{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02371_019.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Indianapolis, Indiana | 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":"91"},{"label":"placed","value":"81"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef 53, georef-snap 28"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 22 panels"},{"label":"unplaced pages","value":"p502__1 (tier 1, 39.78504,-86.17959 +/-100m); p524__2 (tier 1, 39.80662,-86.18647 +/-100m); p524__3 (tier 2, 39.80363,-86.18554 +/-1033m); p524__4 (tier 1, 39.80752,-86.18736 +/-100m); p525__1 (tier 1, 39.80573,-86.18559 +/-121m); p548__2 (tier 1, 39.80351,-86.14653 +/-105m); p548__3 (tier 1, 39.80487,-86.14542 +/-141m); p548__4 (tier 1, 39.80380,-86.14602 +/-100m); p576__2 (tier 2, 39.81456,-86.17760 +/-1126m); p577__1 (tier 1, 39.78970,-86.18798 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0501/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p501","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0501/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0501","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1085.9,66.9 1189.4,64.0 1200.9,1.9 1631.4,67.9 1588.4,117.5 1654.7,923.1 1588.1,1314.6 1613.0,1899.0 1470.2,1933.8 1083.9,1894.5 48.9,1897.5 41.0,1400.4 44.6,336.3 44.0,69.9 1085.9,66.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0501/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[568.0,716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.181388,39.78998]}},{"type":"Feature","properties":{"resourceCoords":[568.0,1896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18137,39.787746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0502__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p502 [2]","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":"6672.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0502__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0502","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.8,1001.9 44.4,1003.6 65.7,1176.4 433.7,1156.6 600.8,1199.7 631.7,1200.2 631.8,1207.7 643.5,1210.7 738.9,1519.2 758.8,1864.6 1539.5,1892.9 1592.6,1810.7 1614.0,955.2 1545.0,129.0 1138.1,87.1 47.8,89.0 46.3,298.3 30.6,505.1 140.2,634.0 38.8,1001.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0502__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1132.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1800829761804,39.78461895959758]}},{"type":"Feature","properties":{"resourceCoords":[1132.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18011324219829,39.787756928584365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0503/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p503","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0503/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0503","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1573.7,1872.8 1065.3,1859.5 1065.2,1863.3 571.3,1856.9 69.2,1872.0 68.5,1932.7 49.4,1932.8 43.5,1932.8 28.3,1158.6 79.8,352.5 61.7,222.1 77.1,221.1 78.0,97.0 827.0,99.7 1578.3,108.0 1574.1,1165.2 1580.9,1228.3 1579.7,1335.6 1573.7,1872.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0503/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[838.0,1196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.189236,39.7954136]}},{"type":"Feature","properties":{"resourceCoords":[78.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.191085,39.797391]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0504/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p504","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0504/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0504","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.8,194.4 55.8,133.5 559.7,112.4 1055.6,113.2 1055.5,109.3 1566.2,116.7 1566.3,703.9 1566.3,1795.2 1054.5,1799.7 78.7,1804.3 80.6,1789.1 30.6,194.8 55.8,194.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0504/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[559.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1898326,39.7930798]}},{"type":"Feature","properties":{"resourceCoords":[559.0,1802.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1898166,39.791134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0505/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p505","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0505/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0505","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"36.8,1531.7 37.4,1423.2 30.1,1359.5 28.2,290.3 28.4,62.7 780.9,63.7 1043.3,64.0 1548.7,64.6 1544.0,1395.0 1584.9,1395.1 1603.9,1888.1 1050.4,1903.5 1050.4,1907.4 547.9,1901.2 547.8,1912.8 34.9,1880.1 36.8,1531.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0505/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[548.0,1395.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1862765,39.7954411]}},{"type":"Feature","properties":{"resourceCoords":[1544.0,1395.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.183941,39.795463]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0506/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p506","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0506/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0506","type":"ImageService3","width":1668,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"16.3,1898.8 21.8,819.8 25.4,47.8 528.8,79.5 528.9,68.0 1022.1,73.8 1022.1,70.0 1598.0,53.5 1608.4,282.2 1603.7,282.3 1599.8,841.8 1605.8,841.8 1608.5,841.8 1600.5,1355.7 1607.5,1355.7 1605.2,1901.6 1193.9,1900.6 16.3,1898.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0506/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1016.0,1368.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18506326698817,39.79215322420487]}},{"type":"Feature","properties":{"resourceCoords":[48.0,1891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18736146895104,39.79117298778613]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0507/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p507","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0507/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0507","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.1,1351.2 28.6,1351.0 35.3,37.0 285.0,38.0 534.0,38.9 534.0,54.0 1675.0,74.5 1675.0,114.0 1628.7,120.0 1649.9,1948.0 1621.8,1948.0 1619.0,1948.0 1619.7,1908.8 862.6,1876.3 863.9,1835.9 382.2,1865.0 382.2,1830.4 87.1,1838.2 69.1,1351.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0507/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[538.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1827315477887,39.79545934580985]}},{"type":"Feature","properties":{"resourceCoords":[1612.0,1360.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18018185093395,39.79548621605679]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0508/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p508","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0508/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0508","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.5,831.7 60.2,264.7 65.0,264.6 53.1,32.9 254.0,26.0 299.0,26.0 299.1,24.4 317.3,23.8 317.6,58.7 802.4,25.5 801.5,66.2 1564.0,92.8 1563.7,132.3 1594.8,132.1 1627.9,1821.6 1683.0,1830.0 1683.0,1835.5 1682.9,1836.0 1672.0,1837.0 1673.0,1870.0 1676.4,1871.3 1675.8,1874.7 1672.0,1875.0 1672.0,1895.0 1563.8,1898.1 475.0,1901.8 78.8,1905.5 71.0,1905.6 70.3,1352.4 63.2,1352.4 68.3,831.6 65.5,831.7 59.5,831.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0508/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[314.0,830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.183083,39.793137]}},{"type":"Feature","properties":{"resourceCoords":[314.0,1350.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.183076,39.792195]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0509/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p509","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"23"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0509/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0509","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"65.3,132.3 90.8,142.7 90.8,148.3 1577.0,154.5 1572.2,727.5 1573.3,1094.7 1568.0,1596.3 1566.7,1796.3 1566.4,1821.6 842.0,1807.8 842.0,1817.3 82.3,1770.0 82.0,1732.8 42.1,1732.8 65.3,132.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0509/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[845.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1893179,39.8014558]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1911415,39.8014312]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0510/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p510","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0510/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0510","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"86.0,87.0 86.5,124.2 848.8,168.2 848.8,158.6 1575.5,169.0 1575.5,172.0 1576.5,986.5 1571.7,1275.7 1570.8,1604.8 1570.5,1828.2 824.7,1823.6 81.2,1824.8 81.0,1948.0 65.5,1948.0 30.3,1702.8 46.1,87.1 86.0,87.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0510/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[92.0,1260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1910766437102,39.79842790139223]}},{"type":"Feature","properties":{"resourceCoords":[1585.0,107.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1875452359965,39.80057950235805]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0511/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p511","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0511/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0511","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"40.6,1845.3 44.3,1523.7 51.8,1228.0 58.2,395.2 58.6,366.2 60.9,161.2 952.9,169.7 1439.0,175.8 1609.0,176.7 1588.7,331.3 1574.3,993.8 1574.8,1026.7 1616.3,1027.0 1594.0,1876.9 1566.0,1876.5 1058.9,1871.1 1019.4,1870.7 795.5,1868.2 40.4,1860.1 40.6,1845.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0511/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1072.0,161.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18520928194977,39.80092004022401]}},{"type":"Feature","properties":{"resourceCoords":[566.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1863051953592,39.797854250769845]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0512/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p512","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0512/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0512","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"626.0,1875.2 626.0,1860.0 375.3,1860.0 151.8,1860.0 163.8,1017.8 122.8,1018.0 121.9,985.4 128.3,328.9 146.7,175.5 187.5,175.2 397.9,172.8 849.9,175.0 1423.6,171.8 1489.9,169.5 1491.6,328.4 1505.9,328.5 1488.0,1013.7 1547.0,1014.2 1550.2,1888.2 626.0,1875.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0512/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[626.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.182784,39.797869]}},{"type":"Feature","properties":{"resourceCoords":[124.0,1860.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.183968,39.79786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0513/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p513","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.40"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0513/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0513","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"120.8,951.5 59.1,950.8 80.9,234.6 66.0,234.4 65.0,68.3 275.5,67.7 316.5,69.4 389.7,77.6 571.5,121.5 1278.8,74.4 1278.4,125.0 1453.5,86.8 1586.6,78.0 1675.0,81.1 1675.0,141.8 1584.6,122.4 1643.9,878.1 1613.7,1904.9 1177.8,1906.5 961.0,1833.3 355.8,1911.0 354.7,1911.2 354.8,1869.5 120.2,1865.2 120.8,951.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0513/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[507.0,956.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.17976,39.79942]}},{"type":"Feature","properties":{"resourceCoords":[507.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1797874,39.8008969]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p514 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.86"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3684.0"},{"label":"split_canvas_w","value":"6736.0"},{"label":"split_canvas_h","value":"4112.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.1,988.1 78.5,1701.1 107.6,1780.0 230.7,1822.5 237.4,1890.0 1551.0,1893.3 1602.2,1658.1 1568.4,1335.9 1598.6,973.2 1638.3,971.5 1641.4,964.4 1511.0,961.0 1255.7,960.7 1255.7,967.0 1001.0,961.6 1001.0,966.2 747.0,958.0 747.0,959.2 333.6,957.6 310.2,962.7 312.8,976.4 315.3,990.1 64.1,988.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1255.0,1427.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.165528,39.799377]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,961.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.164351,39.801067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p514 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.78"},{"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":"6736.0"},{"label":"split_canvas_h","value":"3684.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1425.0,920.0 1609.2,830.4 1580.3,80.7 1185.5,42.4 1053.3,78.6 602.0,43.5 221.6,54.4 100.0,158.4 64.1,342.6 74.0,808.8 114.0,843.2 114.2,861.9 114.2,870.1 650.1,846.0 642.8,830.8 1001.3,831.8 1007.7,859.0 1015.9,837.9 1036.3,814.4 1062.1,801.7 1289.5,818.4 1290.7,879.8 1298.2,920.0 1425.0,920.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0514__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1286.0,898.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18340994535842,39.8194543881382]}},{"type":"Feature","properties":{"resourceCoords":[886.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18529680724536,39.820900329330804]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0515/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p515","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0515/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0515","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1580.1,1847.8 1374.2,1849.5 900.2,1850.0 30.4,1853.4 31.0,1351.8 26.5,984.5 25.9,411.6 27.6,111.0 27.7,94.5 1432.5,105.5 1432.5,104.6 1432.4,80.9 1608.0,83.9 1606.1,352.7 1614.2,854.5 1610.9,854.6 1606.2,1346.5 1617.3,1346.3 1612.2,1847.4 1580.1,1847.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0515/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1023.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1851927,39.8009016]}},{"type":"Feature","properties":{"resourceCoords":[1023.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1852123,39.8027318]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0516/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p516","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0516/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0516","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1531.9,1852.5 1332.2,1853.0 1266.5,1854.9 697.5,1855.2 249.3,1850.9 73.0,1852.0 81.5,1347.2 70.2,1347.2 78.3,851.7 81.6,851.7 76.8,346.0 80.5,75.1 375.2,82.1 347.6,48.3 1654.8,68.5 1654.7,91.7 1654.0,315.8 1649.2,841.5 1585.5,842.1 1553.2,1853.3 1531.9,1852.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0516/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[454.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18289217910646,39.801839343364605]}},{"type":"Feature","properties":{"resourceCoords":[1640.0,334.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18010742816412,39.80373158477303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0517/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p517","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0517/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0517","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"367.2,1876.0 192.7,1835.9 122.5,1828.8 104.7,1828.3 125.1,807.6 189.2,806.2 187.8,275.8 185.8,55.5 1038.1,70.5 1038.1,62.6 1572.1,66.5 1576.2,300.5 1570.4,300.5 1568.6,804.1 1570.9,804.1 1581.5,1308.0 1588.6,1308.0 1584.7,1828.6 1634.1,1829.6 1642.4,1836.7 1597.5,1918.5 1424.5,1883.4 1422.9,1825.2 1338.3,1823.2 1211.0,1833.0 1043.8,1871.5 1043.7,1823.1 367.2,1876.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0517/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1042.0,1306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1780542,39.8019037]}},{"type":"Feature","properties":{"resourceCoords":[188.0,298.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.180074,39.803725]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0518/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p518","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0518/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0518","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1436.1,1895.9 1346.6,1843.5 158.6,1841.3 109.2,1840.3 112.7,1318.5 105.6,1318.5 94.7,813.5 92.3,813.5 93.8,308.6 99.6,308.6 95.3,74.2 559.8,77.3 559.8,65.8 1577.9,60.2 1575.8,286.4 1579.2,813.4 1540.0,813.4 1532.0,1832.2 1456.8,1834.0 1456.5,1873.2 1494.4,1873.2 1436.1,1895.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0518/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1536.0,1321.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1734181,39.8019038]}},{"type":"Feature","properties":{"resourceCoords":[1576.0,309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1733291,39.8037325]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0519/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p519","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0519/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0519","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.2,363.9 112.6,883.3 74.0,883.6 74.0,1888.0 1.0,1890.3 1.0,1929.0 37.4,1928.6 148.9,1884.3 1032.3,1908.6 1032.7,1919.8 1526.8,1915.3 1521.2,1888.3 1515.7,1861.6 1458.1,1591.2 1416.0,1369.5 1314.2,873.0 1468.7,869.6 1426.2,81.3 1327.4,82.5 1063.1,85.0 1079.6,128.7 105.5,122.7 105.5,129.0 105.2,363.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0519/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[74.0,1384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1734181,39.8019038]}},{"type":"Feature","properties":{"resourceCoords":[74.0,1888.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1734251,39.80098]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0520/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p520","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0520/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0520","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"140.3,1606.9 99.8,1381.5 1.4,876.4 158.3,874.6 123.1,73.9 544.9,73.1 817.2,75.7 1580.0,74.4 1575.9,872.5 1575.3,1833.5 1575.2,1879.4 1068.0,1866.5 1068.0,1869.0 242.7,1871.6 196.1,1882.0 140.3,1606.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0520/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1068.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.167936,39.801043]}},{"type":"Feature","properties":{"resourceCoords":[569.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.169126,39.804282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0521/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p521","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0521/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0521","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1304.3,1893.8 1310.3,1879.6 1051.4,1875.3 544.7,1879.2 544.8,1891.8 39.4,1885.6 39.4,1849.1 37.9,893.9 40.3,100.6 60.0,100.6 544.8,101.5 1016.0,99.4 1652.3,99.7 1652.0,590.1 1633.9,883.8 1607.0,1230.9 1608.8,1335.0 1637.4,1388.4 1664.3,1361.7 1638.3,1876.6 1304.3,1893.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0521/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[590.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16545023975871,39.80429368173701]}},{"type":"Feature","properties":{"resourceCoords":[1056.0,1876.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16434015975022,39.80106572178066]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p522 [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":"0.0"},{"label":"split_canvas_w","value":"6736.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.0,1843.1 185.9,1907.8 366.8,1835.1 401.8,1190.8 560.9,1067.5 1596.1,1058.3 1646.4,870.0 1676.0,869.3 1676.0,636.0 1665.6,616.2 1661.8,131.3 1661.2,107.9 1483.8,107.7 1361.4,107.2 1076.0,106.2 372.1,112.5 45.1,111.0 46.6,589.1 30.1,875.4 5.1,1213.8 7.3,1315.3 35.3,1367.2 61.5,1341.1 38.0,1843.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[375.0,890.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1621417795038,39.80284168966413]}},{"type":"Feature","properties":{"resourceCoords":[1631.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15909161881883,39.804324527643836]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p522 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1654.0"},{"label":"split_canvas_y","value":"4277.6"},{"label":"split_canvas_w","value":"5082.0"},{"label":"split_canvas_h","value":"3518.4"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"601.0,1147.7 594.3,1651.9 604.6,1672.7 599.6,1915.2 1562.7,1911.8 1641.5,1264.0 1642.6,1241.2 1589.6,1317.0 1591.3,1130.2 600.9,1133.1 601.0,1147.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0522__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[597.4,1721.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.158999638506,39.803223559463476]}},{"type":"Feature","properties":{"resourceCoords":[597.4,1126.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15902621398368,39.80428926370346]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0523/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p523","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0523/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0523","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.0,1793.6 52.2,1783.7 47.2,306.5 61.0,307.9 60.7,271.7 60.3,236.0 830.0,233.0 830.1,296.9 1563.5,267.5 1563.8,301.2 1573.0,1276.2 1573.7,1476.1 1574.5,1778.8 78.1,1799.3 78.0,1793.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0523/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,1274.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1911868,39.8044589]}},{"type":"Feature","properties":{"resourceCoords":[830.0,233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1893818,39.8063621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0524__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p524 [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":"6736.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0524__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0524","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1519.5,1846.6 1519.7,1620.1 1539.0,1598.5 1341.0,1116.8 1411.4,1117.2 1044.5,668.4 639.2,184.1 404.5,184.9 87.0,186.0 91.2,218.8 89.3,608.8 89.2,652.1 84.8,1642.4 82.8,1828.6 1519.5,1847.5 1519.5,1846.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0524__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[87.0,186.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.187655,39.807076]}},{"type":"Feature","properties":{"resourceCoords":[1806.0,1598.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.183582,39.804576]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0525__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p525 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"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":"6764.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0525__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0525","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1636.6,1808.5 1513.0,1603.8 1575.1,326.1 1574.2,123.5 1574.0,82.0 1574.4,51.5 50.9,192.9 457.1,676.6 824.9,1124.7 754.5,1124.5 953.4,1606.0 934.0,1627.6 934.2,1829.8 1412.9,1839.6 1384.8,1805.5 1636.6,1808.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0525__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[934.0,1606.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.184253,39.804568]}},{"type":"Feature","properties":{"resourceCoords":[1574.0,82.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1827952,39.8073248]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0526/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p526","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0526/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0526","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1489.0,1816.4 419.5,1804.5 296.3,1600.9 356.5,330.5 355.4,128.2 355.2,87.0 1354.2,84.1 1354.0,592.0 1347.7,1595.5 1488.7,1593.2 1488.7,1621.8 1489.0,1816.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0526/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[358.0,592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.182776,39.806411]}},{"type":"Feature","properties":{"resourceCoords":[1354.0,592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18043,39.80643]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0527/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p527","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"14"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0527/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0527","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1121.8,94.3 1605.7,99.5 1609.4,604.7 1614.2,604.7 1599.2,1107.7 1608.7,1107.9 1605.9,1612.6 1595.0,1612.4 1631.0,1877.8 1085.0,1868.1 1085.0,1876.1 232.8,1852.2 232.8,1846.5 233.0,1628.5 233.0,1600.0 92.1,1602.0 101.0,599.2 102.5,91.7 1121.8,94.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0527/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1094.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1780894,39.8064538]}},{"type":"Feature","properties":{"resourceCoords":[233.0,1600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.180088,39.804621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0528/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p528","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0528/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0528","type":"ImageService3","width":1684,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1596.9,1864.2 576.5,1868.8 576.6,1880.2 123.2,1876.8 84.5,1610.6 95.3,1610.7 93.1,1103.8 83.6,1103.7 93.6,598.4 88.8,598.4 80.0,91.1 476.6,91.3 611.9,93.0 1582.4,97.0 1614.3,97.0 1610.5,600.9 1591.3,600.8 1592.4,1069.8 1590.5,1352.0 1597.5,1635.4 1597.0,1852.0 1596.9,1864.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0528/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[574.0,1105.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.175732,39.805545]}},{"type":"Feature","properties":{"resourceCoords":[1592.0,1105.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1733428,39.8055507]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0529/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p529","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0529/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0529","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1441.2,1809.3 1172.0,1808.4 1188.3,1853.1 196.1,1834.2 197.3,1623.5 191.5,1339.5 194.5,1056.7 195.3,586.8 214.6,587.0 220.4,82.0 222.7,82.0 500.6,84.2 593.7,72.0 1500.4,74.0 1499.4,572.5 1492.7,572.6 1482.3,1231.0 1511.5,1231.0 1548.6,1809.4 1441.2,1809.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0529/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[194.0,1092.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1733428,39.8055507]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,1231.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703004,39.8053172]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0530/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p530","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0530/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0530","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"105.3,584.0 105.0,90.0 848.0,90.6 849.8,111.9 1098.2,131.1 1098.2,146.2 1603.1,131.1 1603.6,1810.8 1599.3,1810.8 840.8,1811.8 570.0,1809.0 157.2,1809.7 118.9,1236.5 90.0,1236.6 98.6,584.1 105.3,584.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0530/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703,39.807399]}},{"type":"Feature","properties":{"resourceCoords":[594.0,1809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.169126,39.804282]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0531/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p531","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0531/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0531","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"355.1,123.7 777.2,123.8 1119.7,124.5 1583.6,125.5 1589.3,625.8 1587.2,625.8 1560.3,1128.7 1579.5,1128.8 1600.5,1648.5 563.0,1741.2 358.8,1741.9 42.8,1743.1 39.0,1711.0 40.5,1130.6 103.7,1131.8 355.1,123.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0531/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[601.0,1737.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18634070729917,39.807100598419]}},{"type":"Feature","properties":{"resourceCoords":[1118.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18514227142919,39.80820410740297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0532/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p532","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0532/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0532","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"248.4,125.8 1636.8,122.0 1636.4,1131.0 1634.7,1640.8 627.5,1644.1 627.9,1613.5 116.2,1661.0 93.2,1137.2 73.8,1137.2 99.2,630.2 101.4,630.2 93.9,126.0 248.4,125.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0532/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[631.0,1137.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.182799,39.808235]}},{"type":"Feature","properties":{"resourceCoords":[631.0,630.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.182811,39.809145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0533/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p533","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0533/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0533","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"485.9,119.3 1125.7,120.2 1430.7,120.7 1587.5,120.9 1587.3,622.7 1585.4,622.7 1574.8,1132.9 1589.3,1133.0 1595.3,1639.2 1150.1,1637.5 120.9,1642.1 120.5,1131.9 116.7,122.0 485.9,119.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0533/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.0,1635.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.17809569158405,39.807372530560954]}},{"type":"Feature","properties":{"resourceCoords":[139.0,125.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18042090040493,39.81006983784572]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0534/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p534","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0534/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0534","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.2,132.5 644.5,133.2 1076.1,133.6 1483.2,134.3 1659.5,631.7 1482.8,631.9 1417.6,1142.5 1467.2,1142.4 1518.7,1650.0 696.6,1644.3 561.5,1642.3 122.4,1640.8 116.3,1137.9 102.0,1137.9 112.4,631.0 114.3,631.0 114.4,132.5 119.2,132.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0534/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[656.0,633.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.17576,39.809195]}},{"type":"Feature","properties":{"resourceCoords":[656.0,1644.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.175746,39.80737]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0535/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p535","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0535/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0535","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"296.3,1713.0 149.2,1712.0 97.5,1205.1 48.1,1205.2 113.0,695.4 289.4,695.1 113.2,198.5 198.6,199.0 446.9,200.4 1578.1,206.9 1604.5,207.1 1602.0,699.0 1602.0,1703.0 699.6,1702.3 607.0,1714.7 330.4,1712.9 296.3,1713.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0535/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1602.0,699.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.170313,39.809214]}},{"type":"Feature","properties":{"resourceCoords":[1602.0,1703.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703,39.807399]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0536/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p536","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0536/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0536","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1608.5,1743.5 1098.1,1758.8 1098.0,1743.5 846.9,1724.1 845.1,1702.5 94.0,1701.9 93.0,691.2 95.0,196.0 633.6,198.2 971.6,197.7 1301.4,193.2 1511.8,193.8 1601.6,194.1 1604.7,1201.3 1608.4,1201.3 1608.5,1743.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0536/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[844.0,1198.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.168552,39.80831]}},{"type":"Feature","properties":{"resourceCoords":[95.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703135,39.8101033]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0537/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p537","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0537/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0537","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1633.7,1827.2 1029.2,1797.2 1029.0,1812.3 686.2,1797.0 673.8,1773.8 632.1,1770.8 609.6,1793.7 27.6,1767.7 34.7,1180.9 31.0,1180.8 40.3,178.1 74.4,178.5 410.8,192.3 753.7,190.5 1047.1,195.6 1308.1,203.0 1649.0,205.7 1639.3,1238.2 1633.7,1827.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0537/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1045.0,199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16443184882398,39.810111754225744]}},{"type":"Feature","properties":{"resourceCoords":[1606.0,199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1631147160902,39.81012881546543]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0538/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p538","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0538/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0538","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1018.5,1756.3 546.3,1754.3 60.5,1749.2 44.9,1749.0 54.7,113.2 634.2,135.6 656.5,112.7 697.9,115.4 710.5,138.5 1051.7,151.6 1051.8,136.5 1653.7,162.8 1652.5,483.9 1657.3,696.4 1656.2,1762.2 1018.5,1756.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0538/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[67.0,1182.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1667022792389,39.80531495757958]}},{"type":"Feature","properties":{"resourceCoords":[1633.0,522.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16302477582506,39.80654167711414]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0539/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p539","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0539/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0539","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1366.8,1829.5 859.5,1876.1 859.8,1825.5 513.0,1805.8 513.0,1811.0 169.8,1812.3 170.6,1230.6 171.8,196.6 517.5,201.5 1361.8,206.0 1373.4,254.7 1366.5,1182.5 1366.7,1723.8 1366.8,1829.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0539/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[515.0,1178.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1621888,39.8083557]}},{"type":"Feature","properties":{"resourceCoords":[858.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1614044,39.8101154]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0540/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p540","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0540/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0540","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"172.3,673.1 168.7,460.7 171.8,131.4 512.9,132.8 512.9,127.7 857.4,149.9 856.7,200.1 1361.2,157.8 1361.0,171.2 1358.7,500.7 1449.9,501.6 1483.7,501.9 1591.7,1124.5 1578.1,1124.3 1554.6,1760.5 1518.3,1759.7 1224.9,1753.2 501.2,1746.5 165.2,1738.9 172.3,673.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0540/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[852.0,1118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1613423,39.8054401]}},{"type":"Feature","properties":{"resourceCoords":[509.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1621758,39.806568]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0541/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p541","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0541/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0541","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1606.4,1892.0 1607.3,1937.1 1566.0,1939.0 1565.0,1948.0 1557.8,1948.0 1558.2,1839.7 581.3,1822.6 96.2,1817.5 95.7,1706.2 93.0,1167.0 95.8,242.8 84.0,194.3 579.0,195.0 1278.4,181.6 1601.7,172.9 1603.5,1113.0 1594.8,1265.0 1597.8,1705.4 1603.8,1826.5 1606.4,1892.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0541/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[93.0,1167.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1601923,39.8083609]}},{"type":"Feature","properties":{"resourceCoords":[579.0,195.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1590579,39.8101223]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0542/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p542","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0542/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0542","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1547.5,1931.7 1546.6,1747.7 571.0,1764.7 570.8,1755.1 389.2,1753.7 299.9,1752.8 315.9,1118.7 329.5,1118.7 214.6,499.9 180.9,499.9 90.0,500.0 88.5,171.8 88.5,164.3 570.7,169.7 1541.8,187.1 1541.3,294.7 1590.8,295.7 1593.3,431.5 1594.6,758.8 1584.3,1106.5 1585.8,1468.1 1598.8,1617.4 1598.6,1856.3 1547.5,1931.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0542/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,500.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.160171,39.806574]}},{"type":"Feature","properties":{"resourceCoords":[574.0,1119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.159018,39.805452]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0543/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p543","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0543/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0543","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1624.7,1829.0 1116.0,1796.9 1116.3,1806.2 93.5,1838.5 93.1,1829.6 85.5,1706.2 76.8,1257.0 83.8,1101.7 70.2,142.6 1128.1,112.5 1565.2,99.1 1581.5,1071.7 1615.8,1308.6 1624.7,1829.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0543/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1104.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15428479238494,39.80833285149981]}},{"type":"Feature","properties":{"resourceCoords":[1568.0,134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1531951560347,39.81016408823538]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0544/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p544","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0544/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0544","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1522.3,1817.0 778.8,1788.9 542.4,1882.7 417.8,1822.8 123.2,1820.4 122.6,1811.1 123.6,1573.8 111.2,1425.5 111.0,1066.5 122.4,721.2 122.2,396.3 119.2,205.2 117.3,149.0 1107.0,133.8 1107.0,124.8 1598.5,163.7 1598.6,293.6 1597.8,755.1 1592.4,1063.8 1627.1,1063.2 1522.3,1817.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0544/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[88.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15668025951581,39.8054764651338]}},{"type":"Feature","properties":{"resourceCoords":[88.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15669161005367,39.806550062773276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0545/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p545","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0545/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0545","type":"ImageService3","width":1691,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"536.6,229.2 1079.3,217.0 1590.5,210.1 1587.8,1284.9 1587.5,1837.5 1088.0,1844.8 1088.0,1851.0 589.6,1854.9 92.7,1846.4 93.2,1417.5 63.9,1184.8 65.2,232.0 536.6,229.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0545/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[878.0,761.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.151274,39.809284]}},{"type":"Feature","properties":{"resourceCoords":[878.0,221.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.151287,39.810261]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p546 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4426.0"},{"label":"split_canvas_w","value":"3564.0"},{"label":"split_canvas_h","value":"3370.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"141.0,1200.1 175.8,1718.3 188.6,1948.0 203.4,1948.0 204.6,1929.1 494.4,1942.2 482.8,1868.8 808.8,1864.9 805.6,1679.8 876.5,1623.9 887.2,1187.0 636.6,1164.0 141.0,1200.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[156.0,1456.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14957327576481,39.80664092785043]}},{"type":"Feature","properties":{"resourceCoords":[657.0,1211.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14835326274915,39.80703448437547]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p546 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"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":"6744.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1608.8,1016.6 1594.0,1014.9 1600.1,782.2 1608.0,256.6 1610.0,123.0 1108.3,123.2 1108.2,129.4 607.8,126.1 109.1,110.4 105.8,323.6 97.2,792.8 86.6,1106.5 121.8,1106.5 127.1,1072.9 890.3,1099.2 1040.8,1372.5 1053.1,1784.6 1135.6,1779.2 1144.5,1719.5 1461.1,1637.4 1530.3,1564.2 1608.8,1016.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0546__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[103.0,504.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1530889,39.8065963]}},{"type":"Feature","properties":{"resourceCoords":[1604.0,504.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.149569,39.806663]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0547/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p547","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0547/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0547","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"589.3,1843.7 90.2,1841.2 97.5,1157.8 111.1,86.3 857.0,88.0 1598.0,85.8 1585.3,1100.8 1585.8,1284.9 1592.5,1306.2 1587.4,1305.9 1605.4,1886.2 1232.8,1930.6 1071.1,1838.1 840.0,1870.6 838.4,1886.2 589.3,1843.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0547/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[599.0,1104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1484076,39.8084655]}},{"type":"Feature","properties":{"resourceCoords":[98.0,1104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.149591,39.808447]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0548__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p548 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"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":"4812.4"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0548__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0548","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"110.0,92.1 102.0,1102.0 103.4,1285.2 110.1,1306.3 578.0,1335.7 668.2,1241.0 672.0,997.0 948.8,787.0 950.5,782.0 1112.2,299.2 1142.8,95.2 599.0,90.0 110.0,92.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0548__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[102.0,1102.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1460781,39.8085077]}},{"type":"Feature","properties":{"resourceCoords":[599.0,90.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.144936,39.810368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0549/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p549","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0549/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0549","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"270.1,1235.4 291.7,1235.2 323.8,684.4 271.9,684.7 474.8,132.2 937.6,130.1 987.6,129.9 1541.7,127.7 1545.8,677.2 1542.2,677.2 1550.2,1226.2 1558.3,1226.2 1550.8,1774.8 962.0,1779.0 622.1,1781.4 297.9,1784.3 270.1,1235.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0549/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[962.0,130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1851871,39.813036]}},{"type":"Feature","properties":{"resourceCoords":[962.0,1779.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1851703,39.8100304]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0550/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p550","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0550/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0550","type":"ImageService3","width":1686,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.0,1231.0 118.8,1231.0 113.1,678.5 116.8,678.5 115.0,125.5 502.4,125.6 530.0,149.6 544.1,200.4 543.3,134.0 1526.0,131.8 1525.9,147.9 1521.7,673.1 1522.0,1228.0 1516.8,1777.3 140.9,1783.0 117.0,1783.1 127.0,1231.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0550/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[523.0,1782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.182816,39.810051]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.180472,39.81107]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0551/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p551","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0551/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0551","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"367.2,1225.2 361.8,672.6 361.1,149.6 361.0,125.0 1339.3,114.1 1379.7,1763.9 1362.0,1764.0 731.1,1767.2 367.1,1772.3 367.2,1225.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0551/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[361.0,125.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.180485,39.813071]}},{"type":"Feature","properties":{"resourceCoords":[1362.0,1764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1781175,39.810089]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0552/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p552","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0552/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0552","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"200.6,1770.0 160.7,141.1 1195.5,130.4 1198.4,15.7 1230.8,15.5 1161.4,1765.0 641.9,1767.7 482.9,1768.5 200.6,1770.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0552/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1162.0,1765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1757939,39.8100971]}},{"type":"Feature","properties":{"resourceCoords":[177.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.178129,39.81309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0553/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p553","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0553/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0553","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1035.8,1819.8 1225.0,1826.8 1631.3,528.2 1634.3,426.8 1637.5,317.8 1640.8,206.0 1645.2,185.0 1503.0,129.3 325.7,116.2 323.9,73.0 310.1,1.0 252.1,1.0 114.4,1790.0 115.0,1790.0 266.6,1794.8 545.0,1803.5 950.6,1816.7 1035.8,1819.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0553/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.17621865107398,39.81332918608259]}},{"type":"Feature","properties":{"resourceCoords":[1680.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.17226096547024,39.813440113028854]}},{"type":"Feature","properties":{"resourceCoords":[1680.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.1720934624529,39.8099126633371]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-86.17605114805664,39.80980173639084]}},{"type":"Feature","properties":{"resourceCoords":[115.0,1790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1757939,39.8100971]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0554/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p554","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0554/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0554","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"367.8,1796.1 309.3,1796.0 669.6,484.4 669.1,382.9 667.8,162.1 671.5,140.9 907.3,83.4 1231.6,115.7 1231.4,143.5 1517.9,144.9 1523.0,619.0 1498.1,619.1 1497.7,1798.0 1496.7,1798.0 367.8,1796.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0554/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1523.0,619.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703174,39.8122391]}},{"type":"Feature","properties":{"resourceCoords":[1523.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1703135,39.8101033]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0555/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p555","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0555/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0555","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1546.8,1773.7 1528.5,602.9 1517.3,603.0 1502.8,136.3 1466.6,113.3 1200.1,119.6 446.3,55.7 128.9,130.7 1.0,118.5 1.0,146.0 284.2,145.9 291.6,616.4 266.9,616.6 272.1,1786.3 297.2,1786.2 826.9,1784.1 1159.4,1781.0 1483.7,1774.0 1546.8,1773.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0555/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1294.0,604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1679347,39.8122554]}},{"type":"Feature","properties":{"resourceCoords":[1294.0,138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1679309,39.8131062]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0556/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p556","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0556/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0556","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1368.6,1792.3 1074.8,1791.6 731.4,1798.4 394.5,1789.6 270.8,1789.6 125.1,1789.5 113.1,602.9 101.8,602.9 89.7,129.9 53.2,106.3 891.3,91.2 1071.1,39.1 1587.6,85.2 1587.2,19.3 1612.9,19.5 1613.2,125.3 1617.5,602.7 1624.8,1076.2 1628.5,1437.0 1629.9,1795.9 1368.6,1792.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0556/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[594.0,603.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16624954837316,39.812257610177696]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,603.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16389019396566,39.81226147781071]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0557/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p557","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0557/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0557","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.2,1454.7 98.6,1117.6 98.7,387.8 98.7,386.8 98.8,221.8 1609.4,223.9 1607.0,1152.4 1608.4,1663.1 1361.5,1695.5 603.8,1719.0 603.9,1729.6 99.2,1720.1 98.2,1454.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0557/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1118.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1614492850986,39.813729659311306]}},{"type":"Feature","properties":{"resourceCoords":[1581.0,228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16036628830574,39.815374160326286]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0558/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p558","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0558/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0558","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"101.1,1717.1 101.0,1358.6 98.6,998.4 92.9,525.5 91.8,316.6 601.2,325.7 601.1,314.9 1365.9,290.4 1615.0,257.5 1617.5,897.4 1618.8,1676.2 1630.0,1721.9 787.2,1719.9 442.0,1716.0 101.1,1717.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0558/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1626356,39.811415]}},{"type":"Feature","properties":{"resourceCoords":[442.0,1716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1630134,39.810118]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0559/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p559","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0559/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0559","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1573.6,1595.1 1572.5,1678.6 574.2,1855.8 574.5,1827.6 57.9,1752.1 62.3,1345.1 77.6,388.8 553.0,397.1 638.4,326.5 1587.9,326.3 1583.3,606.4 1581.7,845.4 1576.9,1047.6 1571.2,1524.8 1573.6,1595.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0559/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[66.0,1314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16028255033481,39.813746474390236]}},{"type":"Feature","properties":{"resourceCoords":[66.0,414.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16032452514507,39.81533700734792]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0560/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p560","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0560/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0560","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"577.9,300.1 578.2,327.6 1545.2,136.6 1544.7,55.4 1542.8,20.9 1584.9,22.0 1582.9,112.1 1584.0,365.9 1591.7,1369.5 1605.5,1569.0 1606.5,1778.8 1285.0,1788.5 589.5,1804.2 97.2,1805.1 85.8,1759.8 80.8,987.2 74.3,236.5 577.9,300.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0560/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,1794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16028302369907,39.81013991861404]}},{"type":"Feature","properties":{"resourceCoords":[1589.0,1794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15669217393217,39.81014240246647]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0561/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p561","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0561/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0561","type":"ImageService3","width":1680,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.1,1510.3 59.6,1042.0 60.5,843.5 58.4,672.4 96.0,656.0 94.5,332.2 94.3,249.2 110.2,249.1 140.1,12.0 152.3,12.0 154.2,67.3 348.9,37.5 543.5,127.6 835.6,90.4 1526.1,145.8 1561.0,221.2 1601.0,220.4 1597.8,1228.2 1580.8,1228.5 1581.2,1279.0 1584.4,1801.1 105.9,1761.9 105.3,1636.5 107.3,1545.5 65.1,1544.5 63.8,1523.3 63.1,1510.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0561/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1109.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15435972023288,39.81571053489615]}},{"type":"Feature","properties":{"resourceCoords":[99.0,244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15672819513657,39.81570879693728]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0562/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p562","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0562/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0562","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.4,1574.8 101.2,1369.8 114.2,339.8 116.3,206.9 1618.4,277.0 1611.4,783.0 1604.0,1790.0 1166.6,1790.7 108.0,1790.0 111.4,1574.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0562/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[108.0,1790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1566508,39.8101701]}},{"type":"Feature","properties":{"resourceCoords":[1604.0,1790.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.153201,39.810226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0563/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p563","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0563/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0563","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"98.2,160.9 143.6,86.2 301.1,64.5 465.6,140.4 1170.5,114.2 1290.3,129.8 1312.5,189.9 1604.8,191.5 1617.8,136.6 1621.7,1258.3 1622.9,1782.2 1108.5,1738.0 1108.5,1766.7 595.1,1750.2 595.1,1731.2 83.3,1759.5 82.5,1290.0 82.4,1239.5 99.4,1239.2 107.1,230.4 67.0,231.0 32.4,155.3 98.2,160.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0563/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1110.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15084416557407,39.81397040895179]}},{"type":"Feature","properties":{"resourceCoords":[1614.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14966359295968,39.813975275481894]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0564/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p564","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0564/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0564","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1106.3,1747.9 557.4,1761.9 80.7,1766.3 74.0,769.0 73.9,214.2 588.7,186.7 588.8,205.8 1105.1,223.1 1105.1,194.3 1622.5,239.6 1622.8,717.8 1623.4,1739.2 1106.3,1747.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0564/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[904.0,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15128413098827,39.810270997285656]}},{"type":"Feature","properties":{"resourceCoords":[594.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.15202218158412,39.81202904961144]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0565/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p565","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0565/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0565","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.5,1252.9 125.4,137.1 136.0,95.1 278.6,53.2 478.2,139.3 1254.2,125.3 1379.9,180.1 1573.7,184.1 1590.0,117.2 1621.7,121.8 1605.5,1249.8 1599.2,1748.1 1102.5,1781.8 1102.7,1770.2 607.2,1751.0 607.0,1772.1 105.7,1788.5 112.5,1252.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0565/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[113.0,1212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.149646,39.813993]}},{"type":"Feature","properties":{"resourceCoords":[1606.0,1212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.146131,39.814048]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0566/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p566","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0566/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0566","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"830.5,1740.0 82.2,1738.2 95.3,728.2 101.2,269.9 602.6,253.7 602.8,232.6 1098.1,252.0 1098.0,263.5 1594.6,230.0 1588.2,724.1 1573.8,1738.0 830.5,1740.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0566/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[598.0,742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.148443,39.812115]}},{"type":"Feature","properties":{"resourceCoords":[1588.0,742.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.146112,39.812152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0567/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p567","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0567/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0567","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1110.4,1748.9 1109.8,1741.1 643.9,1775.4 143.7,1723.9 152.7,1254.9 176.5,114.2 700.4,192.3 921.1,122.8 1260.5,124.4 1573.7,261.1 1627.5,503.9 1600.8,933.2 1531.6,984.2 1504.3,1157.0 1576.7,1272.1 1583.4,1581.6 1609.2,1620.0 1110.4,1748.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0567/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[665.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14500345753521,39.815883182377966]}},{"type":"Feature","properties":{"resourceCoords":[160.0,204.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14617898984002,39.81585891928091]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0568/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p568","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0568/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0568","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"144.3,738.1 148.6,217.8 635.9,262.6 1089.0,224.2 1089.7,231.8 1573.8,101.0 1620.0,167.9 1649.0,652.9 1564.5,1356.2 1622.3,1415.9 1647.2,1695.2 1572.4,1782.2 1168.0,1827.1 1134.2,1928.2 1131.6,1928.2 1160.0,1739.2 620.3,1734.1 134.9,1736.2 144.3,738.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0568/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[647.0,744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14490962717348,39.812188217284344]}},{"type":"Feature","properties":{"resourceCoords":[144.0,1736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.14607527124949,39.81035067276477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0569/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p569","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0569/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0569","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.8,96.5 70.3,86.5 70.4,75.2 562.9,68.9 562.8,72.7 1105.7,68.1 1105.7,75.7 1592.7,92.4 1592.2,247.3 1586.6,1269.4 1587.0,1855.0 1345.5,1811.2 1345.7,1824.1 1085.6,1847.8 575.2,1822.2 575.2,1799.7 69.3,1754.2 69.4,1736.2 37.0,1721.3 37.8,96.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0569/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[70.0,1240.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.163911,39.819359]}},{"type":"Feature","properties":{"resourceCoords":[70.0,266.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.163931,39.821116]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0570/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p570","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0570/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0570","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.7,53.4 88.0,68.2 88.0,86.2 592.9,132.2 592.8,154.7 1102.2,180.7 1361.9,157.4 1361.7,144.6 1602.7,188.5 1602.5,670.0 1600.3,1529.5 1602.5,1788.5 80.5,1781.8 80.0,1948.0 52.6,1948.0 55.7,53.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0570/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1104.0,712.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1614968,39.8173186]}},{"type":"Feature","properties":{"resourceCoords":[588.0,1784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.162686,39.815372]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0571/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p571","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0571/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0571","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"53.3,1872.2 563.9,1853.2 563.8,1877.7 1064.3,1866.0 1064.4,1860.5 1545.9,1883.0 1545.9,1898.2 1545.2,1932.8 1594.2,1930.4 1613.1,1929.5 1588.2,900.6 1566.3,1.0 1554.5,1.0 1554.0,71.5 1071.4,70.2 1071.4,63.2 570.2,75.3 570.2,56.8 62.2,60.2 61.4,226.9 54.0,1256.1 53.3,1872.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0571/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1068.0,1232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.157984,39.819392]}},{"type":"Feature","properties":{"resourceCoords":[54.0,1232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.160349,39.819373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0572/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p572","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0572/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0572","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1593.2,1528.9 1593.3,1611.3 1594.3,1932.8 1556.8,1931.7 1556.3,1886.0 1555.8,1613.1 631.0,1630.0 549.0,1700.2 85.8,1700.5 81.8,1442.5 77.3,586.4 74.1,132.8 578.1,110.0 578.2,134.1 1072.3,118.5 1072.3,113.2 1548.0,131.5 1548.1,146.4 1547.8,180.6 1614.8,176.8 1615.4,196.1 1650.7,1281.6 1651.1,1293.5 1639.0,1293.5 1609.0,1528.8 1593.2,1528.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0572/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[80.0,633.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16031844367998,39.81731873819104]}},{"type":"Feature","properties":{"resourceCoords":[81.0,1704.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.16031033228082,39.81537554285394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0573/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p573","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0573/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0573","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.6,1893.2 53.2,1903.5 38.4,110.4 105.6,20.8 1591.9,24.9 1591.4,92.9 1601.2,1089.0 1605.7,1885.8 1119.3,1873.4 1119.2,1865.8 577.2,1875.1 577.2,1871.3 85.5,1882.0 85.6,1893.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0573/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[574.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.162785,39.822927]}},{"type":"Feature","properties":{"resourceCoords":[80.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.163947,39.822927]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0574/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p574","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0574/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0574","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"109.1,1103.0 100.2,96.3 100.8,27.6 1299.8,32.2 1533.7,47.6 1624.1,138.2 1600.2,1255.1 1619.3,1823.2 1607.6,1823.3 1607.7,1895.0 1124.1,1898.2 1124.0,1891.2 621.8,1908.0 621.7,1889.4 112.7,1897.6 109.1,1103.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0574/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[109.0,1081.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.160369,39.822932]}},{"type":"Feature","properties":{"resourceCoords":[616.0,1081.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.159189,39.822933]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0575/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p575","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0575/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0575","type":"ImageService3","width":1683,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"273.4,36.5 83.0,70.1 42.6,1789.8 20.9,1787.3 21.0,1792.0 1.0,1795.8 1.0,1814.2 5.9,1814.8 681.0,1874.7 681.0,1880.3 692.8,1891.9 1078.1,1890.0 1103.4,1889.9 1576.6,1887.8 1590.5,1899.8 1590.4,1924.8 1597.7,1925.2 1582.8,993.2 1589.0,993.1 1587.3,701.6 1585.5,679.2 1584.3,552.0 1587.2,412.2 1578.9,412.9 1595.7,154.7 1577.3,154.9 1612.8,137.3 1487.2,138.2 1479.5,98.3 1477.9,37.5 1252.5,22.6 1227.0,35.4 1206.9,58.8 1199.0,79.8 1192.4,52.9 837.1,54.4 844.5,69.4 313.7,97.0 313.6,88.9 313.3,70.3 273.4,36.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0575/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[678.0,1299.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1871398,39.8151669]}},{"type":"Feature","properties":{"resourceCoords":[678.0,999.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1871454,39.8162517]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0576__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p576 [1]","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"18"},{"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":"6776.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0576__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0576","type":"ImageService3","width":1694,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1098.4,1902.5 1617.1,1899.3 1618.8,1841.8 1635.4,1834.0 1638.3,1825.3 1664.5,1824.5 1656.6,1644.6 1568.5,1384.7 1572.7,1225.2 1613.5,1214.2 1617.4,1166.0 1487.6,1161.8 1454.7,1013.3 1388.4,890.7 1388.8,760.9 1504.0,720.5 1325.9,719.9 1296.3,690.0 1196.9,485.7 1061.1,73.5 315.6,82.1 315.1,71.1 99.0,178.3 117.2,178.1 100.7,434.8 109.0,434.1 106.2,573.1 107.4,699.6 109.2,721.9 111.0,1011.8 104.8,1011.8 119.6,1905.5 609.0,1901.8 609.0,1897.5 1098.2,1894.0 1098.4,1902.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0576__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[606.0,172.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.180527,39.819346]}},{"type":"Feature","properties":{"resourceCoords":[1105.0,1619.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.178141,39.81409]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0577__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p577 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6712.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0577__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0577","type":"ImageService3","width":1678,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"671.7,65.8 120.5,65.5 65.3,145.8 39.9,272.6 74.8,697.6 52.6,1118.2 82.4,1263.8 249.3,1267.1 248.8,1295.5 281.1,1299.2 376.9,1267.6 603.0,1261.1 640.1,1342.2 642.8,1862.8 684.2,1918.6 687.4,1948.0 694.0,1948.0 692.0,1930.8 690.0,1913.9 1055.4,1873.3 1058.7,1903.7 1405.5,1852.5 1405.0,1848.2 1383.8,1666.1 1380.0,1651.0 1376.4,1636.2 1344.2,1363.8 1373.9,1360.8 1434.6,873.6 1479.5,868.2 1437.3,609.9 1447.5,608.7 1433.6,346.4 1409.1,349.3 1475.9,77.2 1333.2,93.8 1321.0,84.1 1320.4,79.1 1320.4,78.9 679.9,93.2 672.9,76.2 692.1,70.2 671.7,65.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0577__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1380.0,1651.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.187655,39.807076]}},{"type":"Feature","properties":{"resourceCoords":[1380.0,617.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.1871054,39.8110123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0578/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Indianapolis, Indiana | 1950 | sanborn02371_019 p578","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T12:08:54Z","modified":"2026-10-18T12:08:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0578/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0578","type":"ImageService3","width":1658,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"199.9,1379.7 197.7,1122.8 195.8,524.9 195.2,312.2 193.6,113.6 333.1,113.3 890.2,115.5 1150.6,111.4 1254.6,112.1 1357.4,119.8 1421.4,65.2 1604.3,115.5 1586.1,176.1 1597.4,732.2 1636.8,971.3 1600.7,1355.5 1640.6,1534.9 1639.1,1758.8 1593.3,1907.8 1354.7,1883.8 425.6,1896.4 202.1,1869.7 199.9,1379.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd409m:g4094m:g4094im:g4094im_g02371195005:02371_05_1950-0578/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[764.0,1121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.18741115609808,39.789110578753665]}},{"type":"Feature","properties":{"resourceCoords":[1148.0,1885.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-86.19099398302527,39.78770403751999]}}]}}]}