{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08497_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Del Rio, Texas | 1930 | 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":"26"},{"label":"placed","value":"22"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef-snap 11, georef 9, georef-street 1, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p22__1 (tier 1, 29.36548,-100.89177 +/-100m); p22__2 (tier 1, 29.36382,-100.89208 +/-255m); p22__4 (tier 2, 29.36351,-100.89256 +/-100m); p22__5 (tier 1, 29.36247,-100.89215 +/-143m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0010/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 | 1930 | sanborn08497_006 p10","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.11"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1349.7,1700.8 1523.0,1699.3 1517.5,704.6 1513.8,704.6 1471.9,187.9 1406.0,188.6 1404.5,1.0 1077.2,1.0 872.5,194.6 271.8,197.5 1.0,200.9 1.0,304.6 33.6,306.7 31.5,1519.9 1.0,1519.0 1.0,1564.5 516.5,1660.2 686.5,1685.8 849.4,1699.2 1006.8,1703.2 1349.7,1700.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0010/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9086363,29.363611]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9053253,29.3647102]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9038295,29.3612879]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.9071405,29.3601887]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0011/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 | 1930 | sanborn08497_006 p11","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"719.6,1749.2 487.3,1753.2 95.3,1750.3 106.4,705.5 102.5,705.5 67.3,162.1 433.0,164.5 977.8,168.3 1552.5,169.1 1551.1,354.2 1526.4,385.3 1527.2,717.1 1531.6,1527.0 1531.3,1668.8 1551.0,1732.0 719.6,1749.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1551.0,1732.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9013688,29.3626241]}},{"type":"Feature","properties":{"resourceCoords":[1529.0,169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9026241,29.3652545]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0012/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 | 1930 | sanborn08497_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.8,1667.6 63.2,1527.3 48.0,727.0 42.9,399.1 66.8,368.1 65.8,185.1 595.1,172.9 1135.2,169.4 1135.3,183.8 1612.0,112.0 1612.0,1662.7 1562.1,1714.8 954.9,1750.6 780.3,1826.3 100.9,1759.9 85.1,1729.8 64.8,1667.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[63.0,719.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90217895887886,29.36434936765182]}},{"type":"Feature","properties":{"resourceCoords":[63.0,181.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90258694437213,29.365275466918224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0013/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 | 1930 | sanborn08497_006 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.14"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"13.6,1675.8 54.9,1675.9 200.7,1655.0 516.0,1676.7 1117.4,1665.9 1253.3,1667.5 1612.0,1660.7 1612.0,1655.8 1612.0,1626.4 1553.9,1614.0 1590.6,578.5 1523.2,269.3 1581.0,155.8 205.8,174.4 205.3,151.7 1.0,257.4 1.0,1663.7 13.6,1675.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0013/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.8988916690464,29.366891083187905]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89574890317658,29.367919807419703]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89435878231966,29.36464851291711]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89750154818948,29.363619788685313]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0014/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 | 1930 | sanborn08497_006 p14","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.1,36.7 1288.5,37.0 427.8,18.1 91.5,61.0 19.4,226.4 40.1,1777.2 15.9,1819.1 1.0,1827.5 1.0,1828.1 162.5,1826.5 201.8,1826.1 298.3,1912.0 477.1,1912.0 477.1,1893.9 651.4,1821.8 963.6,1818.9 1249.3,1818.0 1433.6,1814.9 1341.0,1549.8 1367.0,1549.5 1368.0,1277.0 1369.1,1277.0 1382.5,1005.2 1374.2,1005.2 1366.2,745.1 1369.7,745.1 1378.8,471.9 1418.1,471.7 1361.1,199.2 1381.6,199.0 1300.1,36.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[426.0,1283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.907861,29.368768]}},{"type":"Feature","properties":{"resourceCoords":[426.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.909503,29.37245]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0015/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 | 1930 | sanborn08497_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"201.9,749.0 205.4,748.9 214.2,475.4 253.6,475.1 196.2,202.3 216.7,202.2 134.9,39.8 1111.7,16.1 1404.5,34.7 1439.1,67.8 1515.7,73.8 1501.0,162.8 1569.2,272.2 1574.5,380.9 1547.8,500.8 1586.8,1246.4 1575.5,1775.1 1612.0,1790.8 1612.0,1814.0 1427.3,1806.8 1141.7,1809.8 1036.3,1912.0 866.2,1912.0 866.1,1882.0 622.2,1816.5 622.2,1815.5 351.4,1818.4 270.8,1819.9 177.7,1554.6 203.8,1554.2 204.4,1281.5 205.5,1281.5 218.5,1009.3 210.2,1009.3 201.9,749.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[75.0,1548.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90427729237605,29.368958145101974]}},{"type":"Feature","properties":{"resourceCoords":[75.0,201.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90632201642688,29.3735600927702]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0016/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 | 1930 | sanborn08497_006 p16","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"315.1,149.4 315.0,182.4 549.9,178.4 834.0,175.7 1168.5,164.9 1502.9,166.6 1503.1,172.4 1558.0,215.6 1556.9,218.1 1587.9,518.1 1558.3,742.8 1553.7,1857.6 1360.8,1885.2 94.5,1871.3 28.7,1796.1 25.1,1321.0 112.5,1153.3 221.4,1053.2 129.4,962.6 28.8,780.6 21.8,198.5 39.0,60.0 70.0,41.0 315.1,149.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[895.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90996997535541,29.354901816973122]}},{"type":"Feature","properties":{"resourceCoords":[542.0,179.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90788403129721,29.358502814657413]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0017/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 | 1930 | sanborn08497_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"128.0,1837.0 81.8,1802.9 31.6,1648.0 40.1,1449.5 64.0,1449.8 117.4,1179.4 131.9,1090.4 139.9,1005.0 143.0,922.5 143.8,742.5 144.6,455.8 160.1,449.6 186.5,436.4 300.1,389.5 503.7,298.9 600.2,253.1 661.8,217.1 846.5,142.7 1073.6,43.3 1079.5,57.4 1306.5,101.8 1298.1,129.4 1514.1,308.6 1551.1,320.1 1477.9,469.5 1503.7,686.4 1458.3,811.5 1501.7,832.6 1526.2,941.6 1564.0,956.6 1562.2,1422.0 1494.7,1403.8 1492.3,1398.5 1183.4,1528.1 879.4,1669.1 618.6,1783.0 403.8,1878.8 390.9,1848.4 122.6,1844.5 128.0,1837.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1325.0,56.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90004843578956,29.358397521929763]}},{"type":"Feature","properties":{"resourceCoords":[268.0,1552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90749775481366,29.359983143264234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0018/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 | 1930 | sanborn08497_006 p18","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"21"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1464.3,189.2 1556.5,219.6 1542.0,208.6 1480.7,182.7 1492.6,135.6 1363.3,81.0 1153.9,196.9 1066.0,167.8 632.5,197.1 404.4,253.1 271.7,197.0 269.2,157.0 99.5,161.2 74.5,88.0 58.5,124.0 55.3,147.5 96.0,166.8 27.8,431.1 44.9,431.9 41.0,610.0 37.5,677.4 30.7,976.1 13.6,1132.0 21.1,1204.8 20.1,1225.4 1.0,1243.4 1.0,1400.7 47.4,1448.1 55.2,1755.0 86.8,1835.3 84.8,1777.6 201.6,1733.8 199.7,1728.9 417.0,1641.0 651.2,1546.9 657.9,1564.0 681.5,1564.3 804.5,1603.7 896.5,1635.6 1063.3,1700.7 1122.2,1721.8 1403.5,1813.8 1486.1,1539.1 1564.7,1300.4 1566.4,1238.7 1563.7,1218.6 1494.1,886.1 1464.3,189.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[41.0,610.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.895238,29.364839]}},{"type":"Feature","properties":{"resourceCoords":[1299.0,1171.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.895351,29.359809]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0019/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 | 1930 | sanborn08497_006 p19","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.4,1867.5 84.5,1595.6 78.7,1320.2 81.0,1038.0 81.0,762.0 80.2,449.6 361.4,442.2 462.0,442.2 607.8,442.2 665.8,424.9 683.7,416.1 907.9,286.5 972.1,249.3 1612.0,7.9 1612.0,103.0 1582.3,119.5 1572.8,1212.5 1612.0,1217.4 1612.0,1290.8 1612.0,1313.7 1127.0,1579.3 1139.5,1600.1 909.6,1736.8 657.9,1886.8 664.2,1897.8 111.0,1860.5 93.4,1867.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[81.0,1038.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.897453,29.356359]}},{"type":"Feature","properties":{"resourceCoords":[81.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8975493,29.3573836]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0002/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 | 1930 | sanborn08497_006 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1511.3,1847.2 1508.0,1288.0 1502.8,654.9 1498.1,66.9 1233.8,69.5 942.6,65.3 473.2,66.5 381.6,47.4 245.1,164.0 221.7,183.5 270.6,640.0 213.3,640.1 1.0,1152.6 1.0,1231.9 37.4,1237.6 55.9,1867.5 944.5,1853.1 1511.3,1847.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1508.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8975493,29.3573836]}},{"type":"Feature","properties":{"resourceCoords":[379.0,1286.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.899924,29.35723]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__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 | 1930 | sanborn08497_006 p20 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3795.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3856.8"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.9,1850.8 672.8,1906.4 1132.7,1863.5 1578.5,1865.1 1564.5,1022.9 1349.6,1039.4 1156.0,989.2 820.4,963.1 68.0,983.9 32.9,955.8 1.0,1009.6 1.0,1040.4 31.4,1042.0 46.4,1131.3 58.8,1241.0 84.8,1339.3 101.7,1442.5 111.9,1558.1 158.9,1871.9 268.0,1892.5 321.9,1850.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,948.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89099705383552,29.35610833011964]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,948.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88557850289617,29.359591182916684]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88320459951387,29.35674579729538]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88862315045323,29.353262944498333]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__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 | 1930 | sanborn08497_006 p20 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"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":"3795.2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"19.0,81.8 101.8,142.8 53.9,256.6 25.6,593.6 41.1,867.6 86.7,944.0 1399.0,947.8 1423.1,947.8 1468.2,876.7 1532.1,894.5 1541.8,886.7 1433.2,868.8 1379.4,558.7 1366.6,444.2 1347.5,342.3 1319.5,245.4 1304.6,136.8 1287.7,48.7 1256.5,45.0 1256.3,36.2 1255.9,18.9 1239.5,47.2 676.9,30.7 677.5,55.4 405.9,56.9 108.3,59.0 108.4,71.8 28.9,18.1 19.0,81.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0020__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89521472202047,29.35333330232452]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.88965851719261,29.356733994285587]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,948.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.8873790739018,29.353864664674024]}},{"type":"Feature","properties":{"resourceCoords":[0.0,948.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89293527872965,29.350463972712955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0021/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 | 1930 | sanborn08497_006 p21","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"351.8,40.3 527.4,95.2 527.3,100.3 806.4,97.7 1052.9,98.4 1105.0,90.6 1122.7,83.6 1583.3,115.8 1606.3,175.5 1566.2,171.1 1536.8,518.6 1581.8,978.2 1551.9,1245.6 1581.3,1415.8 1567.8,1877.8 673.6,1886.0 523.3,1851.5 335.6,1872.1 87.9,1825.6 26.5,1689.2 36.5,406.4 82.4,337.4 89.3,82.7 122.5,78.2 117.5,52.2 155.1,81.0 221.0,35.5 351.9,30.6 351.8,40.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[527.0,379.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89946035496904,29.35203554283065]}},{"type":"Feature","properties":{"resourceCoords":[808.0,377.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8982684626375,29.352130810093723]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0022__3/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 | 1930 | sanborn08497_006 p22 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.22"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2338.0"},{"label":"split_canvas_w","value":"3706.0"},{"label":"split_canvas_h","value":"5314.0"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0022__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"448.1,1912.0 791.5,1912.0 787.0,1767.2 805.9,1742.0 860.8,1776.5 879.0,1718.7 800.0,1442.9 851.8,863.2 738.5,770.1 604.4,758.3 482.7,611.7 315.8,618.0 289.3,837.3 148.4,822.4 122.9,967.8 57.2,1003.8 41.1,1864.2 287.9,1845.0 359.8,1881.8 367.7,1834.3 402.3,1761.9 448.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0022__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,584.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89130816246522,29.367015424400602]}},{"type":"Feature","properties":{"resourceCoords":[926.5,584.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89051424735763,29.365492314453267]}},{"type":"Feature","properties":{"resourceCoords":[926.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89300222414299,29.36449335125156]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89379613925058,29.366016461198896]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0003/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 | 1930 | sanborn08497_006 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"22"},{"label":"confidence","value":"1.00"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"177.8,1781.8 167.9,833.7 170.8,110.6 666.4,111.3 665.9,147.4 708.8,165.2 903.9,327.4 1048.0,453.0 1304.0,694.1 1396.0,775.7 1228.1,975.9 1038.0,1192.0 737.4,1545.4 664.2,1601.9 664.2,1779.4 177.8,1781.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1048.0,453.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8978012,29.3605025]}},{"type":"Feature","properties":{"resourceCoords":[1038.0,1192.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8989338,29.359546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0004/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 | 1930 | sanborn08497_006 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"21.6,1839.1 80.5,1835.3 326.1,1837.1 771.2,1828.0 984.3,1818.6 1125.5,1800.1 1523.3,1806.2 1504.4,840.9 1500.7,104.6 1031.9,109.5 1031.9,119.9 782.3,116.1 744.0,225.1 744.0,244.7 410.6,847.9 376.3,850.4 73.7,1623.0 1.0,1806.8 1.0,1810.7 21.6,1839.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[746.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90084313036152,29.36212781379921]}},{"type":"Feature","properties":{"resourceCoords":[1510.0,97.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.89857903831687,29.362105493241955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0005/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 | 1930 | sanborn08497_006 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1681.6 1.0,1701.4 353.3,1809.1 353.2,1819.5 913.8,1810.8 1408.9,1809.4 1513.4,1793.0 1493.7,1245.0 1480.0,690.0 1482.7,121.4 918.9,125.8 35.1,137.9 74.3,1594.9 38.4,1680.0 1.0,1681.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1480.0,690.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8973644,29.3553108]}},{"type":"Feature","properties":{"resourceCoords":[359.0,1247.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.8996418,29.3541223]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0006/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 | 1930 | sanborn08497_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"96.2,1839.0 29.2,1766.4 23.8,156.9 749.3,92.7 912.1,162.2 977.5,141.7 1331.2,135.0 1409.8,133.6 1612.0,310.3 1612.0,1564.8 1420.0,1747.2 791.7,1751.6 507.5,1755.8 507.7,1864.2 96.2,1839.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[795.0,1222.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90831126600469,29.364351593662093]}},{"type":"Feature","properties":{"resourceCoords":[795.0,1759.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.90791202379097,29.36343226882612]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0007/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 | 1930 | sanborn08497_006 p7","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,307.6 1.0,1774.0 430.3,1773.4 969.4,1772.8 1538.0,1769.0 1538.0,159.0 969.0,160.1 347.3,164.9 1.0,307.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1538.0,1769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9025783,29.3652703]}},{"type":"Feature","properties":{"resourceCoords":[1538.0,159.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9038154,29.3680329]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0008/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 | 1930 | sanborn08497_006 p8","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"592.2,140.9 1129.4,136.7 1129.3,138.6 1612.0,269.6 1611.3,1690.4 1133.9,1759.6 1133.9,1745.2 594.6,1745.8 66.0,1755.0 66.0,149.0 592.2,140.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[66.0,1755.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9025783,29.3652703]}},{"type":"Feature","properties":{"resourceCoords":[66.0,149.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-100.9038154,29.3680329]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0009/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 | 1930 | sanborn08497_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T23:16:04Z","modified":"2026-10-19T23:16:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"183.6,148.4 1.0,323.4 1.0,1856.7 230.6,1742.6 230.7,1765.1 1588.6,1768.9 1565.9,256.1 1515.8,142.4 1409.7,171.4 1249.7,116.5 1224.2,161.4 1121.6,116.7 1121.5,162.8 753.2,146.0 183.6,148.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g084971930:08497_1930-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.90017221616449,29.369606487717856]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89700898639377,29.370693890036307]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89553952844476,29.367401395698792]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-100.89870275821548,29.36631399338034]}}]}}]}