{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07628_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Du Bois, Pennsylvania | 1901 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"29"},{"label":"placed","value":"17"},{"label":"unplaced","value":"12"},{"label":"fit sources","value":"georef-snap 7, georef 7, snap:0 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p13__2 (tier 1, 41.12015,-78.76348 +/-140m); p14 (tier 2, 41.12705,-78.75691 +/-100m); p17__2 (tier 1, 41.13015,-78.75358 +/-106m); p18__1 (tier 1, 41.12608,-78.76185 +/-206m); p18__2 (tier 1, 41.12773,-78.76494 +/-214m); p19__1 (tier 4, 41.12164,-78.76337 +/-1111m); p19__2 (tier 4, 41.12164,-78.76337 +/-1111m); p20__1 (tier 4, 41.12164,-78.76337 +/-1111m); p20__2 (tier 4, 41.12164,-78.76337 +/-1111m); p20__3 (tier 4, 41.12164,-78.76337 +/-1111m); p6__1 (tier 1, 41.12348,-78.76424 +/-261m); p9__2 (tier 1, 41.11501,-78.76508 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"42.5,838.8 50.8,1756.4 116.2,1874.4 399.1,1790.7 454.1,1862.8 697.0,1887.9 1437.1,1878.5 1463.3,1912.0 1493.3,1912.0 1504.7,1912.0 1512.1,1334.0 1515.3,875.3 1523.6,450.3 1523.5,20.0 1422.3,21.9 1109.2,18.1 821.7,22.1 568.4,18.8 492.2,13.6 508.5,223.6 539.5,535.2 403.6,585.2 119.2,695.5 1.0,746.2 1.0,819.8 42.5,838.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1507.0,454.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76314900208742,41.11617161334464]}},{"type":"Feature","properties":{"resourceCoords":[505.0,279.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76532626849928,41.115272401875366]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p11","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1530.6,1832.3 1530.9,1872.6 1596.1,1820.7 1557.6,1234.8 1610.7,821.2 1531.4,494.6 1566.8,103.6 1462.5,39.5 1167.2,125.3 841.7,41.5 202.0,55.8 126.2,1.0 109.0,1.0 107.0,213.0 108.1,481.9 100.8,699.8 105.7,801.9 98.8,1029.4 102.6,1262.3 115.2,1445.7 118.0,1638.1 105.9,1822.8 520.1,1828.3 967.3,1828.6 1530.6,1832.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1001.0,1296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7606984,41.1154859]}},{"type":"Feature","properties":{"resourceCoords":[107.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.759956,41.118076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p12","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"27"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1141.9,1735.8 915.1,1725.9 356.0,1727.7 198.2,1732.6 183.8,1557.5 144.9,1268.2 109.7,963.1 72.2,662.7 53.8,663.7 45.8,387.8 41.4,114.5 834.7,90.5 910.8,83.5 1128.9,92.5 1366.8,97.3 1588.0,95.8 1586.3,370.0 1576.5,592.1 1580.4,696.3 1570.9,928.2 1572.3,1165.8 1583.2,1353.0 1584.0,1549.2 1569.7,1737.5 1141.9,1735.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[874.0,87.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7610399,41.1191146]}},{"type":"Feature","properties":{"resourceCoords":[856.0,1194.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.763184,41.117855]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p13 [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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"97.1,1822.8 310.6,1824.5 310.7,1840.4 979.8,1877.2 1527.2,1760.8 1157.0,1651.9 1112.8,1453.0 1037.2,1375.3 1116.2,1054.5 1064.0,958.7 536.8,817.6 502.1,142.9 358.9,30.3 359.8,35.2 49.6,34.2 60.4,303.1 93.3,1082.4 101.2,1157.2 94.9,1371.5 93.0,1605.4 97.1,1822.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[637.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.75889549052523,41.11870404493572]}},{"type":"Feature","properties":{"resourceCoords":[107.0,1094.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76106256776876,41.11916582488112]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p13 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.23"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4641.6"},{"label":"split_canvas_y","value":"3635.2"},{"label":"split_canvas_w","value":"1810.4"},{"label":"split_canvas_h","value":"2968.4"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1546.8,1630.8 1498.7,1589.9 1586.3,1395.9 1400.1,1103.5 1461.6,1031.1 1420.6,977.1 1165.0,1022.4 1164.9,1035.0 1164.6,1069.8 1211.8,1232.6 1227.9,1232.6 1230.0,1621.8 1547.5,1635.8 1546.8,1630.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0013__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1160.4,908.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.76406470589076,41.12158687475054]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,908.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.76322565929947,41.122127605778125]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1650.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.76205660820118,41.1210835706844]}},{"type":"Feature","properties":{"resourceCoords":[1160.4,1650.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.76289565479249,41.120542839656814]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.4,142.5 1603.0,142.0 1601.9,642.4 1589.9,1296.4 1605.8,1296.4 1600.7,1824.4 1358.6,1820.3 1100.7,1818.8 715.3,1813.6 714.9,1845.5 543.0,1803.9 543.4,1828.1 29.6,1812.2 26.2,1495.7 92.6,1344.5 32.6,1255.0 61.0,127.2 96.8,141.6 113.6,98.9 303.2,51.0 378.9,114.0 716.2,118.3 744.6,200.8 867.6,244.3 1359.2,120.0 1359.3,113.7 1518.4,142.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1588.0,1296.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.75499374672043,41.12914776701287]}},{"type":"Feature","properties":{"resourceCoords":[721.0,1829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.75424193640526,41.12733882816114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p16 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.41"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3802.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"3850.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"895.6,1912.0 1075.5,1912.0 1558.5,1874.9 1583.6,1199.3 1555.3,1148.0 1508.0,1189.9 1468.4,1068.1 1536.1,1020.7 310.4,971.0 45.7,1019.2 47.1,1733.2 188.4,1759.8 202.6,1759.9 285.1,1758.5 307.5,1755.5 721.6,1765.1 865.6,1754.7 891.5,1806.6 898.8,1813.6 895.6,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,950.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75990365424643,41.12957196986265]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,950.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75886092040284,41.13255091990289]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75651623597804,41.13207870886964]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75755896982162,41.129099758829405]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p16 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.47"},{"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":"3802.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1373.8,81.4 1117.5,81.5 734.6,78.7 734.5,110.5 563.4,70.0 564.0,94.2 53.5,81.4 69.5,875.2 215.3,949.4 1419.5,949.1 1549.5,877.6 1561.5,155.4 1612.0,150.3 1612.0,120.4 1410.0,115.3 1410.3,81.8 1373.8,81.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75492973732095,41.126039795933146]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.7539210846388,41.128966790425096]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,950.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.75164849893658,41.12851615870492]}},{"type":"Feature","properties":{"resourceCoords":[0.0,950.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-78.7526571516187,41.12558916421297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0017__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p17 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"3257.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0017__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"205.3,1811.8 206.7,1841.8 676.4,1788.2 764.7,1142.5 769.3,247.0 808.4,243.6 811.3,127.6 804.2,120.9 777.1,67.8 628.0,80.0 199.3,74.2 176.1,77.6 185.0,582.5 185.8,1242.5 201.9,1242.2 207.3,1775.0 1.0,1775.7 1.0,1809.5 205.3,1811.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0017__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[720.4,1769.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.75340150786954,41.12984507399081]}},{"type":"Feature","properties":{"resourceCoords":[467.2,1234.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.75482968426984,41.12965576212146]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"331.4,1822.8 196.2,1820.5 155.2,1820.7 84.2,1821.0 55.4,1820.4 88.3,31.5 1574.2,58.0 1552.7,1697.7 1589.8,1816.6 1437.2,1896.5 1443.9,1912.0 1369.7,1912.0 1369.5,1840.6 400.9,1824.0 331.4,1822.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[735.0,1200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.77237090643392,41.12212769448223]}},{"type":"Feature","properties":{"resourceCoords":[1367.0,1835.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7702764194786,41.1227387977194]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1498.2,5.2 1502.8,386.1 1504.5,956.1 1502.3,1231.0 1506.1,1333.2 1505.0,1593.3 1507.7,1892.8 1506.9,1895.3 67.3,1847.5 125.0,1820.7 30.2,1615.9 64.5,61.0 245.7,16.0 1469.9,24.5 1469.8,5.1 1498.2,5.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[865.0,1262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76938068853802,41.118422154119585]}},{"type":"Feature","properties":{"resourceCoords":[865.0,37.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.77220285410077,41.1194062747352]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"190.8,2.3 194.2,375.1 194.2,932.9 191.3,1202.0 194.7,1301.9 192.8,1556.5 194.6,1849.6 179.9,1899.0 241.4,1896.0 595.9,1891.8 809.6,1894.7 1228.0,1892.5 1426.3,1887.3 1425.8,1847.2 1425.3,1773.6 1432.8,1248.3 1262.8,1250.8 1217.9,929.5 1429.5,932.9 1437.3,560.8 1491.2,535.6 1612.0,428.7 1612.0,399.8 1612.0,361.4 1556.3,297.8 1595.9,263.1 1506.2,67.8 1434.5,69.0 1433.2,1.0 252.5,1.0 190.8,2.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[811.0,1244.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76800232813773,41.12061941136034]}},{"type":"Feature","properties":{"resourceCoords":[811.0,628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7694544092222,41.121121862542886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,679.5 1.0,735.1 89.6,735.2 143.2,782.5 143.7,953.5 126.0,1014.1 416.9,1281.0 266.1,1447.2 553.4,1636.5 670.5,1499.3 1083.6,1873.3 1128.2,1912.0 1367.9,1912.0 1439.6,1834.6 1518.2,1782.5 1571.0,1772.7 1528.1,1511.0 1611.3,1130.8 1514.8,482.9 1578.5,295.6 1597.3,295.0 1000.0,72.8 995.8,30.9 107.0,53.9 45.7,692.9 1.0,679.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[808.0,747.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7675242,41.1231205]}},{"type":"Feature","properties":{"resourceCoords":[808.0,77.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.767994,41.124303]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0006__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p6 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2804.0"},{"label":"split_canvas_y","value":"3790.0"},{"label":"split_canvas_w","value":"3648.0"},{"label":"split_canvas_h","value":"3862.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0006__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"701.0,1623.7 704.6,1664.7 1286.5,1889.5 1585.3,1884.0 1591.7,1240.5 1571.7,1136.6 1517.4,1142.1 1569.2,1000.7 845.8,984.4 831.9,1340.4 705.6,1623.7 701.0,1623.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0006__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[942.0,1662.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.766983,41.12455]}},{"type":"Feature","properties":{"resourceCoords":[1431.0,1662.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7658171,41.1248251]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p7","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1207.6,1774.4 1246.8,1601.2 1296.8,1310.5 1355.2,1005.6 1410.0,704.6 1392.0,700.0 1467.8,431.6 1546.3,166.8 962.0,1.0 670.0,1.0 449.9,147.8 253.7,145.7 208.1,119.1 181.8,166.2 171.7,260.6 185.6,365.9 31.6,551.6 50.5,548.5 92.7,541.2 131.4,749.4 203.7,1190.2 236.5,1416.0 300.2,1789.1 313.6,1853.4 844.1,1771.3 1071.0,1745.9 1112.7,1748.8 1207.6,1774.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[741.0,1117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.765285,41.1196521]}},{"type":"Feature","properties":{"resourceCoords":[1392.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.7634067,41.1196262]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p8","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.7,81.7 1489.8,132.2 1489.8,673.7 1480.1,903.7 1470.8,944.9 1430.5,1035.5 1364.0,1182.0 1113.6,1694.0 1002.4,1897.0 909.6,1853.0 627.4,1708.0 364.9,1581.8 136.7,1464.3 70.0,1425.3 177.1,1166.5 105.3,1131.9 213.6,866.8 191.9,793.9 261.2,761.0 273.7,637.0 118.1,36.6 1504.7,81.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[677.0,931.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.76622,41.117016]}},{"type":"Feature","properties":{"resourceCoords":[1364.0,1182.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.764975,41.1179555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Du Bois, Pennsylvania | 1901 | sanborn07628_004 p9 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.85"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T03:28:59Z","modified":"2026-10-20T03:28:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1279.3,13.0 1186.8,67.7 643.5,22.5 570.2,124.1 571.1,157.4 513.0,166.8 363.0,421.7 346.6,429.8 345.2,431.9 332.3,436.7 39.8,579.6 61.8,1799.8 369.9,1884.2 732.8,1877.8 763.1,1908.5 776.3,1873.6 788.3,1842.0 915.0,1836.6 1213.1,1834.2 1354.8,1835.6 1434.4,1540.0 1492.3,1342.4 1570.2,1083.7 1498.0,1057.3 1576.4,792.4 1548.6,724.5 1612.0,686.3 1612.0,565.9 1404.8,4.5 1279.3,13.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824dm:g3824dm_g076281901:07628_1901-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[576.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.766405,41.1139261]}},{"type":"Feature","properties":{"resourceCoords":[1424.0,1582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-78.765327,41.115299]}}]}}]}