{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09438_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Parkersburg, West-Virginia | 1916 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"56"},{"label":"placed","value":"38"},{"label":"unplaced","value":"18"},{"label":"fit sources","value":"georef 20, georef-snap 14, snap:0 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"11 sheet(s) cut into 29 panels"},{"label":"unplaced pages","value":"p24__1 (tier 2, 39.26196,-81.55579 +/-138m); p25__1 (tier 1, 39.27420,-81.55897 +/-186m); p25__2 (tier 3, 39.27650,-81.55883 +/-566m); p26__1 (tier 1, 39.28388,-81.54645 +/-233m); p26__2 (tier 1, 39.28308,-81.54788 +/-101m); p26__4 (tier 1, 39.28286,-81.54823 +/-100m); p27 (tier 3, 39.29284,-81.55813 +/-566m); p28__1 (tier 2, 39.27251,-81.54888 +/-100m); p28__2 (tier 1, 39.25992,-81.55653 +/-100m); p28__3 (tier 1, 39.25983,-81.55600 +/-100m); p28__4 (tier 1, 39.25939,-81.55608 +/-100m); p29__1 (tier 1, 39.25248,-81.53462 +/-123m); p29__3 (tier 1, 39.24503,-81.52897 +/-129m); p30__1 (tier 1, 39.27912,-81.55062 +/-157m); p39__1 (tier 1, 39.25494,-81.56477 +/-408m); p7__2 (tier 1, 39.26605,-81.56607 +/-195m); p8__2 (tier 2, 39.26895,-81.55977 +/-153m); p9__2 (tier 1, 39.26344,-81.55847 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1594.0,1906.7 1594.0,1893.0 1612.0,1892.0 1612.0,1845.2 1574.6,1838.5 1361.0,1836.7 1337.0,1786.9 1432.4,1786.4 1419.5,1482.6 1415.2,1267.8 1594.1,1260.4 1588.8,1214.2 1467.2,988.5 1483.3,980.1 1059.6,242.1 1308.8,1.0 1284.6,1.0 1240.8,29.9 1125.7,131.9 821.8,1.0 485.1,1.0 1.0,238.7 1.0,256.4 80.4,255.9 86.1,970.6 93.8,1249.8 92.0,1687.5 107.0,1846.7 106.9,1850.2 1594.0,1906.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1404.0,1266.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55583396481958,39.26250430053423]}},{"type":"Feature","properties":{"resourceCoords":[98.0,264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55560603591654,39.26551787839247]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"451.6,840.0 471.6,851.1 146.1,939.0 159.4,1763.2 415.9,1769.5 1139.8,1787.5 1400.3,1767.0 1452.4,1762.9 1431.1,751.6 1426.0,752.0 1406.5,581.8 1388.9,553.9 1453.3,510.6 1399.3,405.6 1361.9,332.5 1348.0,305.5 231.0,301.9 226.1,478.9 1.0,479.3 1.0,590.9 56.0,621.3 253.7,876.6 399.1,844.0 451.6,840.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[226.0,236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5533319696692,39.26519933726057]}},{"type":"Feature","properties":{"resourceCoords":[136.0,1763.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55521914956375,39.2626985798366]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"78.3,1546.3 1.0,1543.7 1.0,1676.5 22.8,1667.4 67.7,1848.6 183.8,1873.7 534.4,1833.9 1181.3,1873.7 1231.5,1824.5 1536.5,1744.3 1504.9,1379.2 1538.6,1369.8 1479.8,579.3 1440.5,578.0 1448.9,24.3 974.9,14.3 957.5,1.0 850.4,1.0 627.5,117.1 463.6,207.2 327.9,274.4 258.7,268.7 271.4,302.4 202.6,338.2 216.9,368.0 217.3,539.5 222.4,539.6 130.5,1548.1 78.3,1546.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[649.0,111.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.54993232554143,39.263772369128105]}},{"type":"Feature","properties":{"resourceCoords":[244.0,306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55102587984861,39.26369532381869]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p13","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"127.1,1467.8 161.7,1457.6 92.5,645.4 52.0,644.5 54.6,74.9 645.0,81.0 1268.4,95.1 1264.1,147.4 1500.5,622.9 1562.0,600.6 1596.5,971.1 1547.2,1800.1 1467.1,1776.0 1333.9,1858.9 1067.3,1820.4 649.8,1879.5 341.5,1794.1 163.7,1842.9 127.1,1467.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[645.0,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5467251,39.2629941]}},{"type":"Feature","properties":{"resourceCoords":[1489.0,1434.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5460134,39.2601138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1112.3,1812.9 806.0,1820.0 505.3,1814.9 204.0,1820.0 219.4,1337.2 204.6,809.5 207.9,809.5 226.0,127.7 362.5,50.4 547.0,45.3 749.0,185.7 1172.3,107.1 1361.0,10.4 1419.4,813.8 1421.3,813.8 1409.4,1520.5 1408.3,1820.4 1112.3,1812.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[204.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5563912,39.2715262]}},{"type":"Feature","properties":{"resourceCoords":[806.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5551015,39.2710145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p15","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.0,1190.4 1281.3,1637.5 1160.3,1856.8 611.9,1550.2 351.9,1402.0 67.0,1258.8 131.7,1136.1 311.0,843.8 308.7,729.7 310.2,64.8 613.9,59.3 917.0,64.0 1225.8,56.4 1524.1,63.6 1518.7,118.0 1516.3,419.1 1522.0,852.0 1521.8,932.9 1518.0,1190.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1522.0,852.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5546771,39.2692074]}},{"type":"Feature","properties":{"resourceCoords":[917.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5551015,39.2710145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p16","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"776.4,1852.5 776.9,1863.8 253.3,1883.7 253.5,1824.4 248.2,1393.4 250.9,1093.5 256.3,1039.3 257.3,738.4 269.0,29.0 1376.5,16.9 1368.2,265.6 1367.4,391.0 1360.0,532.0 1353.4,1242.3 1356.8,1537.9 1359.2,1763.3 1373.6,1856.0 1379.2,1912.0 1341.1,1912.0 1338.5,1887.0 776.4,1852.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1360.0,532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.550901,39.2704047]}},{"type":"Feature","properties":{"resourceCoords":[269.0,29.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5526785,39.2721603]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"781.7,1882.4 783.5,1874.1 1334.7,1903.3 1350.3,1912.0 1515.4,1912.0 1565.0,1703.2 1410.2,79.2 852.6,40.2 852.9,51.5 333.1,66.7 332.8,87.9 326.6,342.4 88.5,782.1 1.0,937.1 1.0,1018.5 42.9,1044.0 243.4,1148.6 514.0,1306.0 329.8,1633.1 781.7,1882.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[531.0,1295.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55564684051583,39.266890498935034]}},{"type":"Feature","properties":{"resourceCoords":[-27.0,1004.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55653597960233,39.2678453219791]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p18","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.7,1513.8 115.8,969.1 23.2,965.5 352.7,432.0 375.8,433.1 383.6,82.1 1558.0,135.1 1555.9,210.7 1585.8,358.9 1573.7,364.4 1556.2,644.1 1459.7,695.8 1411.7,837.4 1397.4,1035.7 1335.7,1111.6 1466.0,1364.5 1515.5,1350.2 1513.7,1745.8 1170.2,1827.6 1168.8,1766.2 649.5,1756.8 391.8,1771.7 392.0,1763.3 128.9,1789.8 130.7,1513.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[652.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5445496,39.2671985]}},{"type":"Feature","properties":{"resourceCoords":[1164.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5434338,39.2668081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"761.9,1780.1 175.5,1797.5 166.0,1539.0 128.8,953.0 152.1,419.6 157.9,155.2 158.1,147.6 421.6,125.1 421.3,133.5 679.4,122.7 1198.8,140.4 1199.2,201.8 1544.0,125.3 1542.5,202.4 1468.8,234.3 1457.7,318.6 1509.8,430.3 1384.6,1210.3 1389.2,1209.4 1399.1,1288.5 1399.0,1489.4 1381.5,1769.4 761.9,1780.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[755.0,1782.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.54674210648318,39.26299603140158]}},{"type":"Feature","properties":{"resourceCoords":[688.0,960.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.54610831344979,39.26444126868128]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1210.0,1795.9 331.3,1824.8 159.1,1772.8 166.3,290.6 162.4,290.5 180.4,245.9 492.7,257.9 815.7,256.8 897.6,253.7 1152.4,259.0 1156.5,206.8 1190.5,167.8 1430.0,169.3 1420.1,386.6 1410.8,915.0 1422.7,1691.5 1210.0,1795.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[789.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.56474580358329,39.264881351293624]}},{"type":"Feature","properties":{"resourceCoords":[174.0,1502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.56683084701088,39.26509790514551]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p20","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"170.6,1728.8 131.3,924.0 136.0,921.7 25.6,476.4 158.0,267.8 159.4,247.1 187.1,246.1 188.0,153.0 657.9,169.2 1154.1,173.0 1350.7,165.2 1547.0,170.3 1547.0,851.5 1554.2,1179.7 1559.2,1180.0 1562.2,1403.2 1612.0,1405.5 1612.0,1609.3 1533.0,1747.0 1276.2,1743.6 172.5,1728.8 170.6,1728.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1533.0,1747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5497491,39.271028]}},{"type":"Feature","properties":{"resourceCoords":[188.0,153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5509963,39.2747915]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p21","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"573.1,148.5 1048.1,138.9 1546.5,138.4 1538.8,428.9 1534.7,828.0 1542.3,1766.7 81.7,1752.5 161.4,1612.3 160.7,1405.2 110.1,1403.1 106.2,1176.2 101.1,1175.8 92.6,842.3 90.0,150.0 573.1,148.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1056.0,1762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5476851,39.2702302]}},{"type":"Feature","properties":{"resourceCoords":[90.0,150.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5480694,39.2736619]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p22","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"148.1,1912.0 175.8,1912.0 176.5,1818.4 648.8,1833.5 1147.5,1836.0 1345.0,1827.6 1542.2,1832.2 1526.0,1388.0 1523.2,956.7 1521.5,624.2 1524.2,349.6 1513.5,73.5 242.8,68.6 1.0,69.1 1.0,134.1 43.2,139.3 224.5,512.4 151.1,677.6 202.0,1065.5 148.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,70.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5482392,39.2773577]}},{"type":"Feature","properties":{"resourceCoords":[1526.0,1388.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5476394,39.2744157]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p23","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"69.8,1384.7 68.7,952.8 68.2,619.7 72.0,344.7 62.4,68.2 1229.8,77.2 1265.8,65.3 1587.8,231.4 1587.3,295.6 1593.5,1208.8 1599.0,1824.7 1526.6,1825.3 1033.1,1823.4 562.8,1830.5 84.3,1829.7 69.8,1384.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1044.0,1224.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5453738,39.2739019]}},{"type":"Feature","properties":{"resourceCoords":[557.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5452288,39.2762141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0024__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p24 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4092.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0024__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"469.4,350.7 454.3,394.1 292.0,324.0 203.8,517.0 85.1,792.8 1.0,752.9 1.0,807.5 189.3,900.1 219.7,922.1 199.7,963.7 177.3,969.0 204.8,983.6 920.9,909.9 1077.7,919.6 1065.5,985.5 1126.2,1017.5 1321.7,1021.5 1541.0,936.2 1583.5,575.5 1544.4,262.2 1612.0,219.4 1612.0,106.2 1612.0,47.3 1475.2,65.8 737.2,89.0 457.9,97.8 469.4,350.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0024__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[66.0,836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.556908,39.261874]}},{"type":"Feature","properties":{"resourceCoords":[292.0,324.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5558225,39.2624855]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0026__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p26 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.14"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4742.0"},{"label":"split_canvas_y","value":"3642.0"},{"label":"split_canvas_w","value":"1710.0"},{"label":"split_canvas_h","value":"2178.8"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0026__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1611.5,1090.7 1557.5,1131.0 1395.1,998.7 1263.9,1006.1 1215.1,1404.9 1470.3,1368.2 1454.7,1298.4 1546.6,1275.0 1612.0,1193.7 1612.0,1144.2 1611.5,1090.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0026__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1185.5,910.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.5477970589576,39.28410695229791]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,910.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54697971785924,39.28363126138146]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1455.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54775680215742,39.282819991172396]}},{"type":"Feature","properties":{"resourceCoords":[1185.5,1455.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54857414325578,39.28329568208885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0029__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p29 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.58"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2788.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3664.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0029__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"729.6,1368.4 833.2,1817.7 1516.9,1781.1 1568.5,1692.8 1574.2,988.6 1527.2,177.1 1360.8,135.7 1152.8,211.8 1054.8,147.2 836.6,145.2 843.6,229.9 737.2,429.4 785.5,892.0 729.6,1368.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0029__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[845.9,1197.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5306348,39.2463216]}},{"type":"Feature","properties":{"resourceCoords":[845.9,1748.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5300528,39.245407]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"208.0,945.1 199.7,425.0 202.2,210.8 202.3,189.3 841.1,299.7 841.0,301.6 1325.8,298.5 1396.3,298.1 1408.1,889.2 1456.8,888.7 1565.0,988.7 1508.5,1072.5 1510.3,1459.8 1162.6,1584.9 1065.1,1703.4 838.9,1752.5 286.6,1686.8 245.5,1708.8 208.0,945.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1459.0,904.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.56223898349165,39.26201834188079]}},{"type":"Feature","properties":{"resourceCoords":[217.0,1469.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.56502556103194,39.263341560153826]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p30 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1854.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4597.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1291.7,1862.2 1327.2,1888.5 1419.0,1711.7 1452.1,1649.2 1543.8,1500.3 1542.8,1442.4 1544.2,1104.5 1552.2,857.2 1544.8,586.9 1546.5,586.9 1556.0,237.7 1548.3,241.9 1489.3,159.9 1433.0,189.0 1369.5,155.1 1147.9,131.9 966.8,154.5 921.5,123.7 706.6,446.9 599.5,556.4 516.1,720.1 520.8,859.3 602.0,933.5 614.8,933.5 614.9,933.5 614.8,945.2 631.5,960.5 677.8,1099.0 658.8,1558.6 707.8,1637.5 762.5,1613.5 809.1,1704.0 913.5,1614.6 972.6,1645.6 966.1,1688.0 1286.9,1855.2 1291.7,1862.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[463.6,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55851781345676,39.276908334815204]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55374009793275,39.27498867490406]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55783616835974,39.26879267464948]}},{"type":"Feature","properties":{"resourceCoords":[463.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.56261388388376,39.27071233456063]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p30 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.55"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3734.0"},{"label":"split_canvas_w","value":"2459.6"},{"label":"split_canvas_h","value":"3918.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"609.1,1750.2 577.7,979.4 504.6,1019.2 461.7,958.8 33.1,993.9 34.8,1866.9 191.3,1841.5 222.7,1870.8 461.7,1877.7 522.7,1843.0 519.4,1795.4 609.1,1750.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0030__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,933.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55114057924825,39.281742991983194]}},{"type":"Feature","properties":{"resourceCoords":[614.9,933.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54854772814488,39.28072554574651]}},{"type":"Feature","properties":{"resourceCoords":[614.9,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55062757187746,39.277504771673335]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55322042298083,39.278522217910016]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p31","metadata":[{"label":"streets","value":"20"},{"label":"intersections","value":"32"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"201.8,1802.5 122.0,988.5 141.3,988.1 131.6,912.8 130.2,649.4 135.7,290.1 139.8,218.8 140.7,155.4 145.6,29.7 275.9,29.0 1005.2,25.3 1233.3,24.2 1570.3,24.7 1574.1,201.7 1562.5,201.7 1408.2,477.7 1454.9,477.5 1474.4,751.6 1479.7,894.6 1484.7,1027.8 1489.0,1296.9 1525.2,1590.7 1537.8,1720.4 1294.5,1742.2 1284.1,1735.9 1230.9,1741.8 1122.4,1814.5 1043.6,1869.9 977.9,1912.0 941.7,1912.0 922.9,1875.3 903.6,1837.6 896.5,1823.6 320.5,1820.8 317.8,1912.0 176.1,1912.0 176.7,1909.4 176.8,1908.9 201.8,1802.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1005.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5482725,39.2673564]}},{"type":"Feature","properties":{"resourceCoords":[1005.0,1463.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5497317,39.2651219]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p32 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"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":"6452.0"},{"label":"split_canvas_h","value":"3791.6"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"191.2,653.1 180.2,676.8 208.8,939.3 216.7,939.4 241.3,939.5 245.4,924.1 1183.5,938.3 1267.0,907.8 1288.2,922.3 1403.0,787.1 1333.6,771.0 1556.3,194.4 1525.7,139.1 1501.5,85.8 856.0,75.2 725.2,117.4 510.1,128.1 507.1,58.5 299.8,395.2 302.1,395.6 291.5,434.1 252.9,527.0 191.2,653.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[559.0,662.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5436006,39.2624987]}},{"type":"Feature","properties":{"resourceCoords":[1186.0,263.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5405764,39.2639405]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p32 [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":"3752.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3899.6"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"220.6,1912.0 447.7,1912.0 1294.4,1911.9 1311.9,1888.7 1549.3,1873.4 1575.9,1669.3 1559.2,1538.8 1601.5,1508.9 1602.6,1466.5 1552.8,1495.7 1511.5,1511.7 1486.3,1521.5 1449.0,1380.7 1311.9,1393.1 1227.9,1362.3 1203.7,1278.3 1213.2,1006.8 1114.0,986.4 1036.6,1007.8 939.2,982.6 659.2,1008.3 140.8,955.2 8.9,1006.7 51.0,1046.5 99.9,1085.7 112.5,1698.0 182.2,1686.7 127.7,1853.7 176.4,1864.1 220.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[666.0,1738.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.53753444054456,39.261102378112795]}},{"type":"Feature","properties":{"resourceCoords":[389.0,1708.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.53870450162476,39.26161251385389]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p32 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5043.6"},{"label":"split_canvas_y","value":"3783.6"},{"label":"split_canvas_w","value":"1408.4"},{"label":"split_canvas_h","value":"1590.4"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1297.2,1013.9 1268.3,1015.1 1329.2,1300.7 1464.8,1255.5 1567.6,1202.0 1583.4,992.6 1382.3,951.4 1297.2,1013.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0032__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1260.9,945.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53334613944997,39.26130263447359]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,945.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.5325532098304,39.26107434440046]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1343.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53288638228457,39.26038020138042]}},{"type":"Feature","properties":{"resourceCoords":[1260.9,1343.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53367931190415,39.260608491453546]}},{"type":"Feature","properties":{"resourceCoords":[1380.6,1283.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5333595,39.2606356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p33","metadata":[{"label":"streets","value":"16"},{"label":"intersections","value":"61"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0033","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"358.4,1713.2 132.3,1711.0 128.7,1246.6 130.8,1049.1 134.6,905.4 170.8,904.9 166.6,597.3 161.4,141.0 442.2,143.3 708.8,138.8 949.3,151.3 1519.8,150.3 1524.2,302.8 1527.1,508.3 1520.5,663.6 1519.0,1183.0 1517.2,1450.4 1612.0,1451.7 1563.5,1462.9 1561.3,1824.4 1379.2,1799.7 1296.8,1839.8 1279.7,1766.2 1279.7,1728.4 692.2,1718.7 358.4,1713.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[712.0,601.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5418352,39.2725891]}},{"type":"Feature","properties":{"resourceCoords":[1519.0,1183.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5395822,39.2693415]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"57.5,1620.4 56.1,1098.1 62.0,941.9 58.0,735.2 52.7,581.9 56.2,296.8 49.2,48.6 52.5,44.5 599.5,19.4 1239.7,34.1 1308.2,73.8 1332.9,49.4 1457.2,86.0 1483.5,64.8 1547.1,111.0 1530.2,548.1 1612.0,1150.5 1612.0,1158.1 1572.8,1858.3 1530.0,1887.5 1323.7,1891.4 947.2,1865.0 632.7,1889.5 348.0,1858.7 169.0,1890.2 57.2,1889.2 57.5,1620.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[743.0,579.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.53446300287209,39.27166379301435]}},{"type":"Feature","properties":{"resourceCoords":[63.0,303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.53678333602033,39.27368471607152]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.9,1088.5 52.0,1853.9 67.7,1846.2 218.4,1865.0 218.4,1832.5 339.9,1832.2 975.7,1834.1 1559.0,1835.9 1539.7,1025.1 1539.3,974.5 1532.8,832.4 1538.3,753.8 1522.9,468.1 1520.7,391.4 1518.6,226.6 1527.4,188.9 1557.7,123.6 1513.0,48.9 1072.0,16.6 892.6,39.1 604.5,179.4 551.9,79.5 364.1,126.3 87.6,90.9 87.7,240.7 1.0,282.9 1.0,325.4 28.4,301.9 92.3,424.8 40.7,526.8 39.3,665.2 24.4,684.6 52.9,1075.8 28.9,1088.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[516.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.54824519223804,39.277399907773706]}},{"type":"Feature","properties":{"resourceCoords":[1215.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.54523767351758,39.27626626981775]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p36","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"32"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"33.4,913.4 33.2,862.2 27.1,718.4 33.0,639.0 18.4,350.0 16.4,272.4 14.9,105.7 23.9,67.5 54.8,1.6 96.7,72.1 524.0,25.4 726.2,54.5 830.4,24.7 1185.2,90.6 1490.3,70.2 1522.0,271.6 1463.4,344.9 1561.8,497.9 1570.3,829.1 1611.7,931.8 1610.5,1166.5 1606.3,1321.3 1611.1,1571.0 1605.0,1857.8 1027.9,1856.8 784.7,1843.3 515.0,1847.0 230.9,1843.7 231.2,1811.2 68.3,1727.5 50.1,1733.5 33.4,913.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[499.0,342.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5390101,39.2795406]}},{"type":"Feature","properties":{"resourceCoords":[515.0,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5420371,39.2745511]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0037","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.3,1885.8 67.2,1853.0 32.8,1737.2 30.2,1403.2 50.8,1275.6 89.6,1231.7 61.8,1152.8 76.2,1101.1 38.8,1059.5 64.6,1014.1 35.2,948.2 60.9,878.6 36.0,677.1 71.3,562.2 48.5,549.5 76.0,523.5 51.5,443.0 75.4,329.9 49.3,270.4 86.0,94.2 159.1,142.0 1075.8,40.4 1246.1,79.2 1320.8,146.3 1486.0,102.9 1466.5,120.8 1538.2,246.1 1587.8,568.3 1588.0,1129.8 1560.6,1180.0 1581.8,1205.7 1562.7,1336.5 1525.5,1367.5 1563.0,1441.4 1567.5,1843.2 1300.3,1885.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0037/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54931859316042,39.295686410836716]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.5424083056884,39.29295327319489]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54656719260029,39.28656561436324]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55347748007233,39.28929875200506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p38","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.76"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0038","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1532.0,87.8 1577.0,280.1 1594.9,935.7 1547.1,1859.2 1170.2,1894.0 620.5,1896.7 473.9,1860.4 75.5,1848.9 18.1,1630.2 71.9,1102.2 28.8,957.3 25.4,637.0 38.4,99.8 71.4,40.2 939.9,25.8 1389.9,121.9 1532.0,87.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0038/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53570145885443,39.29067935247939]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.52876338166165,39.28815931942389]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53259777877305,39.28174560702697]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.53953585596584,39.28426564008247]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0039__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p39 [2]","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":"1923.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4528.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0039__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0039","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"911.6,1899.4 1592.7,1877.2 1611.9,1128.2 1569.6,746.2 1583.8,478.1 1524.6,44.7 1353.7,15.5 705.7,36.2 645.6,265.9 628.0,442.1 628.0,463.7 524.9,1479.4 556.1,1863.5 911.6,1899.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0039__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[480.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55507765077569,39.25427519415741]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.54972812317324,39.25409484053467]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55011860271107,39.24705095738624]}},{"type":"Feature","properties":{"resourceCoords":[480.8,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-81.55546813031351,39.24723131100899]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"174.2,1573.8 165.1,1221.9 168.8,955.3 168.6,739.6 180.8,697.2 178.6,451.6 170.8,417.0 170.8,62.6 477.2,65.1 786.4,64.7 1099.5,68.1 1413.8,67.9 1409.5,397.9 1408.5,668.6 1412.1,1116.9 1406.4,1273.1 1399.5,1716.2 1163.8,1720.9 1131.4,1760.2 1128.7,1811.7 877.9,1813.0 797.3,1818.2 479.6,1827.7 172.0,1824.0 174.2,1573.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1409.0,637.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5604013,39.2657878]}},{"type":"Feature","properties":{"resourceCoords":[172.0,1824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5644237,39.2664351]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"829.8,1804.3 198.2,1685.0 208.2,1266.9 215.2,1112.0 215.3,667.4 218.5,398.9 225.5,71.5 225.1,28.4 658.6,29.0 830.6,33.7 1139.6,65.4 1350.0,60.4 1407.2,41.8 1453.3,57.4 1445.7,486.5 1458.3,642.7 1456.3,694.0 1438.0,1177.0 1416.3,1210.1 1377.6,1811.3 1310.5,1810.7 829.8,1806.3 829.8,1804.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[831.0,1228.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5607237,39.2642107]}},{"type":"Feature","properties":{"resourceCoords":[216.0,636.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5604013,39.2657878]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"141.9,1859.0 122.7,1801.3 115.7,1588.5 145.0,1275.6 148.2,1101.6 145.1,663.0 101.4,663.8 101.0,348.4 104.3,34.2 160.0,35.3 371.5,24.4 705.0,32.3 1111.2,22.9 1361.4,24.4 1506.0,19.1 1496.9,647.4 1565.2,648.0 1495.3,686.6 1493.2,737.4 1498.7,966.0 1491.7,1282.7 1111.9,1279.5 1112.2,1801.6 1112.3,1897.0 403.5,1899.3 126.6,1905.7 141.9,1859.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[654.0,653.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5581956828681,39.26697154116923]}},{"type":"Feature","properties":{"resourceCoords":[654.0,1872.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55655038774134,39.26511205025049]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p7 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.49"},{"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":"3904.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"886.2,1589.6 874.9,1248.8 876.4,990.6 874.6,781.7 886.1,740.5 882.2,502.6 874.4,469.2 871.8,125.8 871.4,83.0 384.7,87.8 346.4,121.5 342.4,82.1 1.0,172.0 1.0,201.3 39.2,216.0 97.0,1087.5 36.8,1378.3 102.8,1822.0 209.9,1877.3 870.3,1875.0 886.0,1832.0 886.2,1589.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[886.0,648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5619953,39.2677032]}},{"type":"Feature","properties":{"resourceCoords":[886.0,1832.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5644237,39.2664351]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"18.4,323.9 48.5,324.4 137.7,685.4 96.3,688.9 131.1,729.7 128.4,1240.9 83.4,1240.5 78.5,1552.2 76.6,1866.7 133.1,1868.3 347.5,1859.0 685.6,1869.7 1097.6,1863.3 1351.2,1866.9 1497.8,1862.7 1507.2,1559.4 1500.2,1236.2 1104.1,1240.3 1117.5,1153.3 1125.5,1138.2 1123.2,416.8 1204.0,388.5 1204.0,291.3 1204.0,255.3 950.2,155.5 935.4,176.7 830.6,184.8 641.9,80.4 563.9,179.3 266.7,62.4 112.3,90.0 18.4,323.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[672.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55897496715043,39.26797486949221]}},{"type":"Feature","properties":{"resourceCoords":[1496.0,1244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.55820924644838,39.2697526344893]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Parkersburg, West-Virginia | 1916 | sanborn09438_006 p9 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.60"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T00:32:30Z","modified":"2026-10-19T00:32:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"118.8,598.5 99.5,634.4 113.5,1254.0 116.3,1253.9 171.2,1854.7 220.8,1850.6 297.5,1912.0 314.7,1912.0 356.8,1912.0 371.8,1886.0 770.5,1833.0 940.3,1434.2 1222.9,1434.2 1458.9,1321.8 1385.4,1271.0 1559.0,865.6 1592.9,628.3 1518.0,208.3 1547.0,53.8 1612.0,7.0 1579.8,1.0 1546.2,1.0 92.2,52.6 94.5,101.7 118.8,598.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd389m:g3894m:g3894pm:g3894pm_g094381916:09438_1916-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[92.0,643.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5599053,39.2633361]}},{"type":"Feature","properties":{"resourceCoords":[92.0,49.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-81.5586967,39.2638751]}}]}}]}