{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08497_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Del Rio, Texas | 1924 | 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":"16"},{"label":"placed","value":"13"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 7, georef 4, snap:0 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p10__2 (tier 1, 29.36103,-100.90290 +/-100m); p3__2 (tier 1, 29.36109,-100.89700 +/-114m); p8__3 (tier 1, 29.36051,-100.88978 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p10 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"17"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.0,1790.5 426.0,1810.6 386.8,1826.2 812.9,1814.2 1006.0,1808.8 1012.5,1773.3 1038.3,1770.8 1027.0,1837.3 1247.5,1834.6 1271.4,1890.5 1533.0,1791.0 1585.0,1793.7 1562.9,1785.4 1559.1,1022.2 1489.4,1021.7 1471.2,977.0 1417.5,969.3 1400.0,969.0 1400.0,966.9 1397.3,966.5 1398.1,769.2 1400.0,769.1 1400.0,767.5 1430.6,767.6 1494.7,764.6 1497.5,728.7 1562.7,710.9 1567.0,185.9 1395.1,174.1 286.6,153.8 76.5,151.4 78.8,434.4 81.4,434.5 64.0,709.6 66.9,709.7 61.8,985.1 64.9,985.1 58.7,1266.7 56.4,1266.6 67.0,1790.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1533.0,1791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.895504,29.364755]}},{"type":"Feature","properties":{"resourceCoords":[-27.0,1265.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9022025,29.3643257]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p11","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1362.5,203.2 1322.1,203.3 1341.7,477.1 1344.0,477.1 1341.7,751.3 1337.7,751.4 1356.1,1012.4 1354.9,1012.4 1352.7,1285.2 1343.2,1285.2 1342.2,1558.6 1313.0,1558.8 1427.3,1825.2 1223.7,1827.4 936.9,1826.7 111.0,1829.6 5.5,1763.7 31.4,1707.6 25.4,216.7 118.2,82.7 447.6,22.4 1424.7,51.3 1362.5,203.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[133.0,1558.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.908484,29.367483]}},{"type":"Feature","properties":{"resourceCoords":[133.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.91057,29.372081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"498.4,22.8 522.6,52.2 594.6,21.4 867.4,26.5 1158.2,46.7 1300.0,91.0 1324.2,89.0 1337.7,66.3 1441.5,75.8 1563.4,120.1 1590.2,1816.3 1422.4,1808.0 341.0,1809.0 278.6,1809.4 163.5,1543.4 192.8,1543.3 193.2,1270.5 202.8,1270.6 204.4,998.5 205.6,998.5 186.7,738.1 190.7,738.1 192.6,464.6 190.2,464.6 170.1,191.4 210.6,191.5 272.6,40.1 498.4,22.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0012/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.90689083391294,29.37410748132404]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.90062396151971,29.376285277167113]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89768088584648,29.36976257133845]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.90394775823971,29.367584775495374]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"288.3,1867.1 62.0,1864.1 41.0,1370.9 196.0,639.4 233.9,639.5 195.9,191.4 244.3,151.3 384.9,32.4 478.6,52.3 959.9,53.1 1258.5,58.6 1529.5,57.1 1531.8,660.0 1534.5,1309.2 1535.5,1882.6 954.2,1886.2 283.6,1894.0 288.3,1867.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[954.0,652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89884755816257,29.358474882195697]}},{"type":"Feature","properties":{"resourceCoords":[954.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8986475630846,29.356300032151395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p3 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"708.7,1788.3 710.6,1608.8 785.1,1552.4 1092.8,1198.2 1287.3,981.7 1451.4,790.1 725.9,210.7 725.8,213.7 226.4,146.0 216.7,826.8 216.9,1785.7 708.7,1788.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1114.0,472.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89782725446848,29.36047076297869]}},{"type":"Feature","properties":{"resourceCoords":[219.0,845.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89972548736456,29.361136145851404]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1779.7 1.0,1842.8 52.9,1839.8 301.1,1843.4 751.2,1837.5 966.6,1829.6 1109.6,1811.9 1511.7,1821.0 1499.6,845.1 1501.2,100.8 1027.3,102.2 1027.3,86.5 763.5,51.5 736.0,125.7 736.5,42.6 359.2,846.4 432.7,841.7 1.0,1779.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90041241352596,29.361759175208476]}},{"type":"Feature","properties":{"resourceCoords":[1503.0,103.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89860486417322,29.36210289136439]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"32.4,1308.2 43.3,1428.2 31.8,1718.9 99.6,1831.1 202.9,1870.1 787.0,1886.2 1540.8,1853.8 1563.5,1843.7 1583.9,1557.8 1561.5,357.2 1599.8,245.7 1612.0,244.0 1305.5,80.4 1310.7,62.7 1095.0,19.6 1086.8,1.0 1061.8,1.0 858.1,93.6 675.2,170.4 614.5,207.1 519.1,253.9 317.7,347.1 205.2,395.3 182.1,407.3 169.8,379.9 169.4,412.9 163.9,415.3 167.2,700.7 72.2,1307.8 32.4,1308.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[533.0,973.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90506322921377,29.35988084933867]}},{"type":"Feature","properties":{"resourceCoords":[533.0,1510.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90717564378724,29.35918507921468]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1571.3,425.0 1571.3,423.9 1563.2,285.2 1403.8,196.6 1413.4,128.2 1412.2,113.4 1231.3,138.6 1039.3,60.2 634.3,27.3 153.9,38.6 126.7,83.3 86.8,82.3 49.2,235.4 25.1,563.6 47.9,698.3 24.4,759.9 21.4,810.6 116.8,1066.6 62.0,1089.5 63.2,1304.8 1.0,1293.8 1.0,1318.5 35.2,1325.1 39.1,1513.6 47.1,1890.3 175.2,1858.5 178.0,1865.8 396.4,1778.8 405.7,1802.5 652.0,1738.8 651.4,1737.4 1101.1,1869.6 1103.0,1863.9 1247.3,1912.0 1332.0,1912.0 1398.5,1912.0 1468.8,1682.9 1549.0,1444.0 1551.1,1382.2 1548.4,1362.0 1519.0,1217.0 1475.3,393.1 1571.3,425.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[849.0,997.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8948547563741,29.361716995875256]}},{"type":"Feature","properties":{"resourceCoords":[186.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89926683205687,29.3626941788748]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p7 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.44"},{"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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"118.9,1420.9 82.0,1429.0 63.7,1521.2 108.6,1638.5 103.8,1780.8 196.3,1854.5 733.5,1863.8 736.0,1880.2 1502.0,1427.4 1433.8,1418.5 1421.4,1263.7 1249.4,1263.7 1229.2,1199.8 1248.6,1058.7 841.4,1027.6 822.6,1019.0 794.0,1019.0 794.0,1005.9 753.4,987.2 757.6,636.2 792.2,617.2 791.7,580.6 794.0,580.3 794.0,578.1 812.1,578.2 1083.7,546.9 1356.2,570.2 1457.7,538.6 1489.1,383.9 1531.0,321.6 1571.0,325.0 1536.2,303.8 1565.8,170.9 1612.0,152.5 1612.0,52.9 855.6,349.3 794.8,384.2 729.1,421.9 711.1,430.6 652.7,447.9 583.8,447.6 404.6,447.0 168.7,452.4 121.7,311.1 121.7,314.2 121.5,453.5 121.2,768.1 120.3,1046.0 117.0,1330.0 118.9,1420.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[391.0,769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.896408,29.357465]}},{"type":"Feature","properties":{"resourceCoords":[1471.0,-4.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.892119,29.360654]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p7 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.76"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3176.0"},{"label":"split_canvas_y","value":"2312.4"},{"label":"split_canvas_w","value":"3276.0"},{"label":"split_canvas_h","value":"1763.6"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"850.0,624.2 816.0,819.5 840.9,987.4 946.6,1015.3 1064.6,986.4 1451.5,1018.0 1489.4,1014.6 1487.1,918.8 1489.5,619.4 1192.6,620.8 850.0,624.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1191.0,918.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.898553,29.3552288]}},{"type":"Feature","properties":{"resourceCoords":[898.0,918.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.899729,29.355145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"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":"6452.0"},{"label":"split_canvas_h","value":"3947.6"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"54.5,185.4 37.3,805.8 69.0,930.2 749.8,979.9 1379.6,983.8 1419.5,947.7 1411.2,899.7 1387.2,751.1 1360.3,580.9 1348.8,463.4 1330.5,358.5 1303.2,258.8 1289.5,147.2 1272.8,61.6 1275.8,33.1 1294.9,20.4 1368.0,1.0 1279.7,1.0 1248.8,77.0 1038.8,64.9 1029.4,57.5 109.2,51.1 54.5,185.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__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":[-100.8950338428085,29.353397839316614]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88966729527873,29.3567780723145]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,986.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88731089935119,29.353895641285824]}},{"type":"Feature","properties":{"resourceCoords":[0.0,986.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89267744688097,29.35051540828794]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p8 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3903.6"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3748.4"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"35.5,1032.2 125.9,1032.1 50.2,1052.2 31.4,1064.8 28.4,1092.9 45.0,1177.1 58.7,1286.9 85.7,1385.0 103.8,1488.2 115.4,1603.8 142.1,1771.4 162.2,1879.1 227.8,1826.0 601.0,1893.0 1121.3,1901.6 1486.5,1858.3 1552.6,1887.5 1576.8,1700.3 1546.0,1315.0 1520.0,1287.4 1441.9,1290.8 1342.4,1297.3 1342.2,1295.2 1340.4,1295.2 1268.9,1030.7 883.6,986.9 134.9,996.7 40.5,1020.0 35.5,1032.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0008__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,975.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89103140189823,29.356172181488414]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,975.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88557825024562,29.359597054854625]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.8833092641717,29.356813516528454]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88876241582432,29.353388643162244]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Del Rio, Texas | 1924 | sanborn08497_005 p9","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:04:32Z","modified":"2026-10-19T22:04:32Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1639.8 1.0,1680.2 606.5,1781.6 610.2,1781.7 654.6,1781.6 897.6,1781.2 899.9,1786.8 1446.7,1798.4 1430.0,1765.9 1519.5,1768.5 1495.1,1257.2 1497.3,1257.2 1495.8,982.1 1492.8,982.2 1490.4,713.2 1487.7,713.2 1497.2,444.1 1494.7,444.1 1484.9,167.8 1423.2,168.8 1135.3,169.6 306.2,176.9 269.9,154.4 275.3,168.3 263.5,177.3 39.1,179.4 33.5,190.8 50.2,453.1 53.4,453.1 55.3,533.3 25.5,732.5 37.6,1600.1 22.9,1638.1 1.0,1639.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971924:08497_1924-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9096111,29.366726]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9033325,29.3688562]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9004336,29.3623667]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9067122,29.3602365]}}]}}]}