{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn08492_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dallas, Texas | 1905 | mapsnap generated fit (2026-10-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-24"},{"label":"run","value":"corpus-v2.2"},{"label":"pages","value":"108"},{"label":"placed","value":"69"},{"label":"unplaced","value":"39"},{"label":"fit sources","value":"georef-snap 42, georef 30, georef-street 2, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"13 sheet(s) cut into 35 panels"},{"label":"unplaced pages","value":"p0__2 (tier 1, 32.77264,-96.80983 +/-137m); p102__2 (tier 1, 32.77623,-96.80438 +/-162m); p132__2 (tier 2, 32.76088,-96.77588 +/-100m); p140 (tier 1, 32.77984,-96.78726 +/-255m); p142__1 (tier 1, 32.77165,-96.80041 +/-196m); p142__2 (tier 1, 32.77276,-96.78316 +/-199m); p149__1 (tier 1, 32.78519,-96.77366 +/-108m); p150__1 (tier 2, 32.78105,-96.78194 +/-253m); p150__2 (tier 1, 32.78201,-96.78116 +/-189m); p151 (tier 2, 32.77634,-96.78230 +/-100m); p152 (tier 2, 32.77869,-96.77970 +/-100m); p160__2 (tier 1, 32.78652,-96.76634 +/-100m); p163__1 (tier 1, 32.78102,-96.77118 +/-196m); p163__2 (tier 1, 32.78877,-96.76708 +/-183m); p167__1 (tier 2, 32.78245,-96.76590 +/-100m); p167__2 (tier 1, 32.77948,-96.76383 +/-105m); p167__3 (tier 1, 32.78085,-96.76120 +/-158m); p168__1 (tier 1, 32.76301,-96.78609 +/-211m); p168__2 (tier 2, 32.77070,-96.78128 +/-1127m); p169__1 (tier 1, 32.76677,-96.79672 +/-100m); p169__2 (tier 1, 32.76681,-96.79690 +/-100m); p169__3 (tier 1, 32.76725,-96.79668 +/-100m); p176 (tier 2, 32.74414,-96.82649 +/-100m); p177 (tier 4, 32.77222,-96.78991 +/-4504m); p178 (tier 4, 32.77222,-96.78991 +/-4504m); p179__1 (tier 1, 32.77156,-96.76445 +/-100m); p179__2 (tier 1, 32.77158,-96.76534 +/-100m); p179__3 (tier 1, 32.77248,-96.76362 +/-111m); p179__4 (tier 1, 32.77191,-96.76481 +/-100m); p179__5 (tier 1, 32.77151,-96.76526 +/-100m); p179__6 (tier 1, 32.77279,-96.76492 +/-100m); p179__8 (tier 1, 32.77105,-96.76561 +/-100m); p179__9 (tier 1, 32.77095,-96.76567 +/-105m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0101/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p101","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.11"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0101/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0101","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"780.7,64.5 953.2,45.7 1220.3,59.8 1619.0,76.0 1608.5,470.6 1607.5,492.2 1650.5,1914.1 1575.2,1884.7 989.4,1878.2 454.9,1727.5 179.8,1721.1 165.2,1036.7 94.8,906.6 59.3,518.2 152.8,96.2 780.7,64.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0101/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[781.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8069287,32.7757945]}},{"type":"Feature","properties":{"resourceCoords":[1619.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8053274,32.7761953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0102__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p102 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.39"},{"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":"6696.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0102__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0102","type":"ImageService3","width":1674,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1451.3,1741.6 1450.9,1719.2 1646.8,1606.2 1590.3,1610.6 1479.8,1619.2 1463.5,1618.2 1449.2,1617.0 1442.4,1202.7 1454.5,1005.9 1531.6,1009.7 1541.9,161.2 1515.8,156.8 1481.3,149.9 1482.2,95.6 1413.2,74.3 1408.7,134.3 1276.1,106.7 1158.8,90.7 1024.2,78.7 906.0,76.0 474.4,75.2 225.2,77.5 65.0,76.0 71.2,410.6 71.2,428.4 162.4,1631.3 175.2,1635.7 185.3,1792.9 316.1,1804.3 310.6,1289.8 265.9,1271.6 419.4,993.5 1030.0,1082.2 1099.7,1198.0 1120.0,1709.2 1451.3,1741.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0102__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[906.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.803408,32.776597]}},{"type":"Feature","properties":{"resourceCoords":[65.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8053274,32.7761953]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0103/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p103","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0103/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0103","type":"ImageService3","width":1675,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"501.7,1867.2 430.1,1849.0 369.6,1726.8 147.6,1640.0 141.1,1005.4 75.2,904.8 44.4,515.7 112.2,128.7 305.9,86.5 416.9,129.9 560.6,44.4 1483.4,133.9 1506.0,127.0 1488.2,971.0 1494.5,971.0 1483.2,1342.0 1476.8,1811.7 1231.1,1808.7 1073.5,1832.4 498.5,1884.9 501.7,1867.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0103/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1081.0,547.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8076072,32.7780901]}},{"type":"Feature","properties":{"resourceCoords":[1081.0,124.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8078333,32.7788384]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0104/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p104","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0104/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0104","type":"ImageService3","width":1675,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"217.3,1353.8 227.5,978.5 221.1,978.5 236.1,124.6 405.5,71.9 1078.3,63.0 1504.5,144.6 1505.3,594.8 1503.2,1431.6 1505.0,1829.0 1032.0,1827.5 758.8,1829.6 583.3,1827.8 212.5,1829.0 217.3,1353.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0104/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[657.0,977.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8056172,32.7777166]}},{"type":"Feature","properties":{"resourceCoords":[1505.0,1829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.803408,32.776597]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0105/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p105","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0105/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0105","type":"ImageService3","width":1675,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"255.5,1361.5 258.4,531.8 258.0,85.3 785.6,68.0 952.7,66.2 1078.0,58.5 1078.0,66.4 1463.5,67.0 1468.7,489.8 1465.9,489.8 1406.6,886.5 1438.0,886.5 1429.1,1256.2 1369.8,1256.6 1457.9,1851.7 1336.2,1844.4 1162.3,1827.3 928.2,1787.2 883.0,1778.3 808.0,1754.9 803.0,1820.1 658.9,1789.7 531.6,1772.1 385.2,1758.7 256.9,1755.5 255.5,1361.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0105/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[258.0,490.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8040734,32.7788307]}},{"type":"Feature","properties":{"resourceCoords":[258.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8042961,32.7795754]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0106/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p106","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0106/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0106","type":"ImageService3","width":1675,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"361.3,1284.3 302.0,1285.2 395.2,1879.5 759.2,1909.3 1243.8,1948.0 1287.5,1948.0 1401.3,1948.0 1401.2,1937.0 1356.1,1860.6 1400.5,1861.0 1362.0,1283.0 1343.9,1284.0 1340.2,509.5 1449.2,507.9 1448.7,86.2 1448.7,83.0 598.5,64.7 1.0,89.3 1.0,97.3 385.6,94.7 394.4,517.4 391.6,517.4 335.7,914.8 367.1,914.5 361.3,1284.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0106/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8009635,32.7802806]}},{"type":"Feature","properties":{"resourceCoords":[1362.0,1283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7991072,32.7784293]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0107/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p107","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0107/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0107","type":"ImageService3","width":1682,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"265.3,1279.3 247.0,1280.3 248.7,499.8 358.5,499.0 361.0,74.0 483.6,74.3 1521.3,103.8 1523.7,441.8 1513.1,852.8 1477.7,1214.6 1477.2,1293.8 1493.4,1694.4 1501.8,1847.6 1410.7,1830.2 1201.9,1841.3 340.2,1861.9 300.0,1862.0 265.3,1279.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0107/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1139.0,901.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7974836,32.7794743]}},{"type":"Feature","properties":{"resourceCoords":[361.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7995349,32.7805827]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0108/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p108","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0108/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0108","type":"ImageService3","width":1678,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.4,1858.4 119.8,1704.8 105.9,1303.1 106.8,1223.7 144.3,861.2 157.2,449.3 156.7,110.5 1219.5,41.6 1586.2,99.4 1583.3,285.5 1562.7,462.6 1535.8,611.4 1528.7,755.5 1529.1,1046.2 1536.3,1091.6 1569.4,1173.0 1624.9,1273.1 1498.5,1272.2 1080.5,1840.0 835.4,1842.8 170.2,1858.4 127.4,1858.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0108/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[531.0,511.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79611247345706,32.78050602080616]}},{"type":"Feature","properties":{"resourceCoords":[1306.0,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79379510876365,32.77852041415885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0109/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p109","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0109/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0109","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"46.3,1073.1 28.6,988.1 29.6,942.7 80.7,659.7 113.1,520.9 165.6,380.8 217.0,212.3 252.8,31.8 278.4,40.7 1367.2,100.5 1360.7,203.4 1577.5,245.9 1671.0,319.1 1671.0,486.9 1576.9,974.5 1671.0,1454.4 1671.0,1643.9 1659.4,1645.8 1536.8,1666.1 1457.5,1670.1 1311.2,1649.0 1208.6,1620.2 1055.1,1650.3 1072.2,1744.8 349.7,1893.8 250.4,1625.1 82.6,1180.3 46.3,1073.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0109/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[914.0,914.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79204127804961,32.78073682719762]}},{"type":"Feature","properties":{"resourceCoords":[254.0,27.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7941426593922,32.78170372605772]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0110/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p110","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0110/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0110","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"22.6,547.7 21.5,181.6 86.0,98.3 939.9,35.9 1610.4,152.5 1626.1,148.8 1615.8,545.2 1620.3,545.2 1554.8,904.2 1457.8,946.2 1470.7,974.1 1486.0,971.3 1664.0,1880.3 1664.0,1889.0 1654.0,1890.0 1654.0,1906.0 1664.0,1907.0 1664.0,1948.0 1650.0,1948.0 1649.0,1938.0 1556.0,1938.0 1552.0,1948.0 1551.0,1939.0 1522.0,1938.0 1521.0,1948.0 612.3,1948.0 564.4,1914.9 570.6,1928.5 441.4,1838.3 284.7,1468.7 249.7,1481.7 211.6,1293.7 23.4,834.6 22.6,547.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0110/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.79114859608352,32.782590558506186]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78770852596595,32.78329813705813]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78673026266263,32.77988871006791]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.79017033278019,32.77918113151596]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0111/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p111","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0111/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0111","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"62.4,1910.7 64.8,1881.7 995.1,1814.0 998.2,1898.9 1214.9,1893.8 1668.0,1847.8 1668.0,1832.0 1655.0,1831.0 1655.0,1815.0 1667.6,1814.0 1369.7,1.0 1203.2,1.0 1176.7,18.5 1080.7,79.3 944.7,144.3 811.2,181.2 73.8,263.2 23.8,253.2 23.8,253.8 23.0,998.0 29.0,1929.0 59.4,1937.3 62.4,1910.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0111/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[692.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79813456954642,32.77610406265371]}},{"type":"Feature","properties":{"resourceCoords":[89.0,196.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79833911569266,32.77717506225063]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0112/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p112","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.18"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0112/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0112","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.1,1806.7 26.1,1560.0 721.8,73.5 731.9,51.9 1050.2,53.1 1113.3,19.1 1601.5,46.4 1593.0,1287.9 1604.6,1285.5 1604.7,1375.6 1575.3,1379.5 1613.2,1908.1 1563.6,1792.2 1024.5,1906.0 651.0,1910.3 350.2,1881.1 306.4,1855.9 318.3,1833.8 276.1,1838.5 104.5,1740.1 49.5,1818.4 28.1,1806.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0112/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7984479,32.7759973]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7959748,32.7738086]}},{"type":"Feature","properties":{"resourceCoords":[1665.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7990219,32.7713745]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.801495,32.7735632]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0113/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p113","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0113/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0113","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"360.5,1414.6 345.6,1384.6 297.4,1281.9 250.1,1139.2 230.2,1002.5 241.2,262.3 261.4,201.9 165.2,199.5 166.7,161.7 168.8,101.9 209.0,103.5 1072.1,117.3 1281.5,114.5 1372.0,135.7 1370.8,197.7 1368.5,350.4 1369.3,763.0 1382.4,855.2 1413.9,948.5 1598.6,1288.4 1619.5,1322.0 568.7,1902.8 565.8,1830.5 360.5,1414.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0113/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1387.0,714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79585590799539,32.77698155690731]}},{"type":"Feature","properties":{"resourceCoords":[197.0,121.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7986622404635,32.77740505248922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0114/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p114","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0114/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0114","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1447.2,214.0 1443.2,311.8 1439.0,719.0 1438.4,1171.8 1443.0,1367.8 1443.6,1749.0 1239.8,1716.2 752.5,1714.0 505.3,1706.5 217.5,1686.2 190.8,1683.1 207.1,716.8 230.1,712.5 265.1,229.7 1447.2,214.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0114/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1439.0,719.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7942531,32.7753769]}},{"type":"Feature","properties":{"resourceCoords":[1439.0,1221.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.793487,32.774721]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0115/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p115","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0115/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0115","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1230.7,1922.5 1132.9,1918.7 1094.0,1921.3 713.0,1924.3 617.3,1908.5 531.1,1877.1 172.1,1686.6 40.5,1613.8 24.6,1605.0 24.3,1575.0 23.7,1519.2 322.4,973.3 440.9,763.1 163.1,127.4 226.2,20.2 699.2,12.4 1004.7,9.4 1639.3,3.6 1622.2,56.0 1625.7,611.9 1625.0,892.0 1630.4,1246.9 1638.1,1926.0 1230.7,1922.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0115/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[555.0,544.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79375205759116,32.77856327517359]}},{"type":"Feature","properties":{"resourceCoords":[-23.0,1592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79626296352961,32.77797769431841]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0116/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p116","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0116/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0116","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"757.8,1917.3 562.8,1923.3 111.9,1925.8 100.8,1249.9 93.6,896.7 92.8,617.9 86.5,64.7 103.3,12.4 267.3,12.0 383.0,13.0 383.1,11.7 390.6,11.7 1078.6,2.9 1079.2,53.2 1083.8,386.2 1592.6,741.1 1632.8,740.5 1666.0,765.9 1666.0,1400.5 1635.8,1431.5 1666.0,1441.8 1666.0,1501.2 1661.2,1513.0 1303.0,1913.1 1137.5,1914.2 757.8,1917.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0116/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[602.0,1908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79347927141018,32.77475221518046]}},{"type":"Feature","properties":{"resourceCoords":[602.0,600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79142421401777,32.776425864542375]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0117/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p117","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0117/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0117","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1636.6,38.4 1637.5,67.8 1599.0,62.5 1579.3,60.2 1410.8,1948.0 1375.2,1948.0 1360.0,1948.0 1364.7,1897.6 1129.7,1910.0 1129.7,1905.2 580.4,1924.7 580.4,1926.2 52.5,1921.3 78.0,1899.4 42.2,235.4 212.8,59.8 281.0,127.8 309.0,35.6 486.2,49.1 500.6,134.1 623.3,174.9 1110.4,22.6 1636.6,38.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0117/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[573.0,253.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79941534779681,32.7704753992508]}},{"type":"Feature","properties":{"resourceCoords":[573.0,1881.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7967336167876,32.76853956700468]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0118/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p118","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0118/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0118","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1276.6,1897.8 1025.7,1892.7 751.7,1883.4 706.7,1892.5 296.0,1908.5 299.1,1948.0 237.4,1948.0 127.9,78.9 147.9,78.2 150.7,78.2 187.2,77.9 277.4,73.7 274.4,62.2 1495.9,19.2 1540.5,997.3 1517.2,996.0 1512.7,1402.9 1514.6,1575.1 1508.3,1899.0 1276.6,1897.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0118/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1522.0,1884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79350324195933,32.771282107860145]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,39.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79610053565004,32.7738031303833]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0119/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p119","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.78"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0119/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0119","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"991.5,46.1 991.4,44.6 1549.0,34.4 1531.0,627.9 1543.5,627.9 1515.3,1948.0 975.5,1948.0 975.6,1939.5 233.4,1930.0 171.6,1855.3 176.9,1626.9 66.8,1494.1 76.6,648.5 93.1,586.1 150.7,596.8 110.7,454.6 173.8,178.3 314.9,148.9 456.1,31.9 991.5,46.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0119/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[991.0,621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7957022,32.7678352]}},{"type":"Feature","properties":{"resourceCoords":[424.0,621.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7964766,32.7670498]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0120/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p120","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0120/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0120","type":"ImageService3","width":1663,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1033.6,1892.1 116.5,1929.8 125.2,627.2 113.0,627.5 122.0,46.0 357.5,34.1 352.8,84.6 403.6,84.7 407.3,44.7 467.9,52.9 470.7,13.6 876.0,58.9 921.5,56.6 1188.9,106.4 1434.2,148.7 1661.4,184.1 1588.2,674.6 1522.5,1119.4 1483.8,1308.1 1434.1,1528.2 1338.2,1913.9 1033.6,1892.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0120/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1000.0,622.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79371370503928,32.76981086046885]}},{"type":"Feature","properties":{"resourceCoords":[1586.0,622.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79288895319317,32.7706228252978]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0121/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p121","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0121/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0121","type":"ImageService3","width":1665,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1491.6,1903.8 1477.2,1836.8 1474.3,1624.5 1495.5,1198.5 1523.5,540.6 1507.0,528.4 1602.0,259.9 1664.0,225.7 1664.0,1.0 686.5,1.0 657.9,30.3 688.6,40.8 688.6,101.4 683.7,113.5 318.5,521.1 149.8,522.2 117.8,729.2 118.9,1223.9 112.8,1474.8 94.3,1767.1 88.7,1817.5 495.5,1844.7 667.9,1852.4 991.5,1876.8 1491.6,1903.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0121/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1118.0,1225.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79231112923888,32.771899979269456]}},{"type":"Feature","properties":{"resourceCoords":[1118.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79328037488297,32.77111020789348]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0122/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p122","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0122/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0122","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"137.0,1772.2 585.0,1786.3 776.3,1803.0 1000.0,1827.0 1393.0,1877.8 1368.3,1512.9 1529.3,1512.7 1502.1,1070.3 1462.6,505.7 1438.2,188.5 1176.0,212.8 1077.9,217.1 923.1,210.5 920.5,78.1 837.2,1.0 370.9,1.0 370.0,14.0 283.0,15.0 281.1,1.0 280.9,1.0 280.0,14.0 271.5,13.9 272.8,78.3 298.8,97.4 212.1,147.6 123.9,414.5 140.3,426.2 126.3,1076.0 114.2,1496.8 121.5,1706.4 137.0,1772.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0122/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1492.0,1104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78973001302033,32.76958082459884]}},{"type":"Feature","properties":{"resourceCoords":[132.0,1104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79174264909526,32.77140176062939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0123/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p123","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0123/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0123","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"971.2,23.3 971.3,31.9 1510.0,21.2 1510.0,22.2 1510.0,53.9 1525.9,78.8 1534.2,557.4 1519.5,842.5 1506.7,937.8 1480.8,1134.9 1415.1,1404.5 1382.2,1652.0 1366.5,1770.0 352.9,1790.4 322.7,1739.0 174.2,1738.7 172.7,1542.3 111.6,1506.0 165.3,1064.2 83.7,946.8 111.8,853.3 142.8,871.9 161.6,848.6 155.1,697.3 87.6,676.4 163.6,581.2 92.3,395.5 153.3,431.9 161.3,177.8 230.3,28.6 971.2,23.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0123/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[393.0,791.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79311545440314,32.76460651380018]}},{"type":"Feature","properties":{"resourceCoords":[1362.0,1884.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78998453626856,32.76464141132264]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0124/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p124","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0124/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0124","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"112.5,1643.0 141.2,1368.2 140.3,1170.2 140.3,1154.9 140.1,1074.5 116.5,791.2 44.0,320.1 25.0,297.7 20.4,264.1 929.2,97.5 1235.9,76.3 1603.6,42.2 1607.9,204.8 1612.6,746.5 1612.3,1467.4 1607.9,1706.3 1238.7,1719.7 1238.9,1747.2 717.0,1795.1 716.6,1835.8 383.6,1807.4 312.8,1698.0 112.7,1713.9 112.5,1643.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0124/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[716.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79095744046035,32.76718500725842]}},{"type":"Feature","properties":{"resourceCoords":[1240.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.79011198070451,32.76781306582995]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0125/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p125","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0125/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0125","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"343.2,1948.0 463.5,1943.7 778.6,1920.5 930.3,1917.5 1204.3,1922.8 1512.7,1938.3 1659.1,1933.9 1608.6,1531.4 1582.5,1304.0 1544.2,1027.0 1521.0,828.1 1426.6,126.4 1418.0,43.9 1413.4,1.0 1397.6,1.0 1092.7,20.4 522.5,55.1 75.7,78.6 61.8,620.1 36.8,1340.4 27.9,1510.0 28.9,1700.7 343.2,1948.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0125/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[543.0,1070.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78812712322225,32.76830006992894]}},{"type":"Feature","properties":{"resourceCoords":[543.0,50.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78963685508063,32.76964156950089]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0126/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p126","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0126/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0126","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1009.0,299.2 18.4,374.5 18.8,421.1 96.3,537.4 106.3,884.6 50.3,1033.1 121.0,1867.2 1525.8,1887.7 1566.0,1276.8 1549.8,1067.2 1570.3,1016.0 1540.4,818.8 1517.2,703.4 1424.5,387.8 1613.3,384.3 1615.3,360.7 1632.0,171.6 1298.0,116.2 1235.8,1.0 1031.8,1.0 1018.2,179.5 1009.0,299.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0126/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[984.0,991.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78914245730624,32.76389117357408]}},{"type":"Feature","properties":{"resourceCoords":[984.0,455.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78996190991498,32.764556397316746]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0127/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p127","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0127/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0127","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"236.8,1262.3 213.8,1055.8 232.4,1004.5 196.3,810.7 169.6,697.5 67.5,388.8 253.8,379.1 255.1,355.8 267.5,127.8 791.8,103.8 792.8,76.3 1162.8,79.8 1165.9,201.7 1480.2,454.9 1459.3,455.7 1447.9,455.6 1540.6,1259.4 1530.3,1259.5 1497.9,1877.5 1461.3,1835.6 1303.1,1838.2 1159.4,1761.3 907.5,1849.8 806.7,1814.5 739.7,1915.8 511.9,1861.4 217.4,1867.0 236.8,1262.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0127/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[777.0,449.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78822867640879,32.76602040320738]}},{"type":"Feature","properties":{"resourceCoords":[214.0,449.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78909826587187,32.7653122607828]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0128/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p128","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0128/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0128","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1010.0,1809.4 814.5,1852.9 47.1,1802.1 161.9,1692.8 33.9,1524.6 107.1,917.8 117.3,918.4 79.7,119.9 91.0,120.8 110.6,120.5 109.4,119.4 146.3,122.3 228.4,124.6 541.0,126.4 690.8,135.3 960.6,162.0 1263.5,201.5 1408.3,208.7 1431.8,742.0 1442.9,969.3 1441.1,1129.8 1416.9,1333.6 1356.5,1771.2 1348.9,1827.9 1010.0,1809.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0128/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1450.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78414741655068,32.7679315276153]}},{"type":"Feature","properties":{"resourceCoords":[980.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78581209514245,32.7680352943232]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0129/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p129","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.60"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0129/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0129","type":"ImageService3","width":1666,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1602.0,187.4 1610.0,1814.8 1570.7,1908.5 631.9,1905.7 156.0,1776.3 153.7,1488.3 68.0,1408.5 72.8,621.4 16.4,424.4 14.4,77.0 102.7,83.6 425.4,103.4 1115.3,151.1 1578.3,186.0 1602.0,187.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0129/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[550.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78184884715664,32.76574227851772]}},{"type":"Feature","properties":{"resourceCoords":[1623.0,1821.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78281725650407,32.76224993608036]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0130/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p130","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0130/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0130","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.1,393.8 132.9,93.5 871.9,107.7 1183.5,112.5 1549.0,114.4 1536.2,819.3 1533.2,1100.2 1520.9,1623.9 1519.3,1895.8 123.6,1897.7 110.2,1927.6 101.0,1927.7 84.1,1927.8 114.2,392.5 130.1,393.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0130/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[797.0,1613.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78114867590106,32.761860637498906]}},{"type":"Feature","properties":{"resourceCoords":[123.0,1557.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78211403437062,32.76278874865871]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0131/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p131","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0131/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0131","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1640.7,1439.7 1616.0,1439.6 1638.1,1478.7 1615.5,1816.5 1530.7,1879.9 206.2,1900.7 203.9,1625.8 208.7,1096.0 207.7,811.9 210.3,98.9 542.2,100.1 785.8,98.6 822.0,127.0 943.4,117.1 1219.8,122.5 1507.5,120.8 1528.7,1097.5 1519.5,1097.5 1520.0,1270.3 1603.8,1418.2 1629.7,1417.8 1640.7,1439.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0131/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[883.0,1099.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7782092253857,32.76073675304175]}},{"type":"Feature","properties":{"resourceCoords":[883.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77671866825969,32.76199458396655]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0132__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p132 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"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":"6692.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0132__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0132","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.6,1948.0 221.1,1948.0 223.1,1918.3 1016.0,1903.1 1101.2,1839.3 1134.4,1524.2 1134.8,1483.3 1138.8,1483.3 1138.8,1482.8 1612.4,1478.0 1554.2,1142.7 1618.7,610.6 1555.3,184.8 1598.0,67.8 299.6,45.3 264.4,10.1 219.4,9.7 41.6,244.4 175.9,328.7 122.1,413.8 94.6,473.0 88.0,529.9 108.2,1605.0 99.0,1605.0 99.7,1778.8 183.9,1927.5 210.0,1927.0 220.6,1948.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0132__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[99.0,1605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7772403,32.7599287]}},{"type":"Feature","properties":{"resourceCoords":[691.0,1605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.776347,32.759179]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0133/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p133","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0133/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0133","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1618.4,1733.4 1612.4,1208.5 1606.6,1009.1 1604.7,645.3 1591.5,211.5 1551.6,209.2 1073.6,206.6 901.8,202.7 812.7,210.4 612.5,240.4 199.8,372.0 22.9,352.4 24.0,462.0 32.0,464.0 32.0,481.0 23.0,493.0 27.0,703.0 26.0,1448.0 7.0,1448.0 4.0,1426.0 1.0,1452.8 1.0,1463.0 75.0,1552.8 59.5,1685.9 213.9,1713.7 312.9,1722.7 579.0,1734.1 624.7,1735.0 707.8,1736.8 1417.7,1731.5 1618.4,1733.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0133/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[574.0,1741.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7883696661532,32.77078824451411]}},{"type":"Feature","properties":{"resourceCoords":[1597.0,1741.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78667061529048,32.769616643044145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0134/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p134","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0134/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0134","type":"ImageService3","width":1673,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1008.0,1736.0 597.8,1729.0 366.3,1722.5 83.5,1721.1 85.9,1191.5 83.2,990.3 87.2,623.1 80.9,185.4 601.0,208.0 688.3,205.1 964.9,207.5 1015.8,467.6 1556.2,473.9 1552.8,1193.0 1553.8,1746.3 1008.0,1736.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0134/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1008.0,1736.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7851027,32.768553]}},{"type":"Feature","properties":{"resourceCoords":[601.0,208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7837592,32.7711484]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0135/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p135","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0135/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0135","type":"ImageService3","width":1679,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1549.4,1774.8 1443.4,1766.0 1298.4,1752.0 852.8,1708.0 645.5,1691.4 482.8,1695.9 253.0,1716.0 196.5,1170.3 127.8,460.7 120.7,387.1 684.5,138.2 704.8,141.8 1571.4,297.1 1549.4,1774.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0135/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[253.0,1716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7842063,32.7679312]}},{"type":"Feature","properties":{"resourceCoords":[86.0,31.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7819389,32.770321]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0136/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p136","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0136/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0136","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1487.5,1886.3 1025.0,1843.0 335.8,1782.8 120.5,1765.6 137.7,273.0 176.5,279.9 646.3,364.6 649.5,345.9 1549.5,456.1 1549.5,473.5 1549.2,1026.5 1528.4,1583.0 1527.4,1889.3 1487.5,1886.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0136/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1025.0,1843.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7810424,32.7649913]}},{"type":"Feature","properties":{"resourceCoords":[1025.0,429.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7789379,32.7667961]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0137/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p137","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0137/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0137","type":"ImageService3","width":1676,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"118.5,814.6 126.8,1360.8 114.8,1910.8 859.3,1908.8 1173.3,1906.8 1541.4,1900.7 1554.5,1900.6 1545.7,173.8 1571.8,171.8 1586.0,100.7 1675.0,94.2 1675.0,32.3 1557.9,19.6 208.5,27.4 205.3,1.0 174.8,1.0 112.2,216.1 115.6,336.9 117.6,728.4 97.5,795.2 116.6,797.2 118.5,814.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0137/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[115.0,844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77825835211792,32.766050074126774]}},{"type":"Feature","properties":{"resourceCoords":[795.0,1909.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77885946850053,32.76381993803123]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0138/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p138","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0138/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0138","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1513.6,1594.4 1461.2,1680.1 1434.7,1739.8 1428.3,1802.3 1428.6,1889.5 1139.8,1896.0 862.2,1895.0 740.5,1907.0 703.6,1879.0 459.1,1884.6 139.0,1888.6 114.7,148.1 141.0,145.8 154.7,74.0 244.3,66.7 244.8,4.3 1520.0,131.4 1617.7,278.8 1625.5,810.1 1612.7,1028.2 1518.1,1103.9 1519.5,1199.6 1597.0,1274.8 1552.0,1275.2 1378.2,1512.3 1513.6,1594.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0138/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[777.0,1905.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77677362401909,32.76201097054871]}},{"type":"Feature","properties":{"resourceCoords":[111.0,1905.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77776423289141,32.7628686779224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0139/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p139","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0139/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0139","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1543.5,1585.5 1551.4,1459.2 1670.0,1440.4 1670.0,694.1 1629.9,632.7 1630.5,647.7 1545.4,515.8 1540.7,114.9 1490.5,113.4 1364.7,109.7 1285.0,98.2 1143.6,48.7 1049.1,1.0 888.7,1.0 887.3,97.3 139.7,104.5 143.0,125.0 245.8,763.1 289.1,1053.9 400.0,1749.0 406.1,1790.0 868.7,1797.8 1142.9,1712.7 1303.8,1710.2 1385.6,1723.2 1419.7,1740.0 1473.5,1775.1 1495.5,1734.7 1505.4,1713.8 1540.2,1604.3 1543.5,1585.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0139/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[231.0,664.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7914095,32.7779656]}},{"type":"Feature","properties":{"resourceCoords":[400.0,1749.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7897608,32.7765603]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0141/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p141","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.19"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0141/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0141","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1456.2,1217.3 1456.7,1191.9 1670.0,1184.6 1670.0,1138.3 1670.0,1134.9 1463.5,639.0 1464.2,240.9 1465.2,12.2 1465.2,1.0 87.9,1.0 87.8,70.5 207.1,97.2 209.9,98.2 224.5,103.3 323.7,153.1 334.4,160.4 342.1,165.7 377.3,192.9 338.4,235.7 335.6,238.8 314.4,268.8 289.5,344.9 267.4,498.8 306.9,773.3 229.1,1213.5 189.0,1213.0 188.9,1262.7 189.2,1527.0 189.2,1591.9 686.2,1948.0 1670.0,1948.0 1670.0,1663.6 1456.2,1217.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0141/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[189.0,1213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7897608,32.7765603]}},{"type":"Feature","properties":{"resourceCoords":[189.0,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7906917,32.7757825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0143/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p143","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.75"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0143/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0143","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1543.5,150.4 1545.8,1.0 1530.8,1.0 1524.7,214.2 1266.9,1.0 26.0,1.0 26.0,20.0 13.0,24.0 15.0,255.0 23.0,256.0 23.0,272.0 15.1,273.8 15.8,433.1 16.0,455.0 23.0,457.0 23.0,483.0 16.0,490.0 18.6,899.0 256.4,1456.7 236.5,1457.5 235.5,1457.5 16.4,1466.9 16.4,1472.0 16.1,1493.0 238.8,1948.0 926.1,1948.0 1318.5,1773.5 1513.6,1721.8 1601.1,1704.4 1516.3,1387.8 1521.7,1207.7 1626.7,1181.9 1603.3,416.1 1599.0,275.6 1540.9,227.6 1542.0,169.4 1543.5,150.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0143/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7855145,32.7767932]}},{"type":"Feature","properties":{"resourceCoords":[1671.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7829985,32.7746283]}},{"type":"Feature","properties":{"resourceCoords":[1671.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7860017,32.7721608]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7885177,32.7743257]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0144/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p144","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0144/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0144","type":"ImageService3","width":1671,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"25.4,1494.7 25.6,1314.1 130.1,1285.2 76.2,377.8 16.6,331.4 16.0,273.0 25.0,271.0 25.0,255.0 17.0,254.0 14.2,38.3 781.0,102.3 772.5,117.9 1312.7,178.8 1312.9,176.5 1670.0,225.6 1670.0,236.0 1654.2,234.0 1595.3,704.6 1628.2,708.7 1564.8,1224.8 1583.3,1375.0 1619.0,1477.8 1670.0,1609.8 1400.9,1649.3 1315.9,1665.5 803.4,1722.8 763.5,1726.0 290.1,1789.6 119.5,1809.5 25.4,1494.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0144/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[788.0,1728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78462716362338,32.77177303120313]}},{"type":"Feature","properties":{"resourceCoords":[720.0,1169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78384326707565,32.772548242639346]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0145/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p145","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0145/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0145","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"542.4,41.8 1538.3,86.4 1524.2,493.7 1551.5,492.6 1562.3,765.2 1561.8,979.6 1567.2,1312.4 1589.1,1390.6 1668.0,1476.0 1668.0,1548.6 1668.0,1635.9 1647.5,1644.5 1668.0,1685.5 1668.0,1948.0 1644.0,1948.0 1643.0,1936.0 1593.0,1936.0 1592.0,1948.0 222.0,1948.0 221.6,1941.4 258.5,1940.5 256.9,1876.8 53.8,966.2 38.5,969.3 24.9,941.8 121.0,897.2 177.3,536.0 172.7,536.0 172.8,138.9 542.4,41.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0145/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78813478771565,32.78319986254551]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78467156905826,32.78383200018408]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78379969486798,32.7804078820042]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78726291352537,32.77977574436563]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0146/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p146","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0146/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0146","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1668.0,1898.2 1668.0,1948.0 226.0,1944.0 226.3,1939.2 271.8,1940.2 278.5,1680.9 258.3,1637.8 278.8,1629.7 282.8,1471.2 207.2,1384.7 187.6,1306.7 190.7,976.6 196.7,764.0 192.8,493.4 165.9,493.9 190.1,90.3 227.4,92.8 1179.0,53.8 1493.8,122.2 1487.0,494.1 1485.3,1038.7 1480.3,1880.8 1636.5,1879.0 1637.3,1896.8 1668.0,1898.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0146/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[879.0,501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78325406943986,32.783199680584275]}},{"type":"Feature","properties":{"resourceCoords":[188.0,501.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78470133832933,32.782906616225226]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0147/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p147","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0147/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0147","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1625.7,1917.8 1626.2,1889.7 1288.1,1632.8 1140.9,1728.8 435.3,1948.0 204.0,1948.0 203.0,1930.0 45.6,1933.7 40.8,1085.3 36.1,536.7 38.5,161.9 44.1,163.0 418.3,40.7 690.6,95.3 1379.4,44.9 1611.7,125.0 1641.6,334.5 1659.2,1028.6 1641.6,1127.8 1628.4,1783.4 1630.7,1922.3 1625.7,1917.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0147/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[788.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7804159375821,32.7837685561948]}},{"type":"Feature","properties":{"resourceCoords":[788.0,130.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78061032957191,32.78448364029091]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0148/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p148","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0148/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0148","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"64.0,93.9 1178.6,30.9 1390.1,109.2 1387.0,114.7 1350.6,503.3 1267.5,503.9 1363.4,979.9 1432.5,987.7 1671.0,1638.3 1636.2,1636.7 1572.5,1904.1 652.0,1921.6 145.2,1869.7 135.3,1924.0 114.9,1924.0 103.0,1924.0 35.5,1862.4 34.9,1783.2 34.5,1724.4 53.4,1075.8 71.8,977.8 60.5,290.4 32.9,82.8 64.0,93.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0148/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[536.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77762706661886,32.78428810652805]}},{"type":"Feature","properties":{"resourceCoords":[1150.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77633698760965,32.78454636180744]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0149__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p149 [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":"6688.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0149__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0149","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"25.2,681.9 25.2,688.3 192.8,1048.3 120.1,1091.5 448.6,1460.4 513.4,1431.8 1074.5,1895.4 1587.7,1876.4 1610.5,1561.4 1627.7,1562.4 1597.4,1014.3 1600.1,1014.9 1671.0,1010.9 1649.8,980.3 1588.7,946.9 1610.1,570.9 1614.5,570.3 1618.8,207.0 1623.5,206.8 1613.7,54.6 453.3,41.0 232.0,92.5 154.0,147.8 127.8,503.4 46.6,678.1 25.2,681.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0149__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[25.0,1134.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77631010559574,32.78457454571076]}},{"type":"Feature","properties":{"resourceCoords":[-454.0,839.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77710096176632,32.78532696626278]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0153/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p153","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0153/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0153","type":"ImageService3","width":1677,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1529.7,207.0 1354.2,196.8 791.4,1.0 379.9,1.0 379.0,10.0 180.0,9.0 179.1,1.0 33.0,1.0 33.0,9.0 27.0,15.0 31.0,447.0 28.0,785.0 30.5,1505.0 68.2,1553.2 70.3,1818.7 70.5,1838.1 1478.8,1795.6 1590.7,1891.7 1642.9,1719.1 1598.8,1104.1 1621.2,807.9 1676.0,755.2 1652.0,733.6 1632.0,636.7 1649.1,614.4 1529.7,207.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0153/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1462.0,1536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77679065594208,32.78039962841574]}},{"type":"Feature","properties":{"resourceCoords":[1462.0,1854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77627493243628,32.780026784277254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0154/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p154","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0154/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0154","type":"ImageService3","width":1677,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1616.5,152.6 1638.9,1.0 944.0,1.0 249.0,2.0 250.0,19.0 27.0,18.0 21.0,25.0 26.0,459.0 23.0,512.0 25.1,734.6 46.6,1301.0 30.2,1294.5 33.0,1605.0 35.1,1835.5 810.1,1817.9 810.1,1812.7 923.4,1796.2 1503.5,1787.8 1620.7,1787.3 1620.3,1247.0 1622.9,1246.9 1620.0,697.8 1629.1,697.7 1612.3,152.7 1616.5,152.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0154/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[319.0,1319.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78156942696606,32.77403641272132]}},{"type":"Feature","properties":{"resourceCoords":[319.0,707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78234114769337,32.77493819869368]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0155/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p155","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0155/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0155","type":"ImageService3","width":1677,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"125.3,1805.3 128.0,1801.7 1216.0,1799.2 1360.2,1893.4 1517.6,1905.0 1611.5,1889.5 1657.0,1774.8 1675.1,1782.2 1667.0,1751.7 1676.0,1748.8 1676.0,1721.6 1591.9,1414.6 1572.0,1301.3 1576.1,1178.0 1525.3,876.2 1484.2,716.3 1451.5,686.2 1414.0,685.6 1337.8,385.1 1331.2,359.2 1266.5,102.5 1179.9,34.0 1171.9,1.0 257.9,1.0 257.0,15.0 70.3,12.5 50.2,150.4 45.9,150.6 63.8,699.2 54.7,699.3 58.5,1252.2 56.0,1252.2 57.3,1796.2 126.5,1795.8 125.3,1805.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0155/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[810.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7773961,32.7755294]}},{"type":"Feature","properties":{"resourceCoords":[810.0,138.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7794577,32.7779472]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0156/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p156","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0156/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0156","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"29.4,1574.0 45.9,1573.6 40.4,1241.1 49.4,1130.7 83.8,1017.5 109.6,723.9 109.6,564.5 85.5,527.6 49.6,517.0 50.5,217.6 50.5,210.5 1448.4,232.3 1558.3,329.9 1553.7,343.8 1622.9,572.4 1626.1,1060.0 1599.3,1410.7 1513.8,1477.5 1520.3,1811.6 1430.9,1862.6 765.8,1891.7 698.8,1812.0 369.0,1768.0 278.1,1659.8 118.1,1671.7 29.6,1604.5 29.4,1574.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0156/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77860117268442,32.778280665457466]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77628876306557,32.78060236810705]}},{"type":"Feature","properties":{"resourceCoords":[1672.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7730687354535,32.77833687418992]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77538114507236,32.77601517154034]}},{"type":"Feature","properties":{"resourceCoords":[1449.0,199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.776783,32.780436]}},{"type":"Feature","properties":{"resourceCoords":[1449.0,199.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7762684,32.7800614]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0157/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p157","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0157/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0157","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"578.4,1411.5 578.8,1390.4 235.6,861.4 162.4,880.6 27.1,349.2 268.7,231.2 397.1,162.9 497.9,115.3 648.8,80.3 1181.3,88.8 1181.9,54.9 1667.4,63.7 1671.0,76.8 1671.0,301.6 1656.6,775.1 1645.3,1515.7 1593.5,1585.5 1612.8,1790.3 1641.1,1792.3 1640.5,1832.1 1156.0,1871.5 1157.1,1831.0 1090.2,1830.8 1089.9,1848.1 570.0,1889.3 578.4,1411.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0157/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[589.0,751.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78196177563655,32.77034488591212]}},{"type":"Feature","properties":{"resourceCoords":[589.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.78280516099831,32.77129954861769]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0158/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p158","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0158/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0158","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"780.6,105.5 780.6,100.2 894.9,82.6 1481.0,69.2 1668.0,66.7 1668.0,76.2 1614.7,152.1 1578.7,1907.7 148.6,1927.2 48.1,1847.6 36.8,1863.7 30.0,1481.0 18.5,129.4 780.6,105.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0158/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.78157062337675,32.77316878639694]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77865923608968,32.77489840901044]}},{"type":"Feature","properties":{"resourceCoords":[1669.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77627391430983,32.77201958333609]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.77918530159688,32.770289960722586]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0159/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p159","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0159/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0159","type":"ImageService3","width":1670,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.7,1053.2 98.2,580.1 100.3,127.3 608.4,80.5 608.4,63.6 673.9,63.0 673.3,102.5 1146.7,58.0 1146.8,19.0 1589.2,43.7 1638.3,116.1 1624.6,1730.5 1582.5,1801.5 1378.6,1866.4 1198.8,1847.0 958.9,1914.5 954.3,1884.7 730.5,1855.5 611.2,1877.3 223.4,1939.5 224.0,1929.0 154.1,1929.8 112.5,1053.2 93.7,1053.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0159/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[105.0,1049.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77940261804349,32.767370250924934]}},{"type":"Feature","properties":{"resourceCoords":[105.0,1957.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77826116091761,32.76604303600446]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p160 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6676.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1010.7,1894.8 1012.8,1893.0 1552.8,1881.2 1597.0,1753.8 1451.5,1754.8 1462.4,1265.6 1591.5,1264.1 1568.7,134.8 1668.0,130.0 1668.0,112.9 1668.0,77.6 1065.2,82.5 1065.2,96.1 534.3,83.8 525.9,56.4 20.0,80.9 26.0,329.0 24.5,403.9 893.9,1865.0 947.8,1846.9 980.8,1837.3 1010.7,1894.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1571.0,1287.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.76536729904788,32.78538305240947]}},{"type":"Feature","properties":{"resourceCoords":[1067.0,73.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7679825934607,32.78632272813984]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p160 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5571.6"},{"label":"split_canvas_w","value":"3454.0"},{"label":"split_canvas_h","value":"2224.4"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"621.3,1460.7 492.7,1461.1 481.5,1948.0 626.6,1948.0 767.7,1823.3 750.9,1724.2 656.5,1693.3 624.0,1599.5 621.3,1460.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0160__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1392.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76643110113257,32.78472889715096]}},{"type":"Feature","properties":{"resourceCoords":[863.5,1392.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7650997322972,32.78583855922571]}},{"type":"Feature","properties":{"resourceCoords":[863.5,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76425477474734,32.785111889370306]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76558614358271,32.78400222729556]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0161/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p161","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0161/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0161","type":"ImageService3","width":1672,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1627.8,1899.2 1095.1,1886.2 1086.6,1858.7 417.9,1890.3 26.8,1016.7 26.6,837.2 26.6,738.1 46.5,719.6 71.9,151.0 223.7,80.9 944.0,15.1 1599.2,30.2 1601.4,537.3 1620.2,634.5 1620.8,1067.7 1624.3,1625.1 1627.8,1885.5 1627.8,1899.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0161/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[892.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.77180038137452,32.78769120973598]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1080.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.76920844919673,32.787332886663435]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0162/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p162","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0162/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0162","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"711.5,1873.0 108.6,1880.6 103.7,1621.1 97.2,1065.5 94.4,633.8 75.0,537.1 70.2,31.7 1578.5,58.2 1633.0,183.2 1602.8,1877.8 711.6,1925.5 711.5,1873.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0162/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1176.0,1871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7663261,32.7876708]}},{"type":"Feature","properties":{"resourceCoords":[1176.0,94.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.769,32.789993]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0164/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p164","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0164/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0164","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"616.3,96.7 615.8,99.4 621.3,169.4 634.2,169.2 651.1,147.8 682.9,86.6 1055.4,99.7 1056.0,104.0 1415.7,100.4 1416.0,105.0 1566.3,92.0 1567.5,206.6 1668.0,178.8 1668.0,219.7 1563.8,420.6 1507.8,1381.2 1636.5,1440.7 1654.9,1449.1 1544.6,1673.9 1508.3,1740.2 1514.7,1853.6 1064.4,1847.9 1064.5,1856.0 620.0,1848.5 620.0,1834.3 101.0,1833.4 101.0,1828.0 32.4,1829.5 32.1,1800.6 97.9,1798.8 73.2,1027.5 133.7,732.0 61.3,535.4 74.5,138.6 616.3,96.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0164/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[101.0,1828.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7698584,32.7821067]}},{"type":"Feature","properties":{"resourceCoords":[619.0,506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7722062,32.7837373]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0165/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p165","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0165/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0165","type":"ImageService3","width":1669,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1515.9,56.5 1584.0,54.2 1590.6,561.1 1595.1,737.0 1586.6,1082.2 1609.2,1189.7 1613.6,1570.5 1630.7,1656.9 1637.3,1808.8 1465.6,1829.2 1332.2,1898.2 1291.8,1825.7 1228.7,1870.7 1136.8,1807.9 808.0,1810.0 630.1,1886.3 66.4,1866.6 94.7,84.3 1515.4,27.8 1515.9,56.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0165/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[590.0,756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.76911553991425,32.7799861129391]}},{"type":"Feature","properties":{"resourceCoords":[1095.0,756.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.76876368066581,32.78085458161871]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0166/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p166","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0166/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0166","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.0,82.3 597.6,83.0 597.7,97.0 1036.7,104.2 1036.6,96.1 1481.4,101.5 1571.5,1680.8 1627.5,1689.6 1661.0,1696.3 1661.0,1760.9 1394.8,1817.6 1254.8,1746.9 777.6,1880.5 511.6,1781.2 119.2,1823.6 114.4,1672.3 98.3,1586.1 97.9,1207.1 76.6,1099.9 88.7,756.5 86.1,581.5 85.0,82.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0166/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,746.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7681244,32.7826306]}},{"type":"Feature","properties":{"resourceCoords":[85.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7698584,32.7821067]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p170 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"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":"6668.0"},{"label":"split_canvas_h","value":"7796.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"817.7,1932.3 831.3,1926.8 1228.0,1895.2 1305.5,1830.8 1324.8,1781.9 1392.5,1418.5 1417.9,1387.5 1452.0,1387.5 1564.0,1329.2 1608.8,1210.0 1616.5,381.8 1644.6,357.4 1634.4,331.4 1637.5,107.2 1587.6,107.1 1423.8,32.5 82.4,68.3 58.4,1603.4 109.0,1894.0 438.2,1892.4 776.3,1894.2 776.5,1931.2 817.7,1932.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[102.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8141569,32.7512209]}},{"type":"Feature","properties":{"resourceCoords":[1257.0,1894.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8116709,32.7512231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p170 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5509.6"},{"label":"split_canvas_y","value":"5550.0"},{"label":"split_canvas_w","value":"1158.4"},{"label":"split_canvas_h","value":"2246.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1398.4,1658.3 1382.2,1881.7 1407.4,1919.8 1645.3,1926.4 1635.5,1463.5 1429.5,1421.5 1437.7,1660.6 1398.4,1658.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0170__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1377.4,1387.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.81093537416402,32.754946031322845]}},{"type":"Feature","properties":{"resourceCoords":[1667.0,1387.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.81031162880629,32.75497703846073]}},{"type":"Feature","properties":{"resourceCoords":[1667.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.81024013351647,32.75396109810666]}},{"type":"Feature","properties":{"resourceCoords":[1377.4,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.8108638788742,32.75393009096877]}},{"type":"Feature","properties":{"resourceCoords":[1410.3,1453.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.810856,32.7548302]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0171/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p171","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0171/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0171","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1615.3,1907.7 86.1,1904.3 44.4,722.2 37.0,723.5 35.8,397.2 38.0,62.0 74.6,61.8 75.8,21.0 105.1,28.0 1575.2,38.7 1626.7,97.9 1645.2,84.6 1642.8,593.2 1644.0,735.4 1640.2,1068.5 1642.5,1846.8 1637.5,1858.2 1636.9,1873.6 1625.1,1885.7 1615.3,1907.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0171/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1624.0,1423.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8156528439899,32.74832000614012]}},{"type":"Feature","properties":{"resourceCoords":[50.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.81270769443145,32.75119983726609]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0172/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p172","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0172/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0172","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"359.0,1948.0 275.8,1948.0 275.7,1929.5 67.9,1907.7 30.7,1888.6 30.6,1872.8 35.7,1861.3 29.9,1079.5 32.3,744.8 30.5,602.0 30.6,91.0 93.6,45.0 1592.7,56.6 1540.8,108.7 1607.8,205.0 1631.1,665.1 1596.3,1756.0 1666.0,1788.9 1666.0,1848.2 910.4,1859.3 921.7,1877.7 881.9,1904.5 843.1,1840.7 359.0,1948.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0172/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[51.0,1432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.81564505832735,32.748254903143554]}},{"type":"Feature","properties":{"resourceCoords":[51.0,69.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.81269919548565,32.74824964969628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0173/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p173","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0173/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0173","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"152.8,337.8 109.8,332.9 251.2,96.1 194.5,62.5 223.1,49.6 289.1,20.0 1313.5,15.1 1594.3,37.5 1623.0,82.3 1651.2,67.5 1634.3,108.9 1635.0,272.4 1646.4,1034.6 1644.4,1487.7 1646.2,1854.0 1574.1,1921.0 1128.0,1928.7 50.3,1892.8 47.5,1008.1 21.0,993.6 20.0,931.0 26.0,930.0 26.0,912.0 21.0,911.0 21.0,882.0 26.0,881.0 26.0,836.0 21.0,835.0 19.6,810.9 152.8,337.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0173/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[256.0,1087.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.82173230988886,32.744036503277975]}},{"type":"Feature","properties":{"resourceCoords":[1625.0,1087.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.81919582527617,32.745324276257364]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0174/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p174","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0174/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0174","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"906.8,1912.5 91.7,1918.1 36.2,1877.2 38.2,1514.2 45.0,1065.2 41.5,309.7 42.5,147.7 89.9,34.8 1507.0,47.1 1600.7,105.0 1615.8,485.6 1666.0,516.6 1666.0,559.9 1488.0,1067.0 1414.2,1066.3 1415.9,1113.8 1437.2,1113.9 1052.1,1755.0 1101.0,1786.6 906.8,1912.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0174/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1412.0,365.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8174791,32.74784]}},{"type":"Feature","properties":{"resourceCoords":[44.0,1091.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.8191869,32.7453849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0175/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p175","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0175/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0175","type":"ImageService3","width":1667,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"298.4,212.6 280.7,173.2 820.0,26.5 842.2,13.2 851.0,13.0 864.0,17.0 907.8,16.6 910.8,98.1 1212.0,25.6 1600.8,79.3 1606.5,1897.8 87.2,1897.7 36.4,285.9 25.4,278.3 25.3,212.5 298.4,212.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0175/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.8223886383227,32.74562451620661]}},{"type":"Feature","properties":{"resourceCoords":[1667.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.82237083084793,32.74256078383761]}},{"type":"Feature","properties":{"resourceCoords":[1667.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.82659978491802,32.742543148950936]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1949.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.8266175923928,32.74560688131994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0179__7/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dallas, Texas | 1905 | sanborn08492_006 p179 [7]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"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":"3864.0"},{"label":"split_canvas_w","value":"3842.0"},{"label":"split_canvas_h","value":"1560.0"}],"created":"2026-10-24T15:04:54Z","modified":"2026-10-24T15:04:54Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0179__7/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0179","type":"ImageService3","width":1662,"height":1949},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"228.3,1013.9 144.1,1012.8 90.6,1075.2 81.4,1354.2 881.5,1354.6 928.2,1028.7 832.6,1090.6 681.2,999.0 579.8,1097.7 359.4,1052.5 311.0,1120.4 228.3,1013.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd403m:g4034m:g4034dm:g4034dm_g08492190502:08492_02_1905-0179__7/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,966.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76625738723979,32.77116644853355]}},{"type":"Feature","properties":{"resourceCoords":[960.5,966.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.7648135448136,32.77241380485496]}},{"type":"Feature","properties":{"resourceCoords":[960.5,1356.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76421124991535,32.77192133053903]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1356.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-96.76565509234153,32.770673974217615]}},{"type":"Feature","properties":{"resourceCoords":[79.0,1020.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.7660553,32.7712008]}}]}}]}