{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07553_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Brookville, Pennsylvania | 1921 | 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":"26"},{"label":"placed","value":"16"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 8, georef 6, georef-street 1, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"6 sheet(s) cut into 14 panels"},{"label":"unplaced pages","value":"p12__2 (tier 1, 41.16311,-79.07897 +/-151m); p14__1 (tier 1, 41.16097,-79.06391 +/-261m); p18__1 (tier 1, 41.15025,-79.08488 +/-205m); p18__2 (tier 1, 41.15240,-79.07992 +/-135m); p18__3 (tier 1, 41.15075,-79.08230 +/-123m); p19 (tier 3, 41.14944,-79.07169 +/-550m); p4__2 (tier 1, 41.16020,-79.07410 +/-100m); p4__3 (tier 1, 41.16209,-79.07305 +/-133m); p5__2 (tier 1, 41.15773,-79.07185 +/-104m); p6__2 (tier 1, 41.15666,-79.09254 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p10","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"800.8,148.3 1014.7,138.4 1496.1,141.8 1544.6,142.5 1544.8,1206.9 1538.8,1206.9 1548.0,1387.0 1566.8,1755.5 1612.0,1763.4 1612.0,1794.1 1323.4,1866.8 1325.7,1896.2 897.4,1890.3 123.9,1832.8 70.5,1673.3 123.3,1595.3 51.6,1458.3 27.7,904.8 151.6,843.2 157.9,759.0 109.2,233.0 44.2,170.1 264.5,22.0 597.9,108.5 799.5,69.6 800.8,148.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1105.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.083255,41.164906]}},{"type":"Feature","properties":{"resourceCoords":[326.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.085106,41.165175]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p11","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.8,1286.0 69.7,1286.2 94.0,235.2 118.6,236.2 640.6,255.2 951.3,140.6 952.9,42.8 1050.6,45.8 1060.4,103.5 1206.9,49.0 1548.5,139.6 1557.2,139.2 1565.4,963.3 1563.6,1297.9 1554.5,1856.4 1331.7,1857.8 1214.2,1850.7 1111.3,1854.3 901.2,1848.0 577.8,1844.5 215.8,1846.3 123.6,1867.2 123.3,1837.2 78.8,1828.3 68.7,1464.1 63.8,1286.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[567.0,1291.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.081337,41.163319]}},{"type":"Feature","properties":{"resourceCoords":[567.0,253.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.080913,41.165207]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0012__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p12 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"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":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0012__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1550.5,1758.8 1427.1,814.8 1105.3,813.9 1078.9,751.4 1053.3,815.9 911.8,819.4 686.0,770.9 701.1,730.8 545.1,736.9 531.6,731.0 483.7,524.1 441.9,343.6 421.5,265.8 304.2,115.2 90.5,125.5 110.0,954.6 112.8,1291.2 111.3,1853.2 536.5,1849.7 772.7,1851.9 1104.6,1847.2 1104.6,1852.8 1518.3,1851.4 1528.2,1759.2 1550.5,1758.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0012__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1097.0,1280.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07656941995603,41.16269528000418]}},{"type":"Feature","properties":{"resourceCoords":[105.0,243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07849090474897,41.16489283280946]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p13","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1760.9 1612.0,1661.8 1598.7,1661.5 1522.7,72.8 384.8,16.9 82.2,92.7 22.5,223.5 77.6,1093.8 23.9,1772.7 1.0,1776.7 1.0,1855.6 214.1,1849.3 695.6,1860.8 769.1,1863.0 1298.0,1879.0 1612.0,1760.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[303.0,243.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.082422,41.168428]}},{"type":"Feature","properties":{"resourceCoords":[303.0,1851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.083095,41.165544]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p14 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"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":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1844.0 1525.3,1832.6 1600.9,1285.2 1561.8,59.7 222.2,20.4 114.0,122.2 135.7,814.3 294.9,817.1 390.1,899.3 394.2,899.3 398.1,906.2 449.1,950.3 784.0,1576.2 816.7,1826.7 783.0,1838.0 1092.0,1912.0 1203.2,1912.0 1238.9,1912.0 1236.1,1877.0 1524.5,1831.5 1538.5,1912.0 1612.0,1912.0 1612.0,1844.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[844.0,1099.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.06872244756379,41.160536556698]}},{"type":"Feature","properties":{"resourceCoords":[516.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.0660666809287,41.16100595233994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"556.0,42.5 568.5,1.0 533.2,1.0 533.8,25.4 462.4,49.4 61.0,54.4 12.2,722.7 44.3,1847.7 74.8,1876.8 265.3,1895.0 857.3,1863.5 1007.0,1890.0 1008.9,1912.0 1076.7,1912.0 1213.5,1840.8 1302.9,1795.9 1436.4,1710.8 1521.7,1660.3 1612.0,1603.2 1612.0,1564.0 1612.0,1545.8 1584.9,1553.0 1571.8,1124.7 1606.1,640.5 1576.2,635.3 1562.7,579.2 1566.1,525.5 1548.8,521.4 1468.4,185.7 1466.3,198.2 1459.6,241.9 1453.1,285.4 1448.2,316.8 1443.4,348.4 1439.8,372.4 867.5,223.1 937.0,271.9 1011.5,336.2 602.6,117.3 584.0,114.1 582.8,124.5 579.9,148.0 536.4,136.7 544.0,88.0 544.1,87.6 551.5,41.5 556.0,42.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1331.0,1777.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.08092170840966,41.15238260955881]}},{"type":"Feature","properties":{"resourceCoords":[309.0,883.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.08573997237451,41.155698995293164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p16","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"22.6,1591.3 1.0,1624.2 1.0,1726.9 14.7,1734.3 64.2,1886.0 97.7,1892.8 391.1,1840.2 1139.3,1893.0 1543.3,1816.5 1612.0,1211.3 1612.0,1206.0 1559.4,767.2 1612.0,394.5 1612.0,390.9 1544.3,71.8 1612.0,20.8 1485.1,28.9 1089.2,66.9 1088.3,56.6 664.2,71.9 664.6,55.3 382.8,40.8 106.8,38.6 108.5,1.0 87.6,1.0 90.5,36.5 1.0,305.7 1.0,307.5 95.2,369.6 91.2,580.4 81.8,775.7 77.2,1088.2 54.3,1284.2 22.6,1591.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0016/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.0789135,41.1534975]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.0768248,41.1509914]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.0807721,41.149126100000004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.0828608,41.1516322]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1017.9,1859.0 1018.0,1848.8 598.6,1823.5 600.6,1807.1 324.3,1766.0 52.5,1737.5 58.0,1699.6 37.2,1697.6 65.0,63.7 556.9,93.5 833.1,21.5 1233.5,26.9 1453.6,123.0 1579.9,257.2 1562.8,1853.2 1544.0,1863.7 1411.6,1859.3 1017.9,1859.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1558.0,270.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.0737332269935,41.152745533310984]}},{"type":"Feature","properties":{"resourceCoords":[1026.0,1820.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07755284759936,41.15177232236786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p2","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.0,55.5 376.9,70.4 726.9,65.8 777.3,50.8 828.4,76.1 982.7,79.3 1276.5,75.5 1410.4,85.6 1453.5,82.7 1544.7,464.2 1550.6,828.7 1550.6,1154.5 1546.7,1366.0 1551.5,1469.6 1545.7,1588.0 1549.6,1812.4 1289.2,1813.2 978.7,1818.2 676.0,1816.0 376.6,1822.9 106.8,1821.9 107.0,1033.3 112.3,813.5 109.9,548.4 112.8,125.2 110.5,91.1 108.0,55.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[676.0,1309.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.080765,41.160576]}},{"type":"Feature","properties":{"resourceCoords":[676.0,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.079551,41.160411]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"333.2,1912.0 304.7,1912.0 291.6,1832.0 61.7,1705.4 108.5,1399.0 73.5,1185.8 87.6,1185.6 88.0,607.7 88.0,606.0 92.5,119.0 100.0,57.0 370.0,62.3 669.8,60.2 972.6,67.2 1283.4,67.2 1544.0,70.6 1539.7,496.4 1533.1,733.0 1531.7,1065.5 1526.1,1065.4 1519.8,1479.8 1612.0,1491.3 1612.0,1507.9 1612.0,1513.7 1554.9,1520.2 1565.4,1846.2 952.4,1904.3 949.4,1912.0 925.6,1912.0 918.3,1912.0 903.6,1859.2 333.2,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[969.0,1051.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07705621638799,41.16065791571753]}},{"type":"Feature","properties":{"resourceCoords":[969.0,64.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07942407730437,41.160950377095446]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p4 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.91"},{"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":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"306.6,18.2 307.9,67.3 285.3,100.2 4.0,523.0 188.3,638.5 199.7,796.8 228.3,1112.5 248.3,1368.0 262.1,1703.8 136.0,1698.7 18.3,1706.6 5.5,1707.4 437.4,1875.8 729.4,1849.3 854.8,1509.1 1492.2,1505.3 1555.0,1450.0 1582.2,1140.6 1507.7,565.4 1404.4,558.8 1365.3,474.8 1238.5,456.9 1129.2,457.8 1025.6,458.7 1025.6,457.4 1025.2,426.7 983.5,420.8 929.3,224.8 954.0,99.5 341.6,18.4 336.9,25.2 306.6,18.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4.0,523.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.073743,41.159819]}},{"type":"Feature","properties":{"resourceCoords":[493.0,1174.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.072244,41.160785]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p5 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"7652.0"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1091.7,1.0 1013.0,1.0 1005.0,89.3 861.8,188.2 617.1,173.4 505.5,88.7 420.8,118.3 432.4,894.9 365.0,926.4 365.0,964.4 365.0,970.0 271.8,970.0 245.5,982.3 291.2,1053.6 156.8,1056.3 100.5,1841.6 470.2,1875.1 497.1,1825.4 684.7,1812.5 845.2,1861.0 856.6,1791.9 931.2,1804.2 932.1,1888.4 1232.9,1890.5 1235.9,1854.5 1385.3,1879.1 1278.2,1828.0 1396.7,1823.3 1523.0,1831.8 1518.2,1494.3 1505.1,1237.2 1484.7,919.5 1477.6,760.2 1295.7,639.3 1589.4,222.3 1612.0,191.3 1612.0,85.3 1091.7,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[681.0,1735.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07097618409884,41.15888678243427]}},{"type":"Feature","properties":{"resourceCoords":[681.0,1227.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.07219686801132,41.15880343382354]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.56"},{"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":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"836.2,116.3 211.9,385.9 209.6,421.0 104.3,432.3 1.0,476.9 1.0,537.5 75.6,530.0 20.6,1052.9 116.9,1546.2 73.6,1592.3 118.0,1666.5 48.5,1770.4 87.1,1853.2 615.4,1878.2 1079.4,1765.0 1167.5,1680.0 1160.8,1530.7 1344.6,1246.3 1537.5,1238.8 1538.5,1243.8 1540.0,1243.7 1547.3,1243.4 1552.6,1243.2 1534.8,662.3 1524.0,174.2 1529.5,111.7 1268.7,115.5 836.2,116.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.08075903029884,41.15666312252053]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.0800099585752,41.1595729025141]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.07545851399011,41.15889931271316]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-79.07620758571375,41.15598953271958]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"853.8,9.1 854.2,1.0 665.3,1.0 656.8,87.8 723.8,85.5 723.3,122.4 424.9,981.5 526.6,817.6 599.8,668.0 510.1,1582.5 486.6,1822.2 488.1,1822.2 534.1,1821.8 596.8,1821.3 600.0,1821.2 659.0,1821.2 676.2,1821.0 745.2,1820.5 751.9,1820.5 832.0,1819.9 1287.2,1824.7 1547.0,1824.0 1546.7,1041.5 1551.8,823.3 1549.2,560.1 1551.8,140.2 1549.5,106.3 1549.2,103.5 853.8,9.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1547.0,1824.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.079783,41.159383]}},{"type":"Feature","properties":{"resourceCoords":[1547.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.084012,41.15996]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"43.5,1852.2 102.5,1892.4 1424.0,1887.8 1428.5,1912.0 1520.9,1912.0 1590.3,1366.0 1557.6,1368.5 1570.0,1100.3 1562.2,751.6 1546.8,701.5 1571.6,650.3 1573.3,496.6 1566.8,203.7 1575.7,70.2 1574.6,56.4 1150.0,49.2 1150.1,49.4 524.0,1.0 387.1,1.0 401.0,42.7 105.5,16.9 94.3,85.4 76.3,122.5 34.0,140.3 22.4,1079.5 58.4,1084.9 57.1,1366.0 62.4,1379.2 43.5,1852.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1559.0,1374.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.08401124676853,41.15994953747111]}},{"type":"Feature","properties":{"resourceCoords":[1559.0,764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.08373324315873,41.161051012813786]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Brookville, Pennsylvania | 1921 | sanborn07553_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:08:22Z","modified":"2026-10-20T02:08:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1523.0,1856.6 458.4,1886.2 349.3,1739.2 148.5,1680.8 110.5,1419.9 153.5,765.5 52.4,361.9 136.4,110.1 380.3,31.1 564.1,48.4 688.4,131.9 1242.5,33.4 1538.7,47.3 1530.3,115.8 1514.0,153.5 1472.7,172.8 1498.6,1106.6 1534.5,1110.5 1544.5,1390.0 1550.2,1402.8 1550.4,1873.7 1523.0,1856.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824bm:g3824bm_g075531921:07553_1921-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[734.0,205.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.08889068767532,41.16295092250431]}},{"type":"Feature","properties":{"resourceCoords":[443.0,1874.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-79.09051218273723,41.160067695643534]}}]}}]}