731.2,86.7 731.4,110.8 925.4,125.2 925.3,91.2 1307.7,85.9 1311.3,396.0 1345.2,396.2 1409.0,595.2 1462.4,595.8 1477.0,916.8 1464.3,981.5 1431.6,1148.6 1405.8,1266.3 1390.0,1298.7 1385.0,1439.4 1375.9,1633.2 1374.3,1724.7 1377.7,1724.7 1358.2,1990.8 1346.3,1991.2 1344.4,1954.9 275.1,1916.1 124.2,1846.7 76.4,1520.5 89.3,1341.2 50.8,1217.8 103.8,710.9 86.5,519.3 125.2,501.3 116.7,138.0 133.2,96.4 229.5,72.5 377.4,73.7 377.5,97.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1122.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9977497149815,40.46739610260211]}},{"type":"Feature","properties":{"resourceCoords":[1317.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99696603211983,40.470571387772175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p50","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0050","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.7,84.2 677.0,91.7 1300.0,91.0 1599.8,93.8 1568.2,565.0 1574.4,565.1 1579.8,1027.8 1578.0,1027.8 1571.3,1891.0 1546.9,1891.3 1283.7,1895.5 1155.2,1901.0 669.0,1906.0 322.2,1912.0 34.5,1911.5 37.0,1711.6 29.4,1004.4 30.4,321.2 28.1,156.8 28.7,84.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1294.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9869621,40.4755102]}},{"type":"Feature","properties":{"resourceCoords":[669.0,1906.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9883574,40.4738831]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0051","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"68.3,1841.6 79.6,973.7 81.4,973.7 78.5,508.4 72.2,508.2 106.5,34.6 343.7,38.0 920.3,37.3 1664.0,44.5 1664.0,778.9 1664.0,785.0 1662.0,1114.7 1660.9,1389.5 1658.1,1518.0 1657.2,1627.0 1647.9,1814.2 1622.3,1814.5 1620.4,1861.8 1575.9,1861.2 1574.8,1815.2 1074.8,1821.0 885.2,1819.1 293.6,1839.6 68.3,1841.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[886.0,979.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98443409054947,40.47552000490693]}},{"type":"Feature","properties":{"resourceCoords":[1509.0,1837.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98292693139324,40.474046711163425]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p52","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0052","type":"ImageService3","width":1669,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1413.2,1926.0 262.7,1923.8 263.1,1894.2 261.6,1619.0 254.1,547.2 248.6,307.2 247.2,249.3 245.0,154.4 920.5,70.7 980.6,70.5 1171.6,69.8 1414.0,69.0 1411.6,684.4 1413.9,1534.1 1413.2,1909.8 1413.2,1926.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1414.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9800531,40.4781001]}},{"type":"Feature","properties":{"resourceCoords":[243.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9827588,40.4780501]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0053","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"892.1,52.5 1533.9,49.4 1561.7,667.1 1560.0,667.1 1554.5,1190.7 1551.8,1190.6 1563.4,1636.8 1593.0,1637.5 1550.1,1957.6 899.7,1931.0 900.3,1898.3 42.3,1987.7 42.7,1886.1 44.0,1576.0 72.0,1576.0 74.0,1526.0 44.2,1525.4 44.2,1511.5 44.0,664.3 47.9,50.9 892.1,52.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[868.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97815179414766,40.47811728881946]}},{"type":"Feature","properties":{"resourceCoords":[59.0,1167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9799582082794,40.47613310299104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0054","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"279.9,57.1 587.8,57.7 1184.3,54.1 1421.5,54.2 1642.7,54.3 1642.2,932.7 1639.9,1568.6 1622.0,1570.0 1620.0,1613.0 1639.7,1613.0 1639.4,1695.2 1622.5,1694.5 1447.2,1983.2 1422.2,1983.3 1390.8,1983.3 1391.6,1975.9 411.9,1951.1 419.6,1986.1 335.0,1984.0 333.3,1991.5 313.7,1990.8 313.0,1985.0 111.2,1982.8 154.0,1659.9 124.1,1659.3 111.8,1209.3 114.5,1209.3 119.2,681.2 121.0,681.2 92.1,58.3 279.9,57.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[724.0,1231.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97508935578684,40.476150918632456]}},{"type":"Feature","properties":{"resourceCoords":[1185.0,1679.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97400403088535,40.475388295179556]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0055__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p55 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"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":"5751.6"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0055__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0055","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"372.6,1425.7 985.9,1381.9 1610.8,1418.0 1614.8,1380.5 1562.2,491.1 1533.1,491.2 1593.2,63.3 1322.0,65.9 1141.8,67.0 1054.4,62.7 949.6,68.3 209.0,74.4 134.9,73.5 81.2,64.0 82.2,281.7 79.8,946.3 81.0,1390.9 271.2,1390.0 372.4,1395.1 372.6,1425.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0055__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[81.0,496.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0064304,40.472661]}},{"type":"Feature","properties":{"resourceCoords":[81.0,1390.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0063864,40.4710786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0056__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p56 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"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":"6692.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0056__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0056","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.7,501.1 186.2,1377.8 192.0,1327.1 823.7,1402.5 875.9,1743.1 813.3,1743.0 813.4,1750.2 813.7,1790.7 1017.8,1859.2 1017.6,1834.5 1511.6,1765.1 1507.7,1396.4 1500.2,924.5 1496.0,495.0 1511.6,494.9 1506.2,65.3 866.0,72.5 596.9,75.5 168.4,78.4 108.0,501.1 136.7,501.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0056__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1015.0,1369.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.000874,40.47121]}},{"type":"Feature","properties":{"resourceCoords":[595.0,501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.0019104,40.4727448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p57","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0057","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"411.5,79.2 652.4,78.2 1420.2,79.7 1425.0,510.0 1425.5,947.0 1421.5,1385.6 1422.5,1808.4 657.9,1813.5 657.5,1881.6 269.8,1849.8 270.5,1428.1 269.0,949.6 270.1,514.4 286.0,514.5 285.9,79.0 411.5,79.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[653.0,1391.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99883,40.471272]}},{"type":"Feature","properties":{"resourceCoords":[1425.0,510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.997114,40.472876]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p58","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0058","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"410.0,91.0 821.0,82.8 1583.4,72.2 1647.0,73.2 1645.0,507.5 1646.8,942.5 1658.0,1661.0 1601.0,1665.0 1600.0,1708.0 1656.0,1709.0 1656.0,1742.0 1657.3,1744.4 1657.6,1750.2 1656.0,1751.0 1656.0,1805.0 1659.7,1805.6 1659.8,1809.7 1659.9,1822.9 1657.0,1846.0 1660.0,1846.2 1660.1,1893.2 1660.3,1914.5 1253.6,1852.6 1253.8,1867.3 835.3,1862.7 835.0,1817.0 39.0,1826.5 31.6,1403.8 29.0,965.3 22.0,528.4 10.8,98.3 410.0,91.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[410.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9962354,40.473663]}},{"type":"Feature","properties":{"resourceCoords":[835.0,1817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995163,40.470632]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p59","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0059","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.2,125.5 326.4,135.3 783.0,130.9 963.1,109.5 1219.0,44.0 1287.6,39.0 1415.7,52.4 1475.2,67.8 1596.2,66.4 1616.9,66.2 1615.8,1086.9 1629.8,1086.8 1569.8,1901.4 1001.1,1868.5 1001.2,1852.9 85.4,1845.6 81.0,1744.3 24.7,1743.6 52.3,1721.0 60.0,1721.0 60.1,1714.6 82.9,1696.0 68.0,973.0 64.2,535.3 64.1,98.2 218.2,125.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1006.0,1417.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9911424,40.4714551]}},{"type":"Feature","properties":{"resourceCoords":[68.0,973.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9933228,40.4722067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0006","type":"ImageService3","width":1654,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"270.0,33.8 466.5,54.1 466.6,50.0 485.9,80.0 542.2,81.4 662.0,82.3 752.5,159.4 1098.8,157.5 1098.9,161.1 1099.4,201.6 1099.4,205.1 1102.3,457.4 1653.0,926.6 1505.7,801.1 1396.2,802.8 1310.9,1403.8 1337.5,1394.2 1345.5,1394.2 1321.2,1672.0 1316.5,1672.0 1292.0,1671.9 1295.0,1952.5 1295.2,1971.6 355.1,1982.6 354.0,1980.0 297.7,1982.2 297.8,1975.8 298.3,1249.7 240.8,1247.5 223.7,534.7 231.8,74.0 184.5,72.6 270.0,33.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[219.0,697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00729623855536,40.489928181830706]}},{"type":"Feature","properties":{"resourceCoords":[433.0,1666.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00617521417311,40.486498679572705]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0060__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p60 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"6692.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0060__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0060","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1582.8,61.3 1317.5,66.0 1188.0,71.8 698.0,77.9 348.5,84.7 79.2,84.8 68.8,1104.4 78.0,1104.4 82.7,1104.4 90.0,1016.4 265.0,1082.4 481.8,1018.9 802.9,1081.0 929.4,1237.9 915.5,1775.3 1107.5,1780.2 1264.7,1938.0 1588.4,1900.2 1591.0,1983.5 1599.8,1983.2 1604.3,1983.1 1593.1,1097.4 1594.0,1097.4 1590.7,61.2 1582.8,61.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0060__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1320.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98692189917007,40.473918272273494]}},{"type":"Feature","properties":{"resourceCoords":[53.0,106.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98984462511751,40.473804479615666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p61","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0061","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"375.6,1759.4 346.1,1114.9 239.0,1113.9 111.0,714.3 42.9,713.8 35.4,91.2 834.8,87.7 834.8,133.6 1254.9,141.4 1254.8,126.6 1662.8,191.8 1663.3,397.1 1664.0,520.3 1664.0,902.1 1664.0,1584.9 1661.5,1868.3 633.4,1886.9 350.1,1889.4 375.6,1759.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[500.0,1116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9958676,40.4688072]}},{"type":"Feature","properties":{"resourceCoords":[1257.0,1366.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9941016,40.4684064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p62 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"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":"6724.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062","type":"ImageService3","width":1681,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.9,386.8 63.9,509.9 84.0,1573.5 86.9,1857.2 969.0,1860.0 1158.2,1823.3 1117.4,1816.3 1212.2,782.0 1329.1,606.8 1347.0,346.2 1347.4,346.0 1347.4,344.5 1350.1,344.5 1516.8,248.3 1535.8,122.4 968.4,93.3 968.3,77.7 54.8,76.4 56.0,160.2 60.9,386.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[969.0,665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9911214,40.4696571]}},{"type":"Feature","properties":{"resourceCoords":[969.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9910934,40.467555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p62 [4]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4752.0"},{"label":"split_canvas_y","value":"4973.2"},{"label":"split_canvas_w","value":"1972.0"},{"label":"split_canvas_h","value":"3058.8"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062","type":"ImageService3","width":1681,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1681.0,2008.0 1681.0,1243.3 1248.5,1247.1 1188.0,1247.6 1188.0,2008.0 1681.0,2008.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0062__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1644.0,1299.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9920904,40.467549]}},{"type":"Feature","properties":{"resourceCoords":[1222.0,1930.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9930937,40.4664331]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0063__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p63 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"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":"6692.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0063__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0063","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1672.0,1895.8 1639.4,1897.2 1639.1,1237.6 1563.0,1104.8 1629.3,725.4 1599.6,608.6 1296.8,513.4 1295.0,513.4 1295.0,512.8 1267.0,504.0 1201.4,130.8 589.5,30.8 37.6,102.2 98.2,242.5 63.4,575.8 108.4,708.2 37.9,769.5 40.7,1902.5 676.0,1995.1 724.5,1995.3 1249.6,1968.7 1249.5,1962.1 1672.0,1946.2 1672.0,1941.6 1672.0,1895.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0063__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[658.0,1114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.01335743092109,40.47752937999356]}},{"type":"Feature","properties":{"resourceCoords":[658.0,1775.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.01334044173024,40.476380294993454]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0065__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p65 [5]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4402.0"},{"label":"split_canvas_y","value":"5092.0"},{"label":"split_canvas_w","value":"2290.0"},{"label":"split_canvas_h","value":"2940.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0065__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0065","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1641.3,1898.4 1631.7,1638.1 1354.7,1639.6 1354.5,1638.8 1352.2,1638.9 1352.0,1638.9 1352.2,1621.3 1315.0,1348.0 1239.1,1300.4 1154.1,1313.8 1136.7,1405.2 1126.5,1864.0 1185.7,1972.4 1503.3,1992.4 1526.1,1990.0 1563.7,1994.2 1641.3,1898.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0065__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1100.5,1273.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.99839702880452,40.50179312419981]}},{"type":"Feature","properties":{"resourceCoords":[1673.0,1273.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.99707744693279,40.501815627092434]}},{"type":"Feature","properties":{"resourceCoords":[1673.0,2008.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.99703975219329,40.50051946481939]}},{"type":"Feature","properties":{"resourceCoords":[1100.5,2008.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.99835933406501,40.500496961926764]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p66","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0066","type":"ImageService3","width":1681,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1619.3,1866.5 1615.3,835.2 1551.6,834.5 1528.5,331.0 1508.5,330.8 1476.2,330.6 1472.8,99.8 1474.2,5.2 1031.8,240.8 1031.8,327.4 689.4,330.4 390.3,327.8 293.5,339.3 191.4,376.6 40.1,465.9 1.0,483.4 1.0,653.5 4.5,656.8 32.2,1824.8 1034.7,1840.2 1034.6,1815.7 1619.2,1901.8 1619.3,1866.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1030.0,1347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.987203,40.5094369]}},{"type":"Feature","properties":{"resourceCoords":[47.0,1347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9895059,40.5093919]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0067/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p67","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0067/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0067","type":"ImageService3","width":1673,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1616.2,1915.7 1108.8,1939.6 1108.7,1959.7 1108.5,1992.2 1061.0,1990.0 952.0,1992.0 941.0,1995.0 900.9,1995.6 900.0,1992.0 877.0,1992.0 876.0,1996.0 824.6,1995.8 436.9,1988.2 95.4,1981.0 94.0,1977.7 66.0,1909.2 73.0,1909.0 72.0,1867.0 49.0,1867.5 47.4,1863.7 51.2,1471.5 73.8,1471.4 73.2,1397.9 76.7,1299.1 76.1,1003.7 82.0,527.3 79.0,320.5 78.5,25.9 91.6,25.4 100.6,25.1 99.5,49.5 1615.1,29.9 1616.0,1242.1 1618.4,1566.6 1616.8,1851.5 1616.2,1915.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0067/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[591.0,371.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9824786,40.5122529]}},{"type":"Feature","properties":{"resourceCoords":[79.0,371.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9825078,40.513158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0068","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.8,1863.0 55.8,1580.3 51.7,1258.3 44.2,55.3 1365.5,30.9 1606.7,88.5 1609.1,361.0 1622.3,360.3 1626.0,395.6 1597.0,1854.5 1173.4,1851.8 1086.9,1852.2 55.8,1863.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1091.0,386.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98235516079477,40.50858097841979]}},{"type":"Feature","properties":{"resourceCoords":[566.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98585149023769,40.509466076046884]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p69 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"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":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"463.3,81.9 460.9,248.8 421.1,259.9 421.1,261.2 421.0,276.5 418.3,276.5 360.9,276.8 339.5,319.6 320.9,612.0 244.8,636.9 190.0,624.2 180.2,608.3 206.7,595.9 67.8,598.5 94.8,623.5 34.0,878.7 25.6,1868.5 81.2,1973.5 836.9,1985.2 836.6,1990.9 846.0,1990.0 907.0,1990.0 925.0,1994.0 953.3,1969.8 1005.6,1915.0 1478.4,1846.5 1478.4,1821.4 1649.4,1826.9 1636.6,1381.3 1646.0,1373.9 1630.0,135.1 1627.7,132.8 1628.6,44.7 1627.0,45.4 1600.5,55.5 1529.6,57.9 1500.5,67.2 1413.1,64.1 1054.3,54.3 823.2,44.0 823.0,51.4 463.3,81.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[46.0,1549.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99651189633514,40.505606386582784]}},{"type":"Feature","properties":{"resourceCoords":[46.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99655457863534,40.50649540874874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p69 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1106.0"},{"label":"split_canvas_w","value":"1188.0"},{"label":"split_canvas_h","value":"1274.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"7.0,332.8 4.0,578.2 288.8,588.3 279.1,288.6 36.7,279.4 36.0,285.5 15.2,285.5 33.9,308.9 7.0,332.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0069__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[30.0,577.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98105536135111,40.50763399578837]}},{"type":"Feature","properties":{"resourceCoords":[280.0,305.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97989434852425,40.50855816824941]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p7","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0007","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"895.9,1759.5 192.7,1760.0 240.5,1205.4 224.3,1205.3 171.2,1224.4 340.1,24.2 558.6,20.5 855.0,272.2 892.7,272.2 905.9,272.2 936.2,272.3 1544.8,275.1 1546.4,947.7 1555.2,1759.0 895.9,1759.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[941.0,1208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.000295,40.487578]}},{"type":"Feature","properties":{"resourceCoords":[558.0,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.001228,40.488636]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0070__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p70 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"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":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0070__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0070","type":"ImageService3","width":1665,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.5,450.5 58.7,764.3 136.9,1016.6 74.4,1533.3 134.7,1845.0 266.4,1926.7 732.7,1941.7 918.9,1830.1 1031.6,1835.5 986.6,1675.2 1071.3,1325.3 1267.0,1327.2 1375.5,1264.7 1398.8,1315.3 1282.3,167.3 1251.3,164.9 1037.1,150.1 966.0,144.7 673.9,122.7 400.9,103.5 168.8,87.3 169.0,308.5 1.0,384.1 1.0,460.2 111.5,450.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0070__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1265.0,187.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97836397567394,40.47225301419683]}},{"type":"Feature","properties":{"resourceCoords":[175.0,1841.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98074246891575,40.469196555591786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0071__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p71 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.50"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2038.0"},{"label":"split_canvas_w","value":"6592.0"},{"label":"split_canvas_h","value":"5994.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0071__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0071","type":"ImageService3","width":1648,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"72.5,1726.2 117.5,1883.0 257.6,1943.3 1495.2,1809.4 1544.8,1010.2 1402.4,976.6 1052.5,947.0 1050.0,890.6 304.5,564.5 134.5,523.6 133.3,523.3 72.5,1726.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0071__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[640.0,642.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.977151,40.472262]}},{"type":"Feature","properties":{"resourceCoords":[65.0,1892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.977863,40.469962]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0072","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.1,669.3 86.2,177.7 101.9,177.4 101.0,112.0 1049.5,130.8 1447.8,67.3 1566.5,75.4 1608.3,156.0 1665.0,156.2 1665.0,157.1 1618.9,157.9 1589.2,644.6 1598.5,644.4 1620.8,913.9 1632.3,914.0 1635.3,1202.1 1637.3,1202.2 1625.9,1489.5 1622.0,1489.5 1649.3,1859.3 1613.0,1859.2 1563.0,1939.3 579.3,1935.5 372.8,1881.1 97.2,1876.2 40.0,1807.0 55.8,1627.1 83.8,1626.5 167.6,1481.4 176.0,1481.6 169.3,1103.4 160.2,667.7 86.1,669.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1314.0,919.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.96769626012423,40.477378647239306]}},{"type":"Feature","properties":{"resourceCoords":[638.0,1490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97081812781033,40.47535675064641]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p73","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0073","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"341.1,1945.8 340.9,1950.6 307.7,1964.1 360.0,1204.0 378.6,862.2 403.6,506.6 122.3,488.2 141.2,299.4 147.7,189.3 154.9,89.4 1315.8,160.7 1310.5,247.1 1571.0,234.9 1584.7,626.2 1594.5,627.2 1577.0,1644.2 1576.7,1644.2 1276.5,1610.8 1194.2,1602.1 996.0,1581.0 757.5,1555.8 749.5,1783.7 572.7,1855.9 569.9,1933.9 341.1,1945.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1289.0,565.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97993443030035,40.47413154891132]}},{"type":"Feature","properties":{"resourceCoords":[1289.0,1612.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97973426569685,40.472316854526596]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0074/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0074","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1319.8,1962.5 1310.6,1908.9 560.0,1687.8 392.8,1669.3 360.6,1665.9 146.1,1645.5 75.2,1638.3 82.5,647.7 73.0,646.8 55.9,265.9 652.9,232.1 650.6,264.3 1402.7,330.6 1488.3,332.6 1592.5,338.7 1594.0,347.5 1644.5,649.2 1642.2,1701.9 1564.1,1938.5 1319.8,1962.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0074/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[915.0,1705.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97709407617495,40.4722949879033]}},{"type":"Feature","properties":{"resourceCoords":[915.0,722.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.97726452238913,40.47404568101725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0075/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p75","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0075/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0075","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1077.2,1955.7 1077.2,1954.8 31.7,1942.6 31.4,1697.8 15.1,1099.2 18.5,907.5 16.5,401.8 63.0,401.0 64.0,356.0 16.2,353.8 16.0,327.8 22.3,46.3 378.4,56.0 720.3,59.9 1481.4,79.5 1466.4,46.9 1524.0,47.6 1523.9,80.2 1635.2,82.4 1632.7,1679.5 1608.8,1679.2 1578.2,1956.8 1077.2,1955.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0075/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1618.0,914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98379811849885,40.4712669164665]}},{"type":"Feature","properties":{"resourceCoords":[1072.0,1682.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98560505782787,40.472162081400676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0076/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p76","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0076/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0076","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"455.1,1950.6 1610.7,1927.5 1643.3,171.2 1608.0,77.0 1500.9,42.1 1.0,32.4 1.0,65.1 111.2,66.7 116.0,1661.0 92.2,1660.8 62.9,1938.1 454.9,1937.2 455.1,1950.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0076/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[701.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9837048,40.4702169]}},{"type":"Feature","properties":{"resourceCoords":[116.0,1661.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.985547,40.471187]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p77","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0077","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"735.8,1966.4 1165.2,1986.8 1604.7,1953.3 1640.9,1003.1 1575.8,65.3 660.4,45.7 80.4,102.1 64.8,409.0 65.0,409.0 64.0,451.0 62.7,451.0 42.6,846.5 81.6,1232.2 36.0,1588.0 60.5,1938.2 1.0,1937.3 1.0,1948.8 37.4,1948.8 87.7,1950.8 237.9,1951.3 480.3,1955.6 585.5,1954.6 735.4,1955.2 735.8,1966.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0077/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1087.0,919.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98024029646344,40.516810042122636]}},{"type":"Feature","properties":{"resourceCoords":[824.0,1435.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98137161287706,40.51499013903452]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0078/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p78","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0078/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0078","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"27.5,1791.0 22.7,380.4 115.3,138.4 662.8,42.4 1180.9,129.3 1429.0,45.9 1589.2,66.8 1587.6,9.3 1611.5,9.6 1609.8,369.2 1665.0,426.5 1665.0,475.0 1657.0,475.0 1651.0,483.0 1650.0,506.0 1665.0,511.0 1665.0,523.0 1655.0,524.0 1653.0,553.0 1665.0,554.0 1665.0,1984.0 1613.0,1983.0 1602.0,1984.0 1601.0,1988.0 1599.2,1988.0 1599.5,1959.6 856.8,1955.1 423.4,1949.1 44.5,1948.2 44.0,1816.7 19.3,1790.1 27.5,1791.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0078/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1600.0,351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99268993791988,40.49812103353401]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,1930.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99256339750345,40.4953420843046]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0079","type":"ImageService3","width":1657,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"25.7,1004.7 60.4,231.6 61.1,214.9 129.8,213.3 147.5,217.0 153.4,216.4 174.8,193.1 225.3,139.0 686.1,67.0 685.9,42.5 1341.4,56.3 1341.4,66.3 1606.8,67.1 1635.2,315.2 1623.0,1857.1 1640.5,1931.0 1653.3,1930.8 1653.4,1963.4 771.7,1963.3 742.1,1987.3 121.0,1988.0 88.7,1987.7 67.1,1965.8 66.3,1784.3 54.1,1779.6 25.7,1004.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0079/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[70.0,1347.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99272481991774,40.50024927916944]}},{"type":"Feature","properties":{"resourceCoords":[1092.0,364.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9881488477873,40.50377085319608]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p8","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0008","type":"ImageService3","width":1658,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"632.4,265.0 1047.3,263.1 1457.0,264.0 1453.3,598.5 1453.6,940.4 1470.0,1767.9 1054.2,1767.0 643.6,1772.3 189.7,1771.0 178.1,946.6 174.2,263.0 632.4,265.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[633.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.997859,40.488696]}},{"type":"Feature","properties":{"resourceCoords":[1457.0,264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.995975,40.489315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p80","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0080","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.6,131.1 340.3,121.8 340.3,118.5 550.0,113.7 550.4,88.7 730.5,83.5 725.6,94.0 1306.4,90.2 1306.3,98.1 1529.7,96.6 1527.6,229.3 1525.5,458.9 1551.8,459.1 1556.3,459.1 1555.1,908.2 1548.3,908.1 1521.2,903.2 1521.2,1013.0 1518.4,1348.4 1517.9,1572.8 1613.9,1572.8 1665.0,1575.6 1665.0,1579.6 1665.0,1591.1 1600.3,1595.4 1615.7,1896.1 1560.0,1964.0 843.2,1980.0 62.4,1944.4 27.5,1658.5 107.7,1387.2 138.3,1099.2 81.2,1070.8 39.2,908.0 76.0,828.1 82.8,566.5 32.4,280.2 55.6,130.7 79.6,131.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[519.0,515.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.01111340947494,40.47469376343341]}},{"type":"Feature","properties":{"resourceCoords":[981.0,1569.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.00885972606808,40.47104314089886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0081__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p81 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"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":"6628.0"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0081__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0081","type":"ImageService3","width":1657,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1103.2,1945.9 1355.2,1933.8 1559.9,1878.2 1585.1,1348.4 1622.5,1279.4 1605.1,1216.5 1656.0,965.9 1656.0,965.0 1643.9,983.6 1581.3,872.4 1547.3,602.0 1446.0,598.7 1405.5,527.1 1432.2,305.7 925.4,300.7 895.3,263.1 889.5,263.1 889.5,255.9 858.0,216.5 847.4,64.0 809.3,35.5 168.6,69.0 88.2,140.5 44.3,408.2 79.9,510.8 60.5,610.3 74.9,706.9 77.0,706.9 65.3,1155.2 72.8,1677.7 73.5,1821.7 243.8,1855.7 363.8,1882.5 396.8,1898.8 540.3,1904.4 738.0,1914.4 831.3,1916.4 831.4,1912.9 1102.8,1933.8 1103.2,1945.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0081__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[608.0,1370.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99402853848595,40.46564273006638]}},{"type":"Feature","properties":{"resourceCoords":[393.0,939.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9921012881415,40.46643545942097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p82 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2994.4"},{"label":"split_canvas_w","value":"6664.0"},{"label":"split_canvas_h","value":"5037.6"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"538.4,1864.4 538.4,1874.3 820.5,1872.0 954.5,1872.4 1231.5,1931.7 1560.7,1887.7 1611.2,1467.7 1591.8,1091.6 1573.8,1093.5 829.0,1078.8 830.4,862.7 830.3,836.5 531.6,794.6 531.8,807.1 20.1,802.7 38.8,1415.4 29.7,1422.8 49.8,1857.3 538.4,1864.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[533.0,1871.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9870640280878,40.50484312662138]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,1873.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98229855226887,40.50490479877153]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p82 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"17"},{"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":"6664.0"},{"label":"split_canvas_h","value":"4038.4"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"844.5,894.6 870.2,900.7 869.5,928.6 1181.3,927.2 1489.3,926.6 1487.5,961.3 1569.1,879.3 1590.5,588.0 1547.8,135.1 1467.9,86.7 1190.8,90.8 1191.0,123.4 309.5,123.7 254.4,168.3 1.0,168.4 1.0,748.3 324.8,748.3 841.7,748.3 844.3,882.8 844.5,894.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0082__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[875.0,441.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.986799,40.497099]}},{"type":"Feature","properties":{"resourceCoords":[408.0,441.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.988943,40.497058]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0083/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p83","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0083/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0083","type":"ImageService3","width":1657,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"102.2,1944.9 143.8,1813.1 148.0,1665.9 145.7,1408.8 147.1,1323.4 145.0,1155.0 132.1,1154.9 114.2,766.5 125.0,766.5 58.7,488.2 43.1,170.9 99.1,90.5 406.8,42.4 561.7,61.0 993.5,19.1 992.2,16.2 1166.0,19.0 1177.5,18.2 1340.9,21.5 1463.0,247.6 1507.4,247.3 1509.9,422.8 1509.5,576.2 1515.7,625.8 1535.1,678.0 1581.3,755.3 1591.3,777.3 1601.7,803.1 1605.2,872.7 1614.8,901.0 1613.2,986.8 1609.4,1338.7 1603.0,1565.5 1610.3,1565.6 1646.0,1917.8 1631.1,1917.8 1603.1,1956.0 1494.1,1973.2 1237.7,1979.8 170.8,1946.8 170.5,1947.7 102.2,1944.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0083/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[726.0,1155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99148,40.5139052]}},{"type":"Feature","properties":{"resourceCoords":[145.0,1155.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.991533,40.515924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p84 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2934.4"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.8,901.5 95.2,1220.7 94.8,1486.7 95.9,1750.5 263.9,1748.2 425.9,1743.3 462.3,1743.0 566.6,1743.0 685.9,1737.8 686.1,1366.0 685.6,961.1 701.1,927.9 676.1,927.8 695.6,534.1 732.6,533.9 732.6,374.9 703.5,375.0 708.7,271.0 402.3,272.5 92.0,274.8 92.6,247.0 43.5,235.4 92.8,901.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[93.0,269.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.98676415375182,40.49541862597866]}},{"type":"Feature","properties":{"resourceCoords":[688.6,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9838643425143,40.49031321317448]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p84 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2934.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3729.6"},{"label":"split_canvas_h","value":"8032.0"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"881.3,1842.8 986.1,1842.8 1167.8,1899.4 1568.8,1876.5 1610.0,1087.7 1537.1,485.7 1555.9,135.1 1087.4,101.2 1015.1,147.1 888.7,147.2 842.9,149.1 815.6,633.8 824.9,633.6 848.3,901.8 859.9,901.8 864.2,1188.7 866.1,1188.7 856.2,1474.8 852.3,1474.8 881.3,1842.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0084__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1382.2,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.96379302352763,40.47388645759093]}},{"type":"Feature","properties":{"resourceCoords":[1087.4,629.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9651606481552,40.47836568314368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0085","type":"ImageService3","width":1656,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.7,1937.8 46.2,1858.9 65.2,1519.2 32.8,838.4 79.8,100.5 178.1,71.3 646.5,93.1 995.4,38.0 1498.4,87.8 1603.4,840.6 1557.3,1351.7 1574.5,1829.0 1609.0,1857.1 1629.8,1856.1 1349.6,1922.6 1349.6,1911.7 958.5,1929.1 958.4,1942.1 788.8,1944.0 702.8,1942.4 444.0,1944.5 295.8,1940.0 163.2,1897.9 160.3,1966.7 79.7,1937.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[958.0,1001.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99162593649979,40.51917159283239]}},{"type":"Feature","properties":{"resourceCoords":[191.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.99515722331364,40.52087844487447]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bloomington, Illinois | 1950 | sanborn01737_006 p9","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T09:37:43Z","modified":"2026-10-18T09:37:43Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0009","type":"ImageService3","width":1666,"height":2008},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"117.0,911.0 116.4,574.9 119.6,246.1 519.0,241.8 933.4,242.5 933.6,340.1 1115.9,339.2 1245.4,345.8 1551.2,351.7 1552.8,397.1 1562.7,1715.8 1520.7,1715.5 948.2,1712.6 304.9,1720.7 134.0,1724.4 117.0,911.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104bm:g017371950:01737_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[521.0,911.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9950011,40.488143]}},{"type":"Feature","properties":{"resourceCoords":[117.0,911.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.9959491,40.4881282]}}]}}]}