{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn06648_067.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cleveland, Ohio | 1952 | mapsnap generated fit (2026-10-17)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-17"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"102"},{"label":"placed","value":"90"},{"label":"unplaced","value":"12"},{"label":"fit sources","value":"georef-snap 62, georef 25, snap:0 2, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"11 sheet(s) cut into 23 panels"},{"label":"unplaced pages","value":"p101 (tier 4, 41.48407,-81.79761 +/-2712m); p20 (tier 1, 41.48581,-81.77825 +/-269m); p41__3 (tier 1, 41.48093,-81.82195 +/-113m); p67__1 (tier 1, 41.48388,-81.77663 +/-109m); p75 (tier 2, 41.47617,-81.77236 +/-186m); p78__2 (tier 1, 41.47318,-81.77627 +/-155m); p81 (tier 1, 41.47404,-81.77095 +/-268m); p82 (tier 2, 41.48233,-81.78393 +/-100m); p84__1 (tier 1, 41.47245,-81.77343 +/-102m); p84__2 (tier 2, 41.47428,-81.77948 +/-344m); p98__1 (tier 1, 41.47021,-81.77893 +/-100m); p98__2 (tier 1, 41.47000,-81.77970 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p10","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0010","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1472.0,167.9 1453.8,1905.3 989.3,1905.7 989.2,1919.1 581.0,1919.9 581.0,1925.6 192.0,1928.1 192.1,1908.0 170.6,1900.0 169.3,419.3 169.0,71.0 196.2,70.9 214.6,70.8 575.8,68.7 1473.0,72.5 1472.0,167.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[995.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.800423,41.491822]}},{"type":"Feature","properties":{"resourceCoords":[169.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.802443,41.491843]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0100/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p100","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.34"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0100/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0100","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"313.3,1876.0 15.4,1579.8 45.5,1541.3 70.0,1558.3 214.8,1016.6 239.7,982.2 242.8,979.2 256.6,836.9 251.0,814.1 278.7,805.7 122.1,458.0 99.4,465.4 154.2,194.1 250.8,235.4 550.2,198.6 677.0,159.8 712.9,116.3 1044.0,248.1 1250.5,278.4 1303.3,132.3 1345.8,110.7 1165.7,501.3 1219.7,504.9 1159.9,550.4 1125.8,592.5 1421.2,894.1 1620.0,945.8 1485.7,1305.5 1416.8,1483.2 1325.9,1714.2 1172.2,1898.8 1146.5,1893.1 1143.2,1901.8 1031.5,1860.5 978.5,1847.5 941.1,1848.0 772.5,1811.0 788.4,1774.9 759.8,1760.0 448.8,1837.8 389.3,1998.7 392.1,2004.5 316.0,1984.0 313.3,1876.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0100/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8290353,41.4924322]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8215937,41.4944471]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8183335,41.4876909]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8257751,41.485676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0011","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1039.5,1866.1 569.2,1868.3 569.2,1871.1 108.8,1887.3 100.0,172.3 99.5,79.0 1033.5,68.1 1632.9,107.6 1632.8,188.4 1651.0,1883.5 1039.5,1851.3 1039.5,1866.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1044.0,94.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79689479310737,41.49172687465795]}},{"type":"Feature","properties":{"resourceCoords":[114.0,94.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79921903686034,41.49177814294313]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0012","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1578.9,188.4 1538.7,1819.2 1151.1,1836.5 1150.8,1816.2 491.2,1822.0 491.2,1838.2 43.0,1858.3 48.5,158.1 49.8,77.6 491.4,103.7 1091.3,155.2 1282.9,166.2 1578.9,188.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[507.0,117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79427850218732,41.49158164291547]}},{"type":"Feature","properties":{"resourceCoords":[79.0,117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79535225665437,41.49159405424401]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0013","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.9,1782.5 19.4,1611.8 32.5,1364.9 49.9,1055.1 61.0,823.8 80.2,548.4 85.0,269.0 94.6,96.4 171.8,94.8 1612.5,82.9 1624.0,533.4 1619.8,533.5 1629.4,1007.4 1631.7,1007.4 1627.3,1481.5 1630.9,1783.3 10.9,1782.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.78714099234809,41.49130288243582]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.78730687781275,41.4881673202359]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79234475958496,41.48831898672401]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.7921788741203,41.491454548923926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0014","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1606.4,374.3 1566.0,842.3 1561.5,884.9 1554.4,933.6 1539.1,1100.4 1533.9,1205.3 1540.4,1294.0 1562.6,1579.6 1580.7,1805.5 467.1,1800.0 467.9,1818.6 34.8,1813.7 34.6,1506.4 44.6,1023.6 42.2,1023.6 38.0,540.8 42.3,540.9 35.6,81.9 337.0,82.7 673.4,82.5 1636.2,86.2 1606.4,374.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[437.0,1027.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7898545,41.4875851]}},{"type":"Feature","properties":{"resourceCoords":[437.0,1510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.791039,41.4876106]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0015","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1627.3,1074.5 1642.8,50.6 1352.8,56.2 874.2,56.0 175.2,66.1 82.1,67.5 27.0,1093.2 1.0,1738.1 1.0,1927.5 71.4,1926.4 1632.2,1921.0 1628.5,1492.3 1630.6,1074.5 1627.3,1074.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[871.0,75.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78286700503797,41.48937920056296]}},{"type":"Feature","properties":{"resourceCoords":[1347.0,1075.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7853911396677,41.48855868072518]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0016","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"249.2,1943.9 582.0,1932.5 1535.0,1904.2 1571.1,1368.2 1579.9,1201.5 1625.8,326.0 1641.0,104.9 1648.3,1.0 1617.5,1.0 1597.3,1.7 754.5,32.1 217.8,65.2 12.1,74.9 24.7,1101.6 28.0,1101.5 37.4,1520.3 52.9,1950.0 249.2,1943.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[244.0,1082.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78539948516449,41.48762889946951]}},{"type":"Feature","properties":{"resourceCoords":[244.0,1882.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78737782587112,41.487721321988275]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p17","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0017","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"320.1,1311.8 329.8,836.5 333.3,142.0 333.4,132.2 1364.2,433.8 1364.5,446.8 1377.7,1320.3 1377.0,1804.0 1354.0,1804.0 367.7,1804.0 320.0,1804.0 320.1,1311.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[320.0,1804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.782881,41.48756]}},{"type":"Feature","properties":{"resourceCoords":[1377.0,1804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.780238,41.48753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p18","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0018","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"285.7,768.7 278.0,232.0 326.1,232.0 1220.9,232.0 1536.8,482.1 1664.0,481.2 1664.0,1451.7 1472.3,1788.9 805.5,1715.0 275.8,1661.6 276.4,1610.7 285.7,768.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1343.0,232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.780238,41.48753]}},{"type":"Feature","properties":{"resourceCoords":[278.0,232.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.782881,41.48756]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p19","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0019","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"371.8,519.3 353.6,581.0 109.0,1346.0 1.0,1689.2 1.0,1825.7 43.9,1825.3 925.1,1818.7 1413.0,1823.1 1412.9,1846.3 1412.1,1945.3 1664.0,1632.2 1664.0,459.3 483.7,136.1 371.8,519.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[109.0,1346.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7790309,41.4899449]}},{"type":"Feature","properties":{"resourceCoords":[-42.0,1826.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.780218,41.490232]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p1 [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":"3588.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"4484.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"184.7,1181.5 166.7,1489.1 174.7,1489.1 154.4,1831.3 694.6,1850.3 716.6,1852.8 953.2,1854.2 1165.9,1852.7 1347.5,1849.1 1594.8,1849.9 1626.8,1481.3 1589.7,1481.1 1609.6,1121.1 1610.2,968.4 1386.5,920.2 604.4,932.3 527.4,971.9 169.8,994.7 186.8,1181.5 184.7,1181.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1176.0,1841.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81169381695538,41.4916721968883]}},{"type":"Feature","properties":{"resourceCoords":[981.0,1185.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8128455846937,41.49400410039527]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p1 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"3683.6"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"809.4,863.8 1534.8,859.1 1664.0,858.2 1664.0,842.0 1554.0,839.3 1570.7,499.0 1562.8,499.1 1577.4,193.2 1579.5,193.2 1560.7,7.8 1544.8,9.0 1537.5,75.0 1269.3,49.2 1068.0,86.1 395.8,89.7 320.1,162.3 261.7,576.7 312.9,564.9 270.0,624.1 250.0,672.9 609.8,871.2 809.4,863.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[832.0,859.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82015762331127,41.491244589956864]}},{"type":"Feature","properties":{"resourceCoords":[832.0,503.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8202533041418,41.49254519418266]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p21","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0021","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"190.9,1268.3 363.1,702.6 545.0,143.0 622.4,142.1 1075.2,136.7 1632.2,134.2 1486.0,685.9 1469.1,686.3 1427.0,1246.4 1440.8,1246.5 1459.6,1859.0 1664.0,1917.8 1664.0,2007.0 1507.0,2008.0 1506.0,2017.0 1392.0,2017.0 1389.5,1890.3 110.3,1536.0 146.1,1268.3 190.9,1268.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[681.0,1258.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.775359,41.488175]}},{"type":"Feature","properties":{"resourceCoords":[545.0,143.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.772606,41.488417]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p22","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0022","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1058.0,2017.0 669.3,2017.0 70.8,1832.0 64.2,1218.0 50.4,1217.7 103.7,657.5 120.6,657.4 278.0,107.7 302.5,108.1 1429.0,123.8 1600.0,127.0 1569.5,327.8 1522.0,678.0 1463.9,1137.1 1392.8,1649.1 1312.6,1737.2 1277.5,2017.0 1278.7,2007.2 1068.0,2006.1 1058.0,2017.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1522.0,678.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7739544,41.484096]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7725945,41.4839676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0023","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"161.9,213.1 361.4,218.5 249.8,801.2 300.3,801.4 82.1,1503.2 21.4,1684.3 1.0,1748.1 1.0,1804.3 61.3,1804.0 519.3,1801.6 1076.8,1802.9 1521.0,813.8 1653.2,223.5 1650.8,223.5 1664.0,214.8 1664.0,196.2 741.5,140.8 283.7,213.6 276.4,161.9 165.8,154.3 161.9,213.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1028.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77108685321309,41.486509515992125]}},{"type":"Feature","properties":{"resourceCoords":[280.0,817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77019532306021,41.48787810610788]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0024","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1175.1,1749.8 46.3,1751.4 15.9,1751.4 454.6,768.6 584.5,182.4 582.1,182.4 595.2,155.3 690.4,160.8 976.0,58.2 1254.4,138.8 1664.0,171.5 1664.0,183.1 1538.4,182.0 1468.0,747.7 1379.8,1469.2 1346.5,1750.4 1175.1,1749.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1454.0,777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77020174867661,41.48376954732767]}},{"type":"Feature","properties":{"resourceCoords":[1531.0,163.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.76869251716474,41.483627687965864]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p25","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0025","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"370.4,610.0 345.3,576.3 558.2,419.4 560.5,309.4 1023.0,253.1 1023.0,227.0 1401.7,332.2 1593.3,362.1 1597.5,802.0 1594.2,891.8 1580.0,959.8 1578.3,1025.5 1588.2,1055.6 1578.2,1897.1 1520.5,1820.9 1127.1,1864.9 609.9,1721.3 352.9,1825.4 105.0,1750.0 77.5,1462.2 111.4,1291.2 194.9,1209.8 181.1,1047.8 94.9,955.0 370.4,610.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1023.0,1120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8289796,41.4818269]}},{"type":"Feature","properties":{"resourceCoords":[1023.0,227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.827637,41.483154]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.21"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0026","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"59.4,1590.9 62.9,1595.4 92.7,1857.8 463.9,1916.6 1065.2,1665.3 1125.5,1765.6 1186.1,1736.4 1222.0,1782.0 1361.8,1782.7 1426.2,1722.9 1553.7,691.3 1501.7,105.0 1545.1,1.0 1530.2,1.0 1415.2,40.5 1364.7,51.7 559.9,61.7 52.9,48.1 63.2,490.0 61.2,580.4 48.0,649.0 47.1,715.0 57.5,745.1 59.4,1590.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0026/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82673788819086,41.4824419881006]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82350988547906,41.480528107172496]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82658440714513,41.477576319627914]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82981240985694,41.479490200556015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p27","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0027","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1132.7,1542.5 1147.2,1411.5 1416.5,1227.6 1540.2,1202.8 1649.9,5.8 1595.0,5.4 1591.2,1.0 1167.3,1.0 1.0,328.1 1.0,364.9 315.3,276.9 240.8,1150.8 199.2,1265.1 129.4,1386.7 18.6,1504.9 230.0,1835.9 352.6,1985.9 901.4,1598.0 995.1,1526.0 1132.7,1542.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1130.0,1430.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82489283015555,41.483464731411544]}},{"type":"Feature","properties":{"resourceCoords":[333.0,1980.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8267585046814,41.4823187861363]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0028","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,349.9 1.0,684.0 14.2,696.8 69.9,692.2 68.4,1913.7 551.8,1790.2 884.9,1697.8 1271.6,1584.9 1601.9,1479.8 1548.8,719.8 1514.2,347.6 1508.1,236.0 1506.8,1.8 1472.3,2.6 1223.7,1.0 1066.0,1.0 969.4,12.0 901.8,38.1 570.5,84.2 575.1,7.8 575.2,1.0 511.5,1.0 1.0,349.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1548.0,711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82027169230942,41.48613915617258]}},{"type":"Feature","properties":{"resourceCoords":[1281.0,1580.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8209421945236,41.48454682649202]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p29","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0029","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"573.0,1878.8 949.9,1780.8 1624.0,1581.0 1619.6,832.3 1630.2,370.5 1628.2,24.4 200.8,27.8 201.0,12.3 50.2,450.9 1.0,458.3 1.0,476.4 166.3,477.5 200.7,476.4 204.1,709.7 211.1,820.9 248.9,1191.4 308.7,1948.0 542.0,1886.9 573.0,1878.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1144.0,830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.818053,41.4867618]}},{"type":"Feature","properties":{"resourceCoords":[1624.0,1581.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8169025,41.485363]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p2 [1]","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":"3289.2"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"4782.8"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1488.7,1888.4 1496.7,1532.5 1519.2,1534.3 1532.8,1254.8 1481.0,1255.3 1486.6,1108.7 1576.2,924.4 1553.6,869.6 1363.5,915.8 1331.4,996.8 1258.1,1001.3 1118.8,1002.8 982.2,912.7 828.3,921.8 563.9,880.8 117.1,918.8 51.7,967.1 46.7,1062.0 80.3,1059.0 78.2,1516.7 131.3,1516.1 127.9,1885.4 364.0,1882.8 386.7,1882.7 566.6,1882.2 1013.2,1885.3 1488.7,1888.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,1520.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80039931369674,41.493160651408374]}},{"type":"Feature","properties":{"resourceCoords":[487.0,1026.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80179168753718,41.49499013142141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"3289.2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"239.6,393.7 204.4,753.9 423.5,755.2 733.3,756.2 962.3,776.2 1423.9,819.2 1459.2,455.2 1406.7,451.2 1448.2,1.0 1414.8,1.0 1404.3,76.1 1177.2,47.9 226.1,69.9 203.3,393.1 239.6,393.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[762.0,400.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80703758193107,41.49320890743256]}},{"type":"Feature","properties":{"resourceCoords":[986.0,400.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8059288130714,41.49327230447325]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0030","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"166.2,1806.9 162.0,1065.6 172.7,608.3 170.8,265.6 173.1,149.3 681.1,139.1 681.1,125.9 1276.2,136.4 1276.2,139.4 1541.5,159.7 1541.5,1802.0 1434.8,1801.6 1271.5,1793.8 666.6,1784.9 272.0,1780.3 271.9,1798.8 166.2,1806.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[169.0,1064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81686558836704,41.48674584263498]}},{"type":"Feature","properties":{"resourceCoords":[169.0,257.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81683304798118,41.48824805460833]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0031","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1130.7,1876.2 937.1,1877.7 779.1,1869.3 467.5,1863.0 273.4,1859.5 127.7,1860.3 112.3,150.5 348.1,159.6 348.2,176.4 765.9,148.9 765.9,145.2 1123.3,143.2 1123.3,151.0 1611.3,179.3 1614.0,634.9 1615.8,1879.2 1130.7,1876.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1130.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81103275176041,41.485275740854064]}},{"type":"Feature","properties":{"resourceCoords":[1598.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80988770640379,41.485254113559826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0032","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1111.6,1895.0 807.6,1886.2 477.0,1883.9 309.7,1876.8 29.8,1865.6 41.2,619.6 44.0,40.3 492.6,40.0 492.6,37.3 1119.5,46.4 1119.5,42.9 1581.0,78.7 1578.6,627.3 1568.3,1900.7 1111.6,1895.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[484.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80873495519545,41.48521618871348]}},{"type":"Feature","properties":{"resourceCoords":[1110.0,1865.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8072050761511,41.48519951286303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0033","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1601.0,1903.0 1583.6,1902.7 1164.0,1905.7 621.3,1894.5 159.4,1891.1 160.5,632.4 158.9,53.6 611.2,54.4 611.2,52.3 1094.6,46.1 1094.6,40.8 1569.5,41.2 1569.4,40.6 1590.7,48.2 1601.0,1903.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[162.0,1882.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80607926771316,41.48513870313298]}},{"type":"Feature","properties":{"resourceCoords":[1579.0,1882.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80257616871266,41.485081788116595]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0034","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"183.0,1913.4 181.0,64.6 568.6,60.9 568.6,55.1 975.5,53.0 975.5,39.6 1438.4,37.8 1434.0,653.7 1419.8,1846.9 1074.2,1873.8 983.5,1876.8 822.6,1894.1 570.4,1915.2 251.2,1914.9 183.0,1913.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[574.0,1874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80156180009591,41.485102070006796]}},{"type":"Feature","properties":{"resourceCoords":[157.0,1874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80258503323215,41.485115269651786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0035","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.9,726.2 42.2,127.6 509.9,106.7 509.9,103.8 987.6,97.0 987.5,82.1 1609.2,108.8 1619.5,621.7 1640.9,1730.0 1270.9,1771.9 1102.1,1791.0 1012.0,1799.9 62.6,1916.2 50.9,726.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[521.0,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7983506863763,41.485232623288816]}},{"type":"Feature","properties":{"resourceCoords":[1606.0,1745.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79567368524086,41.485329870176216]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p36","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0036","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4.7,622.7 2.3,130.3 450.6,106.7 450.4,90.4 1110.2,79.4 1110.7,99.6 1498.3,79.2 1491.4,496.1 1509.6,495.5 1498.5,1584.8 1404.6,1591.8 1142.2,1611.9 750.2,1651.0 8.9,1710.3 4.7,622.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1122.0,484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79272344698458,41.487609246958925]}},{"type":"Feature","properties":{"resourceCoords":[1374.0,1666.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79216114915727,41.48537816101908]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0037","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"219.5,1857.2 568.7,1817.2 827.8,1893.4 829.0,1903.6 942.2,1844.7 942.3,1863.2 1530.2,1703.3 1530.0,254.9 1530.1,53.1 1530.1,1.0 1525.8,1.0 1498.9,7.2 1264.3,69.2 934.5,178.1 548.2,295.5 215.5,391.8 219.5,1857.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[940.0,181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82095198973087,41.48453254058951]}},{"type":"Feature","properties":{"resourceCoords":[224.0,363.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8227115430002,41.48422318998351]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0038","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1373.8,1669.3 1664.0,1673.7 1664.0,1578.7 1374.5,1574.0 1384.8,41.0 1385.0,1.0 1371.5,1.0 1277.5,7.8 598.3,205.5 218.8,302.2 218.3,356.4 216.9,558.1 208.2,1864.3 589.5,1859.5 589.5,1853.7 976.1,1870.2 1372.7,1840.7 1373.8,1669.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[980.0,99.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81763275372388,41.485202253296016]}},{"type":"Feature","properties":{"resourceCoords":[219.0,310.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81949992983229,41.48483184229165]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0039/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p39","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0039/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0039","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"143.8,1779.7 84.5,1780.3 84.5,1382.3 86.4,772.3 92.3,607.5 90.3,355.4 93.3,162.6 1664.0,155.7 1664.0,1765.3 143.8,1779.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0039/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[102.0,1380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81565350127626,41.485356448355894]}},{"type":"Feature","properties":{"resourceCoords":[102.0,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81264774019941,41.48529386791386]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3859.6"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"4212.4"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.0,1865.6 239.1,1869.0 382.1,1876.2 527.0,1875.9 616.5,1879.1 616.7,1882.6 701.9,1880.5 1047.2,1885.7 1576.6,1900.8 1564.4,1538.2 1585.0,1543.3 1595.5,1263.1 1578.1,1262.2 1553.7,1043.0 1525.3,1007.2 1404.4,988.3 221.9,999.4 107.4,1088.5 60.5,1091.3 39.5,1211.6 51.1,1210.8 63.2,1499.1 69.3,1863.8 119.0,1865.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[771.0,1152.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78643832204308,41.49371747910189]}},{"type":"Feature","properties":{"resourceCoords":[512.0,1872.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78789182034224,41.49117973383014]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p3 [2]","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":"6660.0"},{"label":"split_canvas_h","value":"3914.4"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1367.4,933.6 1493.2,936.2 1602.2,938.9 1591.8,580.9 1576.4,298.0 1565.1,298.9 1584.2,180.7 1498.5,186.8 1424.0,70.9 1363.8,53.2 694.3,50.2 586.9,91.1 553.8,192.8 492.2,256.1 196.5,277.5 199.9,557.5 177.4,557.0 191.1,912.9 496.9,919.9 723.0,920.4 1030.6,929.2 1128.7,929.3 1367.4,933.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[656.0,246.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79440618155463,41.49409601142005]}},{"type":"Feature","properties":{"resourceCoords":[656.0,565.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79451933638524,41.49292604852166]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0040/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p40","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0040/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0040","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1380.7,1761.2 1481.4,1366.0 1450.8,1366.2 1443.3,973.8 1436.3,973.8 1428.6,587.8 1415.1,587.9 1473.7,149.3 1.0,153.4 1.0,1771.0 1304.0,1760.7 1380.7,1761.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0040/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.81237344224073,41.482230435804794]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.81248098418644,41.479151652966955]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8174269024606,41.47924999153023]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.81731936051489,41.48232877436807]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p41 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3075.2"},{"label":"split_canvas_h","value":"2108.4"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"407.3,126.3 181.1,109.8 99.2,229.0 277.8,475.0 519.5,499.2 600.0,433.5 649.6,415.6 622.9,165.7 406.5,158.8 407.3,126.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[644.8,149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82104687879908,41.480424090179575]}},{"type":"Feature","properties":{"resourceCoords":[29.0,149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82253565157254,41.480423589944586]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p41 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"18.8,1047.5 412.9,1369.1 1057.5,1854.2 1104.4,1876.2 1237.1,1921.0 1249.8,1913.7 1593.0,1909.6 1580.5,1478.9 1613.1,1475.4 1618.5,21.6 1138.5,146.6 1016.4,183.3 763.2,393.9 761.0,527.1 621.1,523.6 533.8,605.1 18.8,1047.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0041__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[940.0,1256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8244431781773,41.48190543061837]}},{"type":"Feature","properties":{"resourceCoords":[1346.0,1119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82343799087377,41.48214957052827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0042/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p42","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0042/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0042","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1664.0,1628.3 1664.0,1637.1 1664.0,1639.0 1443.7,1785.9 1412.1,1813.7 1310.8,1843.2 1306.7,1898.2 1240.5,1821.2 1221.8,1773.2 978.5,1805.5 977.1,2017.0 945.3,2017.0 954.0,1837.4 448.7,1899.9 389.7,1788.3 408.0,1788.1 246.2,1207.7 105.4,1208.6 95.7,831.8 89.9,831.8 101.2,449.4 66.9,57.7 1198.9,50.5 1581.3,53.2 1628.1,53.6 1624.4,820.7 1614.7,1498.2 1654.9,1604.3 1664.0,1628.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0042/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[979.0,1203.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81961,41.4803653]}},{"type":"Feature","properties":{"resourceCoords":[1197.0,824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.818686,41.479944]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0043/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p43","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0043/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0043","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1582.5,1799.0 1664.0,1795.7 1664.0,1748.4 1582.7,1747.5 1589.9,126.8 1310.6,116.1 826.0,108.8 632.5,108.6 474.7,98.8 163.5,89.7 152.3,1671.2 1.0,1669.4 1.0,1762.8 151.7,1764.3 150.4,1936.5 626.6,1937.7 1091.7,1935.3 1091.8,1931.8 1581.7,1964.2 1582.5,1799.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0043/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[628.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81151697005969,41.48524242184458]}},{"type":"Feature","properties":{"resourceCoords":[1098.0,119.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8103658510256,41.485228333364674]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0044/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p44","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0044/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0044","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1541.7,1852.5 1048.2,1850.8 1048.2,1841.9 572.2,1853.7 572.2,1866.5 80.6,1872.1 92.8,36.4 577.2,37.2 1050.3,34.5 1050.4,30.9 1548.9,63.4 1541.7,1852.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0044/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.81298115966152,41.48199099575491]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8089728443149,41.481939827303705]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.80905504346767,41.47827451774015]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.81306335881429,41.478325686191354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0045","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"111.4,109.8 441.1,100.7 1664.0,87.8 1664.0,1822.0 54.5,1833.2 59.3,1667.1 57.3,1339.3 62.1,1037.8 61.8,584.9 62.3,121.5 111.4,109.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[89.0,986.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80707635448702,41.48509215257846]}},{"type":"Feature","properties":{"resourceCoords":[89.0,576.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80606610810011,41.48507115926001]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0046","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1537.6,99.0 1.0,92.7 1.0,1805.0 2.4,1842.6 1465.6,1853.9 1432.3,1419.1 1452.8,1419.2 1469.8,1017.8 1463.2,1017.7 1444.7,601.0 1408.6,600.5 1537.6,99.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0046/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.80474563852205,41.482090946530356]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.80479944839212,41.47902256179516]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.80972866803192,41.47907176659107]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.80967485816186,41.48214015132626]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0047/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p47","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0047/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0047","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"962.5,1858.0 1425.2,1863.7 1429.0,1816.7 1552.7,1818.7 1606.2,1799.2 1537.6,1146.1 1609.4,549.7 1529.9,146.6 1412.3,148.4 1367.2,82.9 1367.9,1.0 1342.3,1.0 1357.0,100.6 1302.7,105.3 1039.2,105.8 944.8,135.8 721.5,139.1 668.0,131.7 363.6,132.7 338.6,104.2 300.9,104.0 291.2,104.0 162.6,604.3 198.8,604.6 218.1,1020.1 224.7,1020.2 208.4,1420.3 187.8,1420.2 222.0,1853.7 962.5,1858.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0047/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[968.0,1424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.808296,41.478054]}},{"type":"Feature","properties":{"resourceCoords":[763.0,610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8062942,41.4784078]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0048/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p48","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0048/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0048","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"526.9,1470.3 731.6,1468.7 733.2,1692.6 976.7,1568.0 977.2,1622.1 1030.5,1603.5 1075.5,1412.7 1153.4,412.2 897.5,383.8 831.8,145.4 835.9,43.3 946.2,1.0 826.1,1.0 823.2,46.6 364.8,48.4 93.3,51.3 98.5,531.8 89.8,531.9 107.9,995.1 120.5,995.0 132.8,1473.4 526.9,1470.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0048/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[741.0,1468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81289709937029,41.477461625751744]}},{"type":"Feature","properties":{"resourceCoords":[741.0,1897.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81395749629912,41.47748652215128]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0049/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p49","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0049/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0049","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"73.2,165.8 1599.2,158.8 1579.2,771.2 1577.5,771.3 1576.8,1263.2 1575.0,1263.2 1587.0,1784.3 463.2,1786.9 135.2,1793.3 86.3,1804.6 98.7,1263.1 96.6,844.5 98.2,759.5 97.8,443.5 76.3,193.8 73.2,165.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0049/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[106.0,1266.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80361092871645,41.485041044952865]}},{"type":"Feature","properties":{"resourceCoords":[106.0,772.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80238682927458,41.48502312061249]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3394.8"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"4677.2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.5,1790.7 1526.3,1795.4 1512.4,1734.5 1491.6,1328.4 1431.1,1112.3 1383.3,1051.5 1309.0,1023.2 1155.8,1012.9 1027.6,1045.8 685.7,1018.0 480.5,978.0 390.0,911.9 110.7,877.4 49.8,891.7 91.3,1476.7 160.2,1783.7 170.7,1830.5 467.7,1853.1 762.9,1881.3 825.5,1886.5 920.2,1895.8 1285.3,1923.4 1279.7,1898.8 1575.1,1888.0 1555.5,1790.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[166.0,1860.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77543349395101,41.48897864981299]}},{"type":"Feature","properties":{"resourceCoords":[1500.0,1525.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.76869896953605,41.48909125503569]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p4 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.38"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"4202.4"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"591.7,867.6 659.0,861.8 838.9,901.9 1236.2,992.5 1268.2,999.0 1421.6,1029.9 1536.8,1039.5 1603.0,1045.0 1600.8,1019.7 1572.4,705.6 1607.7,118.7 1175.1,162.2 802.8,59.9 470.2,105.6 50.0,98.5 48.7,375.2 28.2,370.9 52.0,728.0 55.1,770.2 593.1,883.1 591.7,867.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1573.0,705.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7753707,41.490411]}},{"type":"Feature","properties":{"resourceCoords":[1605.0,1067.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.775379,41.489081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0005","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1631.1,1868.3 218.9,1900.3 214.6,1410.5 209.6,1046.3 190.3,312.7 1608.6,172.9 1616.8,897.9 1620.4,1385.0 1631.0,1700.5 1631.1,1868.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[204.0,906.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82028721722703,41.49012073944541]}},{"type":"Feature","properties":{"resourceCoords":[204.0,1389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.82033134913667,41.48922172933873]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0050/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p50","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0050/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0050","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"82.7,1783.8 70.5,1263.2 72.3,1263.2 72.8,771.7 74.5,771.6 94.2,159.8 443.5,158.1 463.6,179.8 515.1,179.3 1529.7,169.5 1536.2,755.2 1533.6,755.3 1529.4,1255.2 1356.8,1257.3 1664.0,1644.0 1664.0,1779.5 82.7,1783.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0050/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[942.0,758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80246544916507,41.480676039311824]}},{"type":"Feature","properties":{"resourceCoords":[1338.0,1262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80373503256784,41.47995894603844]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0051/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p51","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0051/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0051","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"87.5,328.6 81.0,237.2 70.7,117.5 1624.2,61.4 1617.6,260.5 1609.8,260.6 1604.8,802.9 1600.2,802.9 1606.6,1394.2 1606.5,1871.2 220.5,1866.7 206.8,1732.8 204.4,1641.2 179.2,1292.2 87.5,328.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0051/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[160.0,800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7982877930494,41.485149396257086]}},{"type":"Feature","properties":{"resourceCoords":[160.0,260.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7969748353881,41.48513780431266]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0052/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p52","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0052/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0052","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1599.2,1500.4 1594.4,1896.8 695.1,1901.8 642.5,1902.1 622.1,1879.8 96.0,1880.2 94.2,1402.9 85.5,811.3 90.0,811.3 92.9,268.6 100.7,268.5 106.4,69.3 449.6,55.5 449.6,53.2 1564.0,78.1 1584.8,271.6 1594.0,752.7 1570.5,767.9 1520.8,811.1 1519.8,993.0 1598.8,1055.3 1599.2,1500.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0052/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,1875.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80094062510335,41.48160733818279]}},{"type":"Feature","properties":{"resourceCoords":[456.0,272.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79703985553573,41.481836177561]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0053/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p53","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0053/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0053","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.5,718.9 90.5,321.8 72.0,56.2 138.4,55.3 238.1,53.9 1593.8,35.0 1601.2,433.7 1602.7,698.9 1607.0,698.9 1606.8,1046.4 1625.2,1470.1 1621.0,1470.2 1629.3,1830.4 220.7,1888.3 216.1,1837.8 182.6,1469.5 127.5,718.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0053/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[176.0,1056.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79456158833824,41.48535434887407]}},{"type":"Feature","properties":{"resourceCoords":[176.0,711.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79370679127042,41.485343574999376]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0054/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p54","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0054/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0054","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.2,73.4 1560.8,458.6 1561.7,718.7 1590.3,1059.5 1579.7,1059.5 1586.7,1476.0 1577.0,1860.0 543.2,1818.1 543.2,1820.3 97.8,1829.5 96.8,1474.6 101.0,1474.6 91.3,1056.9 98.5,714.6 94.2,714.6 98.1,453.4 98.9,60.6 334.2,62.1 638.7,63.1 638.9,48.8 1555.2,73.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0054/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[546.0,1492.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7956877745448,41.481838551560784]}},{"type":"Feature","properties":{"resourceCoords":[546.0,721.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.79374830502613,41.48184377169694]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p55","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0055","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"210.1,1900.5 136.3,1897.5 146.6,1504.8 139.8,1078.9 150.6,1078.9 121.7,730.3 121.0,464.4 115.6,70.3 916.3,92.6 916.7,67.8 1618.7,74.7 1611.4,93.3 1588.7,1897.1 210.1,1900.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[910.0,604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.793414,41.478478]}},{"type":"Feature","properties":{"resourceCoords":[1606.0,1508.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7956298,41.477188]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p56","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0056","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1474.8,1978.5 1475.0,1885.7 1546.5,1833.3 1594.1,1330.9 1511.9,874.8 1555.7,190.8 1524.5,89.7 1436.7,58.1 38.6,97.2 60.0,286.8 71.5,758.5 48.5,773.4 1.0,815.2 1.0,995.2 77.8,1055.1 80.4,1491.5 77.7,1880.2 329.5,1877.5 329.9,1785.4 1444.6,1842.1 1444.4,1978.4 1474.8,1978.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1444.0,1110.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7991939,41.477244]}},{"type":"Feature","properties":{"resourceCoords":[1444.0,285.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7971496,41.4772119]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p57","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0057","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"817.1,45.0 1083.5,70.7 1173.0,84.0 1167.5,406.4 1158.5,1916.9 140.2,1822.5 132.0,84.0 817.1,45.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[132.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7920801,41.4855161]}},{"type":"Feature","properties":{"resourceCoords":[1173.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7894812,41.4855013]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p58 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.36"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6660.0"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1101.7,1230.2 1110.7,508.3 1115.9,183.6 100.9,80.1 100.9,89.2 100.2,393.1 114.7,393.3 77.0,1853.1 561.5,1859.0 642.6,1718.9 959.2,1726.8 943.3,1863.7 1009.9,1864.5 1100.2,1348.0 1101.7,1230.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79234576401267,41.48241536927168]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.78817908864252,41.48242270719837]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.78816730071938,41.47861257902134]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79233397608951,41.47860524109465]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p58 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.71"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4570.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2089.6"},{"label":"split_canvas_h","value":"5028.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1227.3,1164.5 1376.6,1220.9 1579.5,1182.2 1579.8,586.2 1503.2,245.5 1664.0,237.2 1664.0,232.2 1664.0,226.2 1201.0,227.0 1198.2,467.6 1222.9,467.5 1227.3,1164.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0058__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1142.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79228050300392,41.479339517222826]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79098552855675,41.47932811208011]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1257.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79102209719903,41.476995082397046]}},{"type":"Feature","properties":{"resourceCoords":[1142.6,1257.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.79231707164621,41.47700648753976]}},{"type":"Feature","properties":{"resourceCoords":[1227.5,1188.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7921046,41.4771327]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0059","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1585.1,135.8 1596.2,332.9 1583.2,332.9 1585.7,685.6 1588.4,685.5 1590.5,1084.2 1593.9,1084.2 1608.0,1528.0 396.4,1546.2 71.6,1547.5 111.6,1084.1 141.2,798.8 195.3,264.3 209.1,103.2 1585.1,135.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[148.0,1091.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78835596387053,41.48533518702226]}},{"type":"Feature","properties":{"resourceCoords":[148.0,1538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78946303843796,41.485358957440546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0006","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1293.0,55.6 1336.4,56.9 1564.1,38.4 1572.7,1745.5 1305.8,1726.5 1305.8,1723.3 706.9,1715.8 707.0,1729.1 195.9,1741.9 196.6,1690.1 190.9,1372.4 194.9,882.0 198.0,152.3 452.6,131.1 450.2,99.1 1293.0,55.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[193.0,1365.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81680595907925,41.48914579360869]}},{"type":"Feature","properties":{"resourceCoords":[193.0,877.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.8167803647478,41.4900485497872]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0060/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p60","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0060/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0060","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1491.2,1602.5 758.6,1616.2 119.5,1625.9 105.4,1183.2 101.9,1183.2 99.8,785.4 97.1,785.4 94.6,433.6 107.5,433.5 96.4,236.9 929.7,256.6 930.5,241.1 1600.8,172.6 1581.2,427.1 1592.8,427.1 1594.8,777.7 1597.3,777.7 1579.0,1176.4 1585.1,1176.3 1583.5,1600.8 1491.2,1602.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0060/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[912.0,784.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78750860466006,41.481130745657715]}},{"type":"Feature","properties":{"resourceCoords":[816.0,1617.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78956947719037,41.48135386556269]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0061/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p61","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0061/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0061","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"47.0,1822.0 47.5,1816.8 131.2,939.9 155.9,718.7 167.8,613.6 219.1,80.2 551.2,75.3 1594.4,61.8 1577.0,581.6 1572.5,581.6 1585.9,1093.5 1570.8,1099.0 1561.0,1185.8 1597.3,1217.6 1590.5,1647.6 1601.3,1873.0 47.0,1822.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0061/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1273.0,1222.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78449361214373,41.48288295796003]}},{"type":"Feature","properties":{"resourceCoords":[130.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78391081038511,41.484986393428336]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0062/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p62","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0062/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0062","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1461.7,1816.8 742.1,1880.5 741.0,1896.0 77.2,1871.4 67.3,1646.8 75.9,1218.5 39.9,1186.7 50.0,1100.3 65.1,1094.9 54.0,585.0 58.5,585.0 77.9,67.3 853.1,60.6 938.5,57.5 1561.9,50.5 1554.7,570.7 1559.6,570.7 1570.3,1067.4 1578.5,1067.3 1598.4,1536.9 1591.0,1536.2 1587.8,1535.0 1589.5,1822.5 1461.7,1816.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0062/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,1074.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78416835541513,41.48092203287248]}},{"type":"Feature","properties":{"resourceCoords":[808.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78168547236714,41.48089357706721]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p63","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0063","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1546.7,1649.6 1513.5,1851.9 1463.6,1897.5 1463.7,1876.1 152.2,1815.3 150.8,1530.3 154.0,1531.5 161.3,1532.3 142.2,1067.0 134.2,1067.0 124.2,574.9 119.3,574.9 127.1,59.4 1413.0,46.6 1466.0,46.2 1466.0,243.0 1512.8,242.6 1546.7,1649.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1466.0,243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7821688,41.4769936]}},{"type":"Feature","properties":{"resourceCoords":[1466.0,579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7830082,41.4770024]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0064/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p64","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0064/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0064","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"623.8,1703.1 92.3,1628.0 64.8,1628.6 66.2,1200.3 60.1,1200.4 78.3,798.1 75.8,798.1 73.6,444.3 61.9,444.4 81.5,187.6 128.2,182.8 1589.0,228.2 1589.2,249.8 1575.0,263.2 1600.5,1631.2 1549.5,1888.8 1366.0,1872.2 1347.8,1748.3 939.4,1796.9 625.1,1770.7 623.8,1703.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0064/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1556.0,1191.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78861509212791,41.477153513141864]}},{"type":"Feature","properties":{"resourceCoords":[1556.0,796.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7876433073109,41.47713216442786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0065/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p65","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0065/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0065","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1541.8,1794.9 1595.9,1276.7 1594.4,1276.7 1562.7,752.4 1574.5,752.6 1568.8,220.1 1452.9,218.3 1453.0,176.8 1246.8,175.1 1097.0,193.8 822.0,190.0 819.3,210.6 754.0,190.8 775.8,9.8 776.8,1.0 565.4,1.0 556.4,11.0 167.9,13.0 128.3,1.0 1.0,1.0 1.0,898.9 361.9,908.0 698.3,1110.5 607.0,1780.0 939.4,1784.9 1541.8,1794.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0065/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7816277,41.4847883]}},{"type":"Feature","properties":{"resourceCoords":[822.0,190.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7777041,41.4844207]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0066/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p66","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0066/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0066","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1524.0,1685.8 1553.8,1171.5 1546.4,1171.5 1541.2,649.7 1464.7,649.1 1473.0,599.5 1543.8,111.8 1550.3,70.2 623.4,62.5 1.0,59.0 1.0,100.3 115.3,101.8 122.3,631.5 110.5,631.3 143.4,1152.7 144.9,1152.7 92.4,1668.2 1305.7,1685.4 1391.2,1684.2 1524.0,1685.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0066/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1398.0,1169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7803802,41.4806456]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,91.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7777065,41.480384]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0067__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p67 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2384.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4275.6"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0067__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0067","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1051.3,57.1 888.2,57.4 846.6,409.8 796.1,871.6 733.5,1386.9 654.5,1476.7 632.4,1681.6 604.5,1940.2 670.3,1959.3 672.7,1938.6 949.0,1939.1 1099.2,1918.6 1577.1,1916.8 1594.2,1383.8 1581.7,1383.8 1567.6,868.0 1565.2,868.0 1580.1,424.5 1587.3,424.4 1574.5,56.3 1051.3,57.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0067__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[801.1,871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77508562636598,41.484181189877496]}},{"type":"Feature","properties":{"resourceCoords":[898.1,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77312843948846,41.48400020417935]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0068/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p68","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0068/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0068","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1649.0,29.1 1600.0,392.9 1561.8,598.5 1507.9,838.2 1464.7,1359.5 1400.3,1893.2 462.6,1895.8 103.2,1897.8 119.4,1363.8 106.9,1363.9 91.8,847.4 89.5,847.4 103.6,403.1 110.8,403.0 97.4,34.4 1609.4,29.5 1649.0,29.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0068/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1454.0,1351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77632738564012,41.48027617466618]}},{"type":"Feature","properties":{"resourceCoords":[1600.0,403.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77400674912613,41.480002048406234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0069/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p69","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0069/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0069","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1421.9,134.2 1563.9,111.8 1571.5,111.9 1549.9,736.9 1511.0,736.7 1561.0,1387.1 1551.8,1871.3 738.9,1873.0 576.4,1873.4 603.4,1672.1 635.9,1391.3 722.3,670.8 791.2,105.8 916.6,106.7 916.5,95.0 1421.9,134.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0069/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[561.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77307660443549,41.48404663431266]}},{"type":"Feature","properties":{"resourceCoords":[816.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.76868319329657,41.48356816710309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0007","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"358.0,184.8 777.3,148.7 1134.9,113.3 1622.7,76.2 1622.2,152.1 1612.2,1926.2 1125.5,1892.2 1125.5,1884.5 768.7,1882.2 768.7,1886.0 351.4,1908.6 351.4,1891.8 116.2,1880.0 120.7,202.2 358.0,184.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81088428814935,41.491605845645424]}},{"type":"Feature","properties":{"resourceCoords":[1599.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80972471786392,41.49159408304505]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0070/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p70","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0070/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0070","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"501.5,64.5 1193.1,67.4 1521.1,130.9 1543.0,127.2 1538.0,174.8 1534.5,393.9 1499.2,746.0 1436.2,1293.4 1367.2,1868.8 1328.0,1869.3 120.9,1876.5 128.3,1394.4 76.1,747.1 114.8,747.1 134.0,125.0 501.5,64.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0070/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[559.0,747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7703040504736,41.48139429764298]}},{"type":"Feature","properties":{"resourceCoords":[1512.0,747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77031875575686,41.479628346877824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0071/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p71","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0071/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0071","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.2,1877.4 242.8,101.3 754.5,121.4 754.4,114.1 1272.9,99.2 1272.0,23.3 1321.5,30.6 1571.5,62.1 1555.2,1934.5 1338.8,1933.8 255.4,1930.6 255.2,1877.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0071/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1285.0,51.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77905930988547,41.48047695912984]}},{"type":"Feature","properties":{"resourceCoords":[243.0,1900.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.78170741331411,41.477045787121064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0072/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p72","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0072/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0072","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1479.7,1989.9 738.2,1988.8 614.2,1985.3 448.7,1980.5 324.7,1980.5 157.9,1978.0 196.6,93.5 433.8,126.3 475.5,132.6 1003.0,198.5 1518.5,243.4 1509.4,1953.4 1529.2,1991.5 1479.7,1989.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0072/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[463.0,136.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77768574068565,41.48037184564324]}},{"type":"Feature","properties":{"resourceCoords":[1509.0,290.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77509541239705,41.48008751580488]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0073/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p73","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0073/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0073","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"911.9,1890.8 641.8,1894.6 216.8,1886.2 196.4,1847.7 196.7,116.5 436.8,170.2 642.8,208.3 1007.1,257.1 1589.0,327.9 1514.9,579.9 1520.7,1864.3 911.9,1890.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0073/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[642.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77400204846131,41.476968143716554]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7718791244516,41.476960979083614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0074/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p74","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0074/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0074","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"226.4,549.3 297.2,302.0 840.0,361.4 1189.0,394.4 1406.0,396.6 1453.2,401.4 1573.4,1099.5 1509.0,1749.4 1185.7,1861.4 241.3,1807.7 226.4,549.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0074/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[840.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77035966337694,41.47687543267983]}},{"type":"Feature","properties":{"resourceCoords":[840.0,372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77031617027947,41.47963211325081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p76 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.99"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3240.0"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"793.4,310.7 37.8,257.2 37.4,382.1 35.9,800.5 35.3,849.8 50.1,1588.6 49.2,1712.2 48.8,1784.5 776.2,1810.6 776.0,1613.1 776.0,1590.0 776.0,764.0 767.1,335.1 793.4,310.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[776.0,764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77499,41.475552]}},{"type":"Feature","properties":{"resourceCoords":[776.0,1590.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.777042,41.475584]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p76 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3240.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3420.0"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"887.1,1959.2 886.7,1932.2 1443.5,1894.0 1544.5,1835.7 1536.0,1510.3 1600.8,1430.5 1593.4,1387.1 1551.3,1370.2 1556.3,1134.1 1559.7,1134.1 1551.6,695.9 1566.4,695.6 1582.1,264.9 1584.5,117.2 859.0,78.8 856.8,171.3 857.2,294.6 853.3,677.0 842.2,1761.7 840.1,1959.2 887.1,1959.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0076__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1571.0,296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77803509278337,41.47561864489926]}},{"type":"Feature","properties":{"resourceCoords":[1571.0,708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.77906080660354,41.47562152329389]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0077/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p77","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0077/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0077","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"802.6,1994.0 798.5,1612.9 432.4,1006.6 256.2,997.5 295.4,582.1 207.1,488.4 350.8,312.1 348.1,68.0 789.2,56.6 789.5,71.6 1223.2,84.3 1570.5,87.5 1593.7,87.7 1592.6,1480.2 1580.5,1488.0 1546.2,1698.9 1254.4,1714.8 971.9,1856.2 826.3,1857.8 833.2,1984.5 802.6,1994.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0077/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[792.0,1008.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.779049,41.473895]}},{"type":"Feature","properties":{"resourceCoords":[1188.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.778045,41.475599]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0078__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p78 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"6660.0"},{"label":"split_canvas_h","value":"8072.0"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0078__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0078","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1358.1,114.5 1334.0,88.0 905.8,92.8 81.5,84.9 80.9,1468.1 68.9,1475.9 35.0,1685.3 243.8,1674.0 523.8,1517.5 523.7,1509.1 572.5,1490.2 1458.7,995.0 1393.0,945.0 1383.7,757.1 1394.8,460.5 1503.0,430.3 1478.2,155.8 1355.2,149.9 1358.1,114.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0078__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[490.0,1233.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.776057,41.473434]}},{"type":"Feature","properties":{"resourceCoords":[1334.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.773924,41.475552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0079/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p79","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0079/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0079","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"601.5,1180.3 872.9,1180.1 941.8,1091.1 1358.4,1324.2 1374.3,1302.7 1475.9,1171.7 1535.1,1041.3 1566.3,921.1 1555.5,26.4 1078.2,210.4 758.9,334.0 699.0,362.8 635.5,424.0 568.9,377.6 536.2,354.9 457.9,301.3 455.3,300.6 1.0,592.4 1.0,661.7 85.6,658.5 164.2,1340.1 601.7,1223.1 601.5,1180.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0079/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.83092377252342,41.48557316412791]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.8268867091118,41.485529359246605]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82695708321847,41.4818379768899]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.83099414663009,41.48188178177121]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0008","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1579.8,1920.5 1117.4,1882.1 1117.4,1885.6 489.1,1873.2 489.1,1875.9 39.3,1874.0 55.7,213.4 56.5,137.1 501.2,101.8 1129.9,49.9 1597.9,50.7 1590.6,806.2 1579.8,1920.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1124.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80706041841188,41.491798790980134]}},{"type":"Feature","properties":{"resourceCoords":[1573.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80596572732718,41.4917911524976]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0080/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p80","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0080/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0080","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"479.0,1830.4 703.6,1679.3 703.6,1668.5 694.2,1643.9 652.7,1535.6 660.0,843.0 660.9,58.8 1521.0,50.6 1521.2,88.3 1512.9,91.9 1573.2,1422.7 1263.8,1535.7 1270.5,1773.7 1159.8,1806.6 993.6,1722.0 658.5,1716.7 594.4,1815.3 446.8,1858.9 479.0,1830.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0080/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1081.0,843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.818733,41.478389]}},{"type":"Feature","properties":{"resourceCoords":[660.0,843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.818704,41.479152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0085/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p85","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0085/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0085","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1440.0,1712.6 587.1,1730.4 539.7,1730.8 229.6,1733.2 326.2,1334.8 295.2,1335.4 282.4,941.2 275.4,941.3 262.4,553.6 248.7,553.9 302.1,112.4 1207.3,97.6 1414.8,94.2 1418.2,321.1 1664.0,192.7 1664.0,247.9 1580.5,278.1 1609.7,1569.4 1531.2,1639.0 1577.5,1688.8 1440.7,1750.0 1440.0,1712.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0085/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1428.0,933.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81494450802207,41.47751585194601]}},{"type":"Feature","properties":{"resourceCoords":[1428.0,1730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.81688768043256,41.47757383190116]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0086/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p86","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0086/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0086","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1522.1,1703.8 1538.2,1805.2 1483.4,1810.4 1217.7,1813.7 1122.8,1844.9 897.7,1850.7 843.6,1843.8 536.7,1848.0 511.2,1819.5 473.2,1819.7 402.5,1820.3 400.8,1682.0 85.0,1288.9 261.1,1285.8 262.6,775.4 265.3,775.3 255.3,177.3 375.7,175.5 375.8,81.5 1513.2,134.2 1513.6,273.2 1544.5,273.1 1548.0,1703.6 1522.1,1703.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0086/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[75.0,1273.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80368498973377,41.47994118954043]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.80256198885021,41.477304943721506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0087/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p87","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.52"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0087/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0087","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1634.7,1385.5 1515.3,1678.3 1421.0,1694.2 1422.1,1774.2 1074.1,1859.3 768.1,1834.8 674.5,1901.6 317.7,1885.0 141.7,1793.0 175.6,133.7 254.4,52.5 779.4,35.0 1208.7,35.0 1576.8,639.4 1582.5,1020.1 1612.9,1010.5 1634.7,1385.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0087/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1568.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.779049,41.473895]}},{"type":"Feature","properties":{"resourceCoords":[253.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.7823032,41.4739308]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0009","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1122.8,1888.5 1122.8,1893.9 637.6,1897.6 637.7,1899.7 183.8,1896.6 186.2,830.7 188.0,83.0 1122.0,83.0 1592.7,75.2 1594.0,420.9 1599.4,1891.3 1122.8,1888.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1122.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.803603,41.491843]}},{"type":"Feature","properties":{"resourceCoords":[188.0,83.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.805904,41.4918717]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0099/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cleveland, Ohio | 1952 | sanborn06648_067 p99","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.49"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-17T03:12:54Z","modified":"2026-10-17T03:12:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0099/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0099","type":"ImageService3","width":1665,"height":2018},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"903.0,1848.0 815.2,1847.1 644.1,1845.5 610.9,1847.8 570.1,1864.4 547.8,1830.6 544.8,1826.1 536.8,1814.0 520.9,1790.3 510.3,1774.6 509.2,1773.8 243.7,1825.5 231.0,1857.4 120.8,1818.2 111.0,1771.1 92.6,809.1 135.8,123.2 266.5,113.8 380.1,149.3 669.9,98.0 720.0,50.1 1205.4,38.0 1389.8,65.0 1533.4,129.2 1475.7,392.4 1498.1,385.6 1646.2,727.2 1618.9,734.8 1624.1,757.2 1608.5,895.5 1605.3,898.3 1580.5,931.3 1430.6,1455.9 1406.8,1438.8 1376.8,1475.8 1664.0,1770.0 1664.0,1874.8 1532.3,1836.6 908.2,1830.0 903.0,1848.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd408m:g4084m:g4084cm:g4084cm_g06648195212:06648_12_1952-0099/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.83520498914342,41.49041077788453]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82765990879162,41.49258247667993]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.82417070928358,41.48568402692916]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2018.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.83171578963538,41.483512328133756]}}]}}]}