{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07570_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Catasauqua, Pennsylvania | 1948 | 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":"55"},{"label":"placed","value":"34"},{"label":"unplaced","value":"21"},{"label":"fit sources","value":"georef 19, georef-snap 12, snap:0 2, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"18 sheet(s) cut into 43 panels"},{"label":"unplaced pages","value":"p14__2 (tier 1, 40.65814,-75.47375 +/-100m); p16__2 (tier 1, 40.65224,-75.46925 +/-100m); p18__2 (tier 1, 40.67282,-75.49675 +/-125m); p1__2 (tier 1, 40.63741,-75.47108 +/-102m); p2 (tier 1, 40.65728,-75.48746 +/-226m); p20__1 (tier 1, 40.66238,-75.48832 +/-100m); p21__3 (tier 1, 40.66048,-75.48997 +/-117m); p22__2 (tier 1, 40.65820,-75.48443 +/-182m); p23__1 (tier 1, 40.64613,-75.47012 +/-143m); p26__2 (tier 1, 40.64139,-75.47489 +/-109m); p26__3 (tier 1, 40.63822,-75.46761 +/-100m); p27__2 (tier 1, 40.64464,-75.47124 +/-100m); p28__1 (tier 1, 40.64209,-75.46852 +/-100m); p29__1 (tier 1, 40.63529,-75.46675 +/-215m); p29__2 (tier 1, 40.64226,-75.46814 +/-213m); p30__2 (tier 1, 40.63297,-75.46906 +/-117m); p3__1 (tier 1, 40.65575,-75.47837 +/-150m); p3__2 (tier 1, 40.64948,-75.47009 +/-188m); p3__3 (tier 1, 40.65610,-75.47795 +/-125m); p4 (tier 1, 40.65412,-75.46787 +/-264m); p6__2 (tier 1, 40.65957,-75.46768 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p10","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"886.5,48.7 886.0,115.0 1545.2,113.5 1546.7,300.1 1539.3,394.2 1479.7,675.9 1463.6,789.2 1454.2,786.9 1456.2,1644.0 1555.2,1669.8 1558.9,1830.9 1220.8,1831.3 887.1,1829.4 887.0,1862.5 330.6,1885.6 330.8,1899.0 329.8,1898.8 329.6,1885.6 265.2,1888.3 100.2,1861.5 67.9,1762.0 130.4,1485.4 69.3,1462.3 41.1,1259.7 43.1,66.5 886.5,48.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1511.0,1256.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.471532,40.652788]}},{"type":"Feature","properties":{"resourceCoords":[886.0,115.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.474605,40.653371]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.0,1864.8 244.1,1815.0 337.5,1797.7 627.0,1782.4 741.4,1768.6 741.5,1778.3 1574.7,1553.5 1574.1,1450.5 1573.6,1215.4 1577.9,754.5 1577.3,662.6 1612.0,501.7 1612.0,1.0 1520.7,1.0 1477.8,176.6 1463.4,235.7 812.7,74.6 525.0,1.0 328.0,1.0 185.5,266.9 56.8,235.8 56.3,527.4 1.0,542.5 1.0,627.1 56.4,836.6 56.1,1204.2 63.0,1864.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[751.0,408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46965045765293,40.65462731168778]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,1208.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4702297220804,40.65257444645387]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p12","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"36"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"218.5,1353.9 233.8,1912.0 247.2,1912.0 258.2,1850.0 1141.5,1814.1 1317.8,1813.2 1385.0,1867.5 1420.9,1368.2 1386.2,1367.7 1389.8,699.0 1389.9,403.4 1399.6,404.9 1612.0,408.0 1612.0,342.5 1612.0,281.8 1277.2,151.2 1333.0,9.6 1297.3,59.7 1226.2,1.0 1217.2,1.0 1167.0,7.5 1109.0,85.7 1092.2,108.4 1062.4,148.6 655.6,195.3 365.3,1.0 230.9,1.0 226.9,15.4 98.0,456.0 34.8,681.4 196.3,680.0 191.9,1018.9 185.3,1353.4 218.5,1353.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[98.0,456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470239,40.65256]}},{"type":"Feature","properties":{"resourceCoords":[972.0,1362.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470131,40.650242]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"606.4,76.0 606.1,41.6 1269.3,32.5 1562.4,26.9 1561.1,36.5 1562.1,248.2 1612.0,247.2 1612.0,449.3 1562.8,583.1 1562.4,840.0 1420.5,817.2 1510.7,1236.5 1610.5,1273.1 1471.3,1393.5 1489.5,1764.0 1242.8,1765.8 1167.8,1855.7 735.4,1882.0 53.8,1833.1 50.3,127.4 110.5,49.9 606.4,76.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[937.0,449.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46810997993366,40.64965657693967]}},{"type":"Feature","properties":{"resourceCoords":[598.0,44.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46940137700825,40.649709909887676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p14 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"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":"3188.0"},{"label":"split_canvas_h","value":"2332.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"746.8,75.7 431.4,51.7 431.5,48.7 324.3,46.1 103.5,45.5 97.3,523.5 425.0,525.0 718.6,525.0 746.8,75.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[425.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472879,40.657871]}},{"type":"Feature","properties":{"resourceCoords":[744.0,525.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472356,40.658309]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p14 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.63"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1511.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"6140.8"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1539.6,1830.2 1531.5,1799.4 1395.6,1499.4 1340.0,1352.6 1612.0,1226.2 1575.8,1189.7 1580.8,878.2 1507.3,816.8 1491.9,704.2 1551.4,428.4 1497.0,392.8 828.5,424.1 797.0,576.6 797.0,582.9 797.0,583.0 795.7,583.0 795.4,584.4 586.5,583.1 502.6,653.3 211.8,579.4 62.0,578.5 61.0,930.8 1.0,954.0 1.0,983.5 60.4,1146.4 60.0,1287.3 119.8,1451.8 146.8,1526.1 7.2,1553.0 233.2,1912.0 338.5,1912.0 340.7,1908.0 1523.2,1912.0 1583.0,1912.0 1583.0,1871.0 1594.2,1870.3 1574.9,1857.7 1539.6,1830.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0014__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1400.0,1463.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46366991748758,40.65118028072143]}},{"type":"Feature","properties":{"resourceCoords":[148.0,1463.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46643276980066,40.65011625483153]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p15 [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":"3230.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.2,85.8 116.1,90.6 38.7,680.1 120.3,1505.6 81.5,1569.8 227.3,1855.3 375.8,1792.8 678.2,1642.0 709.5,1632.6 736.3,1595.3 770.6,1538.5 628.4,985.1 606.4,593.3 722.0,121.7 719.4,67.5 376.7,64.6 376.8,73.2 107.2,85.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[377.8,1351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46266963939529,40.65145147827248]}},{"type":"Feature","properties":{"resourceCoords":[627.7,1351.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4624168138204,40.651036181851154]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p15 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1976.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4475.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"788.7,1877.6 1061.9,1864.0 1061.7,1855.2 1409.0,1857.1 1411.9,1912.0 1425.0,1857.7 1543.2,1796.8 1529.2,1486.5 1599.3,1387.2 1607.5,454.5 1540.0,45.8 808.4,47.5 791.5,335.4 640.8,521.0 738.6,1132.6 825.2,1320.1 829.0,1527.2 710.5,1678.3 699.0,1829.1 788.7,1877.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0015__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1070.1,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.45729297430752,40.653313391247956]}},{"type":"Feature","properties":{"resourceCoords":[1070.1,1572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.45923259314935,40.65263962989236]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p16 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"4014.0"},{"label":"split_canvas_w","value":"3679.2"},{"label":"split_canvas_h","value":"3638.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"872.3,1300.2 586.6,1304.7 559.1,1134.2 167.5,1042.0 50.0,1048.8 10.8,1212.3 1.0,1204.3 1.0,1387.6 65.4,1649.2 70.2,1817.0 88.7,1889.8 203.4,1824.7 551.8,1850.2 880.9,1609.9 886.9,1560.6 902.0,1436.5 872.3,1300.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[57.0,1111.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46748,40.653533]}},{"type":"Feature","properties":{"resourceCoords":[544.9,1111.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.467103,40.652676]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p17","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"25"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1446.4,1912.0 1544.8,1912.0 1542.5,1797.8 1540.7,981.3 1542.3,698.3 1538.8,432.7 1596.5,461.6 1529.4,25.4 1083.0,102.0 838.8,23.3 506.4,33.3 366.3,125.1 51.6,170.4 35.6,1774.1 1.0,1778.4 1.0,1798.5 59.2,1797.5 1044.0,1798.5 1046.0,1895.6 1071.5,1866.7 1410.1,1872.0 1446.4,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[53.0,976.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4922199,40.6735871]}},{"type":"Feature","properties":{"resourceCoords":[556.0,1798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.492904,40.671895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p18 [1]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"19"},{"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":"7652.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.5,1847.1 81.8,1912.0 91.8,1912.0 172.0,1912.0 195.4,1847.1 582.0,1846.0 878.9,1845.2 1038.5,1570.0 1080.5,1569.8 1145.2,1570.7 1145.2,1568.1 1145.2,1564.8 950.4,1464.5 1059.0,1243.0 1171.4,1022.1 1096.1,984.3 1577.1,836.1 1559.2,551.0 1483.7,513.9 1477.8,420.2 1422.7,419.1 1400.2,403.3 1412.1,372.1 1356.8,323.4 704.8,505.4 703.9,504.5 703.0,504.8 701.9,502.6 537.6,338.4 451.7,134.8 184.9,47.1 64.5,68.0 132.5,505.7 74.6,476.8 78.6,743.4 77.3,1027.5 80.5,1847.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[582.0,1846.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.490519,40.669851]}},{"type":"Feature","properties":{"resourceCoords":[650.0,764.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4884527,40.6710669]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p18 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.43"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4030.8"},{"label":"split_canvas_y","value":"3749.2"},{"label":"split_canvas_w","value":"2421.2"},{"label":"split_canvas_h","value":"3902.8"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1513.7,1818.3 1588.0,1711.4 1580.8,1173.6 1427.3,1001.0 1300.7,1008.2 1048.5,1391.7 1100.0,1510.6 1114.7,1524.9 1145.0,1554.2 1145.0,1554.2 1145.1,1554.4 1145.5,1615.8 1177.7,1690.2 1146.1,1720.3 1146.5,1787.8 1513.7,1818.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0018__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.5,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49499951793214,40.67289561095406]}},{"type":"Feature","properties":{"resourceCoords":[1511.1,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49452959889835,40.67327095344141]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p19 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1131.5,1876.0 1532.5,1837.7 1607.9,1647.0 1552.6,113.3 1421.8,45.9 960.8,36.9 950.1,12.2 550.6,312.9 633.8,322.8 603.2,567.0 576.4,810.5 805.1,840.3 733.4,865.1 694.2,879.4 637.9,1190.2 360.8,1291.1 1.0,1422.0 1.0,1715.2 86.7,1684.5 511.1,1824.5 1017.6,1639.2 1117.3,1897.8 1131.5,1876.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[363.0,1306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49055059931528,40.66983710743795]}},{"type":"Feature","properties":{"resourceCoords":[1013.0,1648.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4907428735494,40.66849192707246]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p19 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2338.0"},{"label":"split_canvas_h","value":"5558.4"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"536.9,18.2 531.9,28.1 154.8,17.6 57.5,89.8 120.8,292.6 45.6,676.6 137.3,1092.6 108.7,1291.8 234.2,1300.1 261.4,1289.6 516.6,1186.6 325.3,686.0 458.1,262.2 425.9,176.5 563.8,174.5 571.6,107.0 537.5,17.1 536.9,18.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[87.9,836.8],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49200201121243,40.668815312328014]}},{"type":"Feature","properties":{"resourceCoords":[164.8,272.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49231346731182,40.66984329981812]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0020__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p20 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"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":"7652.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0020__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1535.5,126.5 1557.1,115.8 1224.0,52.2 1022.3,120.9 285.8,70.2 39.8,143.5 38.5,538.8 122.2,734.1 77.5,1244.0 583.1,1486.1 583.6,1491.4 586.5,1492.7 586.5,1518.1 616.1,1795.5 665.5,1827.7 1270.2,1878.0 1543.6,1835.5 1575.8,1288.3 1612.0,1284.1 1612.0,1208.2 1536.8,1000.4 1536.8,989.5 1535.0,707.4 1535.5,126.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0020__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[850.0,707.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.489582,40.66218]}},{"type":"Feature","properties":{"resourceCoords":[850.0,145.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.488217,40.662241]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p21 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.84"},{"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":"2452.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.4,395.4 81.3,434.4 94.8,572.3 168.9,609.0 1546.0,608.5 1593.3,369.2 1549.0,145.8 1567.0,125.5 1565.2,29.6 592.7,27.4 534.2,28.4 534.2,8.6 145.9,55.4 101.5,30.1 102.6,389.3 37.4,395.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1565.0,303.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.492624,40.670886]}},{"type":"Feature","properties":{"resourceCoords":[102.0,302.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.495002,40.672923]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p21 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2452.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5200.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1470.3,1797.8 1597.7,1800.2 1571.0,1290.5 1569.4,1290.4 1513.9,1240.5 1488.2,1239.7 1484.1,1239.5 1426.4,1269.5 642.6,1214.9 582.0,680.2 300.6,661.2 99.5,1215.3 3.8,1485.1 1.0,1492.6 1.0,1798.5 62.5,1813.0 84.7,1911.4 1473.2,1877.5 1470.3,1797.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[712.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.48902740475289,40.65985439146247]}},{"type":"Feature","properties":{"resourceCoords":[314.0,675.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4880915991586,40.660947793955934]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p22 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.59"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"14.7,1666.6 85.4,1756.9 51.2,1846.7 389.3,1867.2 408.4,1689.0 517.5,1577.4 522.0,1481.8 671.4,1386.6 673.6,1383.0 677.1,1383.0 683.7,1378.7 1080.0,1361.5 1099.1,254.9 1357.9,185.9 1363.4,184.4 1380.8,186.1 1402.5,188.1 1559.1,153.7 1265.0,39.8 71.8,32.3 30.7,257.2 69.7,1016.6 52.0,1025.2 116.0,1087.1 117.6,1087.2 125.8,1593.6 1.0,1587.5 1.0,1666.6 14.7,1666.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__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":[-75.4860030406416,40.6594542769177]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.48434631084803,40.656763300459396]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.48852381873041,40.65526221468903]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.49018054852398,40.657953191147335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p22 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1515.6"},{"label":"split_canvas_y","value":"5515.6"},{"label":"split_canvas_w","value":"3334.0"},{"label":"split_canvas_h","value":"2136.4"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"995.9,1473.8 650.9,1419.9 650.4,1420.8 401.4,1910.9 1194.7,1907.7 1151.5,1398.3 1022.2,1397.0 995.9,1473.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0022__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[378.9,1378.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46298751535477,40.643532220852606]}},{"type":"Feature","properties":{"resourceCoords":[1212.4,1378.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46104301252801,40.64389469097899]}},{"type":"Feature","properties":{"resourceCoords":[1212.4,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46073871811916,40.642941538705344]}},{"type":"Feature","properties":{"resourceCoords":[378.9,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46268322094592,40.64257906857896]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0023__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p23 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.93"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0023__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,203.5 1525.5,51.7 1104.5,17.6 97.6,56.6 41.8,173.4 26.8,660.7 60.3,896.9 135.9,954.9 137.8,1182.5 1175.6,1426.4 1176.0,1429.6 1184.8,1431.6 1185.2,1506.4 1222.9,1822.3 1355.5,1882.4 1520.1,1863.1 1569.9,1774.7 1569.6,1610.7 1561.8,1289.2 1562.5,966.0 1556.0,645.0 1561.6,645.0 1565.7,330.1 1574.2,329.9 1612.0,203.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0023__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1140.0,645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4786965,40.6507902]}},{"type":"Feature","properties":{"resourceCoords":[1556.0,645.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4780205,40.6502186]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p24","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"187.8,84.7 510.5,77.1 835.0,78.0 1157.2,71.8 1157.2,77.4 1473.4,81.7 1473.5,90.3 1590.0,128.3 1600.4,128.3 1531.0,167.7 1590.7,1089.2 1522.8,1373.3 1534.0,1679.2 1585.4,1728.8 1434.8,1839.3 1434.2,1828.3 1157.3,1810.7 1158.3,1755.2 825.6,1756.8 500.6,1764.1 184.9,1763.0 183.7,1912.0 136.8,1912.0 137.2,1883.7 36.2,1842.3 30.8,575.1 88.4,291.5 52.2,101.3 23.2,84.9 187.8,84.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,1311.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4765939,40.6481274]}},{"type":"Feature","properties":{"resourceCoords":[835.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4785913,40.649814]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p25 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"},{"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":"5302.8"},{"label":"split_canvas_w","value":"3820.0"},{"label":"split_canvas_h","value":"2349.2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"285.7,1752.8 366.5,1912.0 373.6,1910.3 920.1,1910.8 829.9,1519.8 533.5,1529.7 249.8,1371.8 83.8,1365.2 82.0,1752.2 285.7,1752.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[391.0,1753.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.471538,40.646471]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1331.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472455,40.647032]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p25 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"26"},{"label":"confidence","value":"0.98"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.9,207.3 49.0,207.3 36.5,1303.6 236.4,1345.0 532.0,1521.8 763.6,1473.0 939.5,1552.1 941.8,1559.5 955.0,1565.3 955.0,1603.8 983.9,1700.6 1138.0,1858.9 1560.8,1883.2 1612.0,1806.8 1612.0,1628.5 1442.7,1542.2 1607.6,1220.5 1598.0,1215.2 1596.7,117.3 1500.0,24.0 1349.3,134.7 1348.6,123.7 1071.2,106.0 1072.2,50.4 739.0,52.0 413.4,59.2 97.1,58.1 95.9,207.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0025__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.0,1382.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.473041,40.646165]}},{"type":"Feature","properties":{"resourceCoords":[739.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4758885,40.6475061]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0026__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p26 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.70"},{"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":"5740.4"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0026__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1089.7 1612.0,1089.4 1612.0,920.8 1612.0,311.7 1583.0,303.1 1539.8,156.8 1247.5,109.7 1130.3,28.0 73.0,45.4 20.6,807.4 54.1,1225.6 405.1,1180.1 750.6,1180.1 752.4,1186.5 758.0,1186.5 758.1,1207.4 818.7,1428.0 1039.5,1420.4 1039.1,1414.8 1216.8,1414.3 1379.0,1408.4 1390.2,1408.0 1491.2,1304.7 1564.5,1083.0 1612.0,1089.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0026__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1278.0,895.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4717548,40.6402771]}},{"type":"Feature","properties":{"resourceCoords":[1003.0,918.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472362,40.640098]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p27 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.94"},{"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":"5119.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"472.7,1805.7 842.5,1829.8 909.2,1834.1 1257.4,1851.7 1260.0,1799.7 1244.6,1799.1 1278.8,466.9 1278.8,463.6 1235.5,349.0 1167.8,343.4 1167.6,343.4 1167.4,343.4 1042.8,274.4 925.1,228.9 881.0,184.9 837.5,160.8 831.9,157.7 831.3,135.3 731.6,35.8 75.8,60.5 41.4,1552.3 110.0,1539.9 115.8,1817.5 472.7,1805.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[462.9,1484.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470703,40.63475]}},{"type":"Feature","properties":{"resourceCoords":[462.9,160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470943,40.637153]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p27 [3]","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":"5119.2"},{"label":"split_canvas_y","value":"1380.4"},{"label":"split_canvas_w","value":"1332.8"},{"label":"split_canvas_h","value":"6271.6"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1285.0,814.0 1282.8,1113.0 1283.5,1779.0 1344.1,1779.0 1607.7,1779.0 1607.5,1705.0 1573.5,414.0 1282.6,416.2 1284.3,613.5 1279.8,793.0 1279.8,793.5 1285.0,814.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0027__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1279.8,345.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46948392301016,40.65620299805733]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,345.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46871745844342,40.65639830025788]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4675173744531,40.65364922417087]}},{"type":"Feature","properties":{"resourceCoords":[1279.8,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.46828383901985,40.653453921970325]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p28 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"248.7,1349.2 901.2,1381.0 1182.6,1567.6 1387.8,1826.8 1505.9,1817.8 1566.7,1345.5 1471.8,877.5 1578.9,624.5 1551.0,255.3 1443.1,204.1 1437.0,122.9 866.0,32.5 815.7,397.4 816.0,412.7 813.5,413.1 813.2,415.1 72.1,627.1 1.0,632.5 1.0,699.5 247.7,1349.1 248.7,1349.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[757.0,1006.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46958677199656,40.64066619344427]}},{"type":"Feature","properties":{"resourceCoords":[236.0,1160.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47086226007877,40.64045803685408]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p28 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"5379.6"},{"label":"split_canvas_w","value":"5830.8"},{"label":"split_canvas_h","value":"2272.4"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"595.0,1912.0 742.9,1912.0 1352.5,1880.7 907.3,1388.9 697.0,1381.5 658.4,1460.3 456.2,1446.3 329.2,1365.0 154.5,1376.5 154.9,1352.0 100.9,1349.5 84.0,1525.6 84.8,1886.5 595.2,1886.2 595.0,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0028__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[592.9,1525.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4704934,40.6332572]}},{"type":"Feature","properties":{"resourceCoords":[84.0,1525.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4706214,40.6341675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0030__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p30 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.95"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0030__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"19.1,583.3 52.7,1856.8 652.7,1860.5 726.7,1804.9 1071.4,1880.5 1592.4,1867.4 1579.4,153.5 1474.5,34.6 1242.1,71.0 1084.2,30.0 1002.1,439.6 998.2,495.0 991.0,495.0 990.5,497.1 405.4,500.5 405.1,551.2 65.1,549.5 1.0,548.2 1.0,578.5 19.1,583.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0030__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[728.0,1209.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.467893,40.632983]}},{"type":"Feature","properties":{"resourceCoords":[728.0,553.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.467942,40.634207]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.06"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1606.5 1612.0,1465.0 1597.1,1439.5 1591.4,218.1 1482.5,44.0 1319.9,25.8 108.2,42.3 45.8,1812.2 1.0,1814.6 1.0,1846.1 124.0,1849.0 761.9,1845.8 980.8,1846.4 1029.8,1847.6 1087.0,1849.0 1086.9,1852.0 1399.5,1875.8 1400.0,1866.5 1490.0,1873.5 1612.0,1606.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1087.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4737305,40.6584723]}},{"type":"Feature","properties":{"resourceCoords":[124.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.475323,40.657138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p6 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.40"},{"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":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1483.6,611.0 1612.0,517.1 1612.0,483.1 1562.5,466.9 1516.4,130.2 1250.1,91.5 1187.3,25.5 954.4,85.0 836.0,30.6 559.3,43.2 450.8,127.9 384.4,342.9 216.1,347.0 135.4,444.9 51.0,899.9 45.1,1644.9 93.1,1784.0 50.5,1844.0 798.5,1873.3 781.8,1912.0 841.5,1912.0 868.6,1892.0 1168.0,1829.2 1217.5,1908.3 1612.0,1653.8 1598.0,1632.0 1198.0,1081.1 1195.2,821.8 1282.1,758.4 1484.2,761.4 1483.6,611.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1598.0,1632.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472356,40.658309]}},{"type":"Feature","properties":{"resourceCoords":[1483.0,411.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.469559,40.65895]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"928.4,1885.2 928.0,1817.7 68.8,1846.5 51.8,261.1 136.8,37.0 953.1,22.1 1298.0,115.5 1467.4,78.0 1578.4,223.4 1580.5,736.1 1584.5,1216.7 1599.8,1867.7 1594.0,1868.0 1594.0,1875.5 928.4,1885.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1568.0,729.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47555882850037,40.655654399590645]}},{"type":"Feature","properties":{"resourceCoords":[1254.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47411003161002,40.65382843466085]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p8","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"101.4,3.7 96.3,514.2 93.5,992.9 99.7,1649.1 744.6,1815.5 1102.3,1912.0 1403.0,1912.0 1402.1,1636.4 1403.5,1316.0 1402.9,504.6 1405.0,18.0 750.0,27.0 622.7,25.1 622.4,1.0 493.8,1.0 117.2,24.9 101.4,3.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[418.0,1731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472856,40.654592]}},{"type":"Feature","properties":{"resourceCoords":[750.0,27.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.475323,40.657138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1948 | sanborn07570_007 p9","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T07:18:22Z","modified":"2026-10-19T07:18:22Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.4,863.0 95.3,65.8 423.1,66.0 742.0,64.8 1406.2,67.0 1612.0,214.1 1612.0,272.8 1612.0,319.0 1493.3,476.4 1612.0,562.6 1612.0,756.5 1578.8,780.4 1584.9,1327.0 1508.9,1524.6 1508.4,1761.6 1172.9,1772.2 931.2,1874.6 917.1,1901.3 663.4,1762.9 581.5,1912.0 506.9,1912.0 304.3,1719.6 367.7,1604.8 89.3,1528.0 89.3,1470.3 12.3,1449.2 89.3,1470.3 89.6,1177.8 92.4,863.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701948:07570_1948-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4736946,40.6573747]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4710386,40.6595814]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4675887,40.657191700000006]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4702447,40.654985]}}]}}]}