{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn05870_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Croton-On-Hudson, New-York | 1950 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"12"},{"label":"placed","value":"10"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 7, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p12__1 (tier 1, 41.19580,-73.87736 +/-428m); p12__2 (tier 2, 41.20057,-73.87762 +/-1519m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p10","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"400.9,86.2 389.4,109.3 1265.7,193.9 1265.7,179.7 1491.9,177.0 1495.0,326.5 1515.3,318.4 1467.5,812.6 1421.7,875.4 1382.2,950.4 1358.4,1013.7 1355.0,1065.3 1362.5,1114.4 1384.3,1155.2 1426.5,1199.7 1429.9,1201.6 1458.0,1218.2 1523.6,1236.6 1573.4,1240.0 1534.7,1268.8 1486.4,1320.8 1555.0,1536.4 1554.7,1553.6 1463.0,1565.2 1367.1,1624.2 1284.6,1577.4 1204.3,1605.5 1108.3,1721.5 1224.2,1822.7 549.7,1807.2 426.0,1718.8 302.0,1702.8 250.0,1754.5 131.8,1291.0 124.2,1217.9 141.3,1218.1 116.0,792.2 119.5,765.0 90.9,365.9 105.5,353.0 98.3,179.8 109.2,142.1 400.9,86.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[599.0,1230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8800379,41.1963051]}},{"type":"Feature","properties":{"resourceCoords":[821.0,706.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8810952,41.1982491]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"115.0,1338.9 73.9,1224.8 64.8,1188.8 60.0,1126.2 59.8,1122.2 58.5,1086.1 49.1,850.8 50.2,812.3 50.5,809.1 52.5,790.1 62.7,748.5 85.8,694.6 94.0,680.9 108.8,656.5 177.3,544.2 189.0,521.0 203.5,466.8 203.0,425.6 193.9,386.7 307.8,51.5 323.9,54.3 325.3,54.5 399.2,62.8 659.7,15.4 665.0,36.3 913.5,23.2 1205.5,67.5 1351.5,21.8 1524.7,30.3 1565.8,200.8 1583.2,1235.5 1572.6,1820.6 1532.7,1870.8 1331.8,1874.1 1239.6,1912.0 1224.4,1903.2 997.9,1858.7 975.2,1790.0 968.4,1741.2 940.9,1784.1 892.2,1833.8 860.1,1852.7 799.6,1868.7 752.5,1868.1 704.9,1850.7 660.4,1822.3 615.5,1769.9 567.8,1697.8 534.1,1626.0 115.6,1340.4 115.0,1338.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1594.0,1637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.87360684578854,41.198570266583765]}},{"type":"Feature","properties":{"resourceCoords":[59.0,1298.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88025106213885,41.201279788004456]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.21"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1866.7 1.0,1887.1 696.4,1660.4 690.5,1629.8 874.9,1632.7 956.6,1652.2 992.4,1677.8 1400.2,1552.8 1435.7,1492.1 1503.4,1382.1 1519.2,1355.5 1328.6,127.5 1236.7,121.3 564.0,76.0 563.3,64.8 93.6,391.8 224.2,480.2 247.2,658.3 136.1,784.8 46.4,1061.1 52.5,1841.8 1.0,1866.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1496.0,650.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.889601,41.205783]}},{"type":"Feature","properties":{"resourceCoords":[564.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8920922,41.2058194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1371.1,1737.2 754.0,1646.6 754.1,1636.2 297.1,1903.8 228.6,1849.0 63.2,1831.1 43.6,1452.5 111.8,1304.5 85.5,1214.9 164.3,1127.8 159.7,804.2 149.1,780.5 820.2,21.6 818.0,105.8 1285.2,143.8 1389.6,154.8 1425.3,160.9 1456.1,166.1 1451.0,336.4 1442.5,509.2 1439.1,578.5 1419.7,948.3 1429.7,1067.0 1472.1,1108.5 1487.8,1426.7 1475.0,1422.5 1409.5,1742.8 1371.1,1737.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[772.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.89342024395525,41.207303990288324]}},{"type":"Feature","properties":{"resourceCoords":[772.0,1112.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8928104393872,41.20664905123648]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"783.2,1811.8 759.1,1799.2 730.8,1781.0 685.1,1755.3 478.4,1645.8 496.0,1607.6 38.6,1823.4 19.4,428.5 33.1,146.3 84.2,42.0 166.8,16.6 730.9,22.8 1184.8,92.8 1454.5,58.6 1495.5,97.4 1541.0,94.9 1511.2,198.9 1530.0,298.4 1482.7,768.2 1516.1,940.0 1482.3,1161.9 1523.8,1512.6 1563.3,1576.6 1496.7,1661.8 1505.3,1716.0 1506.8,1731.2 1508.1,1745.3 1508.6,1764.4 791.9,1816.3 783.2,1811.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[743.0,1309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.89486411154597,41.20971490542163]}},{"type":"Feature","properties":{"resourceCoords":[1492.0,1780.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.89094773871284,41.21115877398666]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"448.1,384.4 477.9,304.9 511.8,319.3 1221.5,211.9 1219.6,192.9 1214.5,163.9 1201.7,110.6 1261.5,20.6 1277.1,42.0 1511.2,41.9 1567.5,131.2 1551.5,687.7 1574.9,922.8 1541.9,1068.5 1546.5,1357.8 1580.1,1396.7 1552.4,1403.9 1481.6,1687.6 1482.5,1687.9 1522.2,1696.6 1524.8,1737.3 1543.6,1801.6 1546.8,1812.0 534.3,1856.1 29.0,1643.3 68.4,1615.7 80.0,1607.3 223.2,1052.1 202.6,1041.6 284.9,900.9 290.3,905.0 334.0,752.3 320.7,725.9 335.0,668.2 403.6,496.8 448.1,384.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1103.0,1297.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88699436580099,41.20850748636771]}},{"type":"Feature","properties":{"resourceCoords":[438.0,389.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8925481540248,41.20850574701566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"76.1,1637.2 28.6,1375.3 59.4,94.2 94.3,40.0 185.3,23.4 182.8,32.6 525.7,17.4 526.8,2.9 609.8,27.2 644.2,46.3 657.1,62.4 857.0,57.0 880.6,34.1 889.1,26.2 1426.9,170.9 1407.9,174.3 1437.5,533.5 1425.1,542.4 1440.2,581.7 1446.8,620.6 1450.7,708.6 1448.1,727.0 1439.8,891.2 1441.4,931.4 1441.7,1120.8 1437.0,1316.4 1431.8,1662.4 1430.5,1828.2 1202.0,1827.7 1201.8,1842.0 318.2,1744.0 330.1,1720.9 34.9,1773.1 76.1,1637.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1439.0,1296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88245066102968,41.20275482666322]}},{"type":"Feature","properties":{"resourceCoords":[1441.0,701.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88452412389904,41.204269898621114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"35.4,1910.8 48.7,1761.3 65.5,1597.3 103.3,1255.4 126.4,1062.3 144.0,874.9 146.2,835.0 169.9,673.2 174.2,655.2 178.7,567.8 175.8,528.6 164.6,488.3 177.6,480.6 182.2,122.4 1221.2,34.8 1233.2,68.2 1265.3,165.4 1274.9,235.6 1277.3,256.1 1278.1,275.9 1603.7,995.7 1591.8,1003.0 1585.8,1006.5 1575.6,1013.2 1573.6,1014.5 1562.2,1022.1 1595.2,1139.5 1579.5,1152.0 1591.0,1396.2 1548.7,1837.8 1465.7,1900.0 1324.5,1681.1 1304.2,1610.8 1300.3,1593.7 952.8,1616.6 920.9,1639.5 883.6,1655.5 828.9,1662.8 803.4,1660.8 675.5,1640.9 632.2,1634.3 574.6,1633.7 532.9,1640.2 511.9,1646.4 476.5,1659.9 266.1,1757.2 230.2,1773.6 175.2,1801.5 145.9,1823.4 57.7,1903.8 35.4,1910.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[548.0,1294.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88088511790136,41.20388832340815]}},{"type":"Feature","properties":{"resourceCoords":[208.0,649.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88438577805208,41.20438749395304]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"435.6,1773.2 538.5,1770.8 608.9,1782.3 615.5,1783.5 629.3,1785.9 648.6,1791.0 1437.2,1689.4 1442.4,1709.8 1446.5,1724.0 1450.5,1737.1 1573.1,1739.9 1549.3,1679.7 1573.2,1579.0 1538.5,1219.5 1584.8,994.8 1556.1,831.4 1587.2,477.7 1499.8,115.2 1525.9,100.9 1459.7,43.7 1060.7,18.5 430.3,60.7 226.1,26.2 83.3,66.6 43.9,268.8 96.8,553.6 144.8,685.5 187.3,692.5 240.1,846.4 221.4,889.5 87.5,922.5 76.1,1597.9 1.0,1634.8 1.0,1665.0 260.7,1807.0 261.2,1806.3 280.1,1769.4 320.7,1777.3 388.8,1775.4 435.6,1773.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[678.0,880.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.88079883701621,41.211375986525724]}},{"type":"Feature","properties":{"resourceCoords":[271.0,1767.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8842177817743,41.20890769099722]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Croton-On-Hudson, New-York | 1950 | sanborn05870_006 p9","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.29"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T02:47:58Z","modified":"2026-10-19T02:47:58Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"396.4,175.5 1.0,208.7 1.0,223.0 66.2,294.6 32.7,392.7 35.0,662.1 102.9,886.1 83.9,1145.1 119.2,1253.1 32.9,1681.8 79.1,1837.3 301.4,1883.0 810.5,1791.4 1040.5,1818.5 1246.4,1790.3 1294.2,1826.9 1524.2,1838.2 1576.0,1721.5 1584.5,1164.0 1525.3,1032.5 1558.7,918.6 1531.0,760.3 1559.5,694.0 1559.8,107.6 1479.9,29.0 1424.6,48.0 1406.1,29.7 934.0,156.4 859.3,165.1 859.3,147.6 424.3,178.7 396.4,175.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd380m:g3804m:g3804cm:g3804cm_g058701950:05870_1950-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[875.0,373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8823794,41.1945257]}},{"type":"Feature","properties":{"resourceCoords":[603.0,373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.8832946,41.1952261]}}]}}]}