{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07570_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Catasauqua, Pennsylvania | 1908 | 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":"52"},{"label":"placed","value":"26"},{"label":"unplaced","value":"26"},{"label":"fit sources","value":"georef 14, georef-snap 10, snap:0 1, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"15 sheet(s) cut into 40 panels"},{"label":"unplaced pages","value":"p13__2 (tier 1, 40.65104,-75.46390 +/-100m); p13__3 (tier 1, 40.65763,-75.47147 +/-200m); p14__1 (tier 1, 40.65287,-75.45844 +/-203m); p15__1 (tier 1, 40.65523,-75.47806 +/-100m); p15__2 (tier 1, 40.65559,-75.47868 +/-100m); p15__3 (tier 1, 40.65548,-75.47850 +/-100m); p15__4 (tier 1, 40.64233,-75.46827 +/-100m); p16__1 (tier 1, 40.64183,-75.46679 +/-209m); p16__2 (tier 1, 40.64666,-75.47221 +/-199m); p17__1 (tier 1, 40.65674,-75.47527 +/-124m); p18__1 (tier 1, 40.67348,-75.49238 +/-100m); p18__3 (tier 1, 40.63256,-75.47205 +/-124m); p1__1 (tier 3, 40.66108,-75.48154 +/-462m); p1__3 (tier 3, 40.66108,-75.48154 +/-462m); p2 (tier 2, 40.65849,-75.47955 +/-100m); p21__1 (tier 1, 40.64901,-75.48036 +/-100m); p22__2 (tier 1, 40.65823,-75.48448 +/-135m); p22__3 (tier 1, 40.65685,-75.48921 +/-100m); p22__4 (tier 1, 40.65835,-75.48472 +/-119m); p23__2 (tier 1, 40.65838,-75.48777 +/-100m); p24__1 (tier 1, 40.65744,-75.48781 +/-263m); p24__2 (tier 1, 40.65966,-75.48552 +/-125m); p25__2 (tier 1, 40.64056,-75.46975 +/-120m); p25__3 (tier 1, 40.67297,-75.49681 +/-117m); p4__1 (tier 1, 40.65869,-75.48836 +/-216m); p4__2 (tier 1, 40.65803,-75.48740 +/-130m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.3,182.4 112.4,277.4 53.7,561.7 38.0,676.1 38.1,767.3 88.3,1146.5 135.0,1563.7 139.5,1726.0 477.5,1723.2 477.3,1654.2 824.2,1748.0 823.8,1861.9 1213.6,1788.6 1586.9,1843.0 1473.6,1042.0 1612.0,720.2 1612.0,707.4 1578.5,618.9 1612.0,559.7 1612.0,379.2 1414.6,327.1 1414.0,268.7 1197.8,270.5 1019.2,223.8 758.8,155.3 308.9,41.5 135.8,1.0 117.0,1.0 119.3,182.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1434.0,1590.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46853157479781,40.65403502310899]}},{"type":"Feature","properties":{"resourceCoords":[2101.0,493.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46936802467023,40.65629956475291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1329.6,1838.5 1330.3,1757.8 1419.2,1755.6 1407.4,1016.0 1394.7,382.0 1383.6,379.2 1443.7,322.5 1587.9,322.8 1466.8,185.4 1297.7,232.6 991.8,123.6 886.1,151.8 789.7,49.2 338.8,56.2 328.2,1.0 213.2,1.0 120.2,349.3 189.6,348.9 193.5,688.9 196.8,1031.8 197.6,1370.3 237.5,1370.1 186.7,1912.0 203.4,1912.0 267.5,1851.7 833.0,1869.2 1212.9,1786.6 1329.6,1838.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[904.0,350.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46862550043909,40.651695482294684]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,680.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46830759066847,40.650644044554376]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"176.0,1.0 94.8,1.0 46.8,111.2 56.9,368.1 91.8,365.0 91.1,408.8 51.1,394.2 30.6,854.8 76.6,1866.9 119.9,1805.0 149.9,1868.5 516.5,1876.5 744.3,1761.0 998.7,1866.2 1580.8,1842.2 1492.3,1332.1 1575.6,1119.1 1578.3,275.7 1612.0,245.4 1612.0,100.3 1554.8,40.8 1552.1,51.9 918.3,70.4 179.0,88.9 176.0,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1246.0,844.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.46695460473752,40.64964083700527]}},{"type":"Feature","properties":{"resourceCoords":[144.0,72.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47012239066629,40.649163267178466]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0013__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 | 1908 | sanborn07570_005 p13 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.66"},{"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":"3090.0"},{"label":"split_canvas_h","value":"2214.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"725.7,57.6 583.3,37.9 568.4,127.9 487.2,133.8 410.3,59.0 317.1,46.5 102.1,46.0 94.4,513.9 415.7,516.5 689.9,517.4 725.7,57.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[728.5,517.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472356,40.658309]}},{"type":"Feature","properties":{"resourceCoords":[102.1,46.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.474274,40.658026]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0014__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 | 1908 | sanborn07570_005 p14 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.44"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3000.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1507.4,1824.7 1604.7,373.6 1569.7,196.9 1495.0,148.0 1516.2,44.3 1222.0,33.5 1148.0,33.9 906.5,156.9 810.8,284.5 800.5,1628.3 877.9,1799.4 1507.4,1824.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[750.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.45618051772749,40.65433913947017]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.45534851619544,40.65288532328034]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.45956155957606,40.65147785002552]}},{"type":"Feature","properties":{"resourceCoords":[750.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4603935611081,40.65293166621535]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0017__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 | 1908 | sanborn07570_005 p17 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.54"},{"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":"4209.2"},{"label":"split_canvas_h","value":"2082.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0017__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1015.2,484.4 1022.5,65.3 868.2,16.5 131.0,36.3 128.6,1.0 72.5,1.0 15.8,467.6 141.6,471.0 140.7,507.5 1015.2,484.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0017__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[486.1,480.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4704934,40.6332572]}},{"type":"Feature","properties":{"resourceCoords":[66.0,61.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.469572,40.634176]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0018__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 | 1908 | sanborn07570_005 p18 [2]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1341.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"5110.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"727.5,1912.0 738.6,1912.0 766.8,1912.0 767.0,1776.6 1271.0,1824.8 1272.6,1884.9 1554.0,1858.4 1567.4,1849.4 1588.5,1244.1 1510.0,1138.0 1582.0,958.2 1602.3,562.7 1573.0,416.9 1494.7,378.4 1536.2,202.8 1420.6,92.8 963.3,20.7 544.2,80.3 514.9,489.9 437.7,731.2 438.0,751.0 438.0,751.0 431.4,751.0 412.8,809.0 394.9,1354.7 396.7,1598.0 396.6,1598.0 396.6,1598.0 386.9,1598.2 380.1,1803.5 425.6,1868.5 725.4,1871.0 727.5,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[796.2,604.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.470853,40.636281]}},{"type":"Feature","properties":{"resourceCoords":[1243.1,1493.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.469566,40.63477]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__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 | 1908 | sanborn07570_005 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":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"117.1,1912.0 146.7,1880.8 1582.0,1849.2 1530.0,1657.4 1580.1,1572.5 1586.9,611.5 1612.0,590.5 1585.1,578.1 1602.2,547.4 1284.0,373.1 1256.2,357.8 1268.1,357.5 1275.1,345.1 1377.9,275.8 1468.4,91.6 1415.7,41.5 871.3,196.4 763.7,481.2 152.4,495.1 117.2,604.3 127.6,604.0 111.2,878.8 93.8,878.0 86.2,1212.7 84.4,1539.9 72.8,1912.0 117.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1245.0,365.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47248615342832,40.647037797843545]}},{"type":"Feature","properties":{"resourceCoords":[1102.0,1444.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47460730922215,40.645869161936155]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__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 | 1908 | sanborn07570_005 p19 [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":"3044.8"},{"label":"split_canvas_h","value":"1942.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"82.0,391.6 46.2,391.9 61.2,483.2 730.4,472.3 737.7,163.9 611.9,47.2 416.8,52.6 418.9,44.3 210.2,56.4 99.3,1.0 82.5,1.0 77.0,21.9 82.0,391.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0019__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[650.2,392.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47090793917282,40.6465810091182]}},{"type":"Feature","properties":{"resourceCoords":[76.0,392.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4722253147829,40.646331120089485]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"137.0,1811.2 144.4,1236.8 60.4,1003.1 111.7,892.0 75.6,790.4 140.3,740.6 138.6,394.2 54.1,124.5 232.5,111.8 232.1,126.8 553.4,120.5 876.5,122.5 1197.4,117.4 1197.4,113.0 1511.2,106.5 1576.3,122.6 1543.8,158.6 1516.4,646.1 1572.8,1842.4 1463.8,1810.1 1464.5,1820.5 1192.2,1810.8 1192.6,1793.6 861.4,1794.1 537.7,1800.2 169.3,1797.7 170.4,1841.5 137.0,1811.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[237.0,1338.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4777604043987,40.64735691030003]}},{"type":"Feature","properties":{"resourceCoords":[862.0,1792.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47589083427766,40.64750967693566]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__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 | 1908 | sanborn07570_005 p21 [2]","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":"3128.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3324.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"984.9,772.3 1014.8,772.3 1014.8,778.1 1014.8,809.7 1036.0,836.2 1119.9,1723.7 1344.0,1849.8 1516.7,1868.7 1544.8,1787.9 1533.4,1608.0 1548.6,1608.5 1544.8,1284.6 1549.5,959.0 1547.1,635.5 1542.7,635.5 1538.7,319.1 1555.4,253.7 1450.6,157.2 1396.2,159.0 1387.3,139.1 1224.1,99.0 1063.1,110.9 913.5,273.4 854.6,609.4 984.9,772.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1138.0,329.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4781444591704,40.65115052155734]}},{"type":"Feature","properties":{"resourceCoords":[1540.0,1278.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.47917393498386,40.649431075224726]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__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 | 1908 | sanborn07570_005 p21 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.43"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3089.2"},{"label":"split_canvas_w","value":"4059.2"},{"label":"split_canvas_h","value":"4562.8"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"948.4,812.9 29.4,811.0 52.5,1876.5 765.7,1889.1 956.6,1832.5 997.7,1065.5 948.4,812.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0021__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[759.9,824.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4717548,40.6402771]}},{"type":"Feature","properties":{"resourceCoords":[192.9,824.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472229,40.641225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0022__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 | 1908 | sanborn07570_005 p22 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5502.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"55.1,154.9 39.1,667.0 120.7,752.2 137.2,1020.4 231.2,1111.5 1274.8,1123.3 1275.3,1126.0 1281.3,1126.1 1281.3,1126.5 1281.0,1157.7 1281.0,1159.1 1315.4,1357.2 1392.8,1371.5 1573.1,1251.5 1561.4,82.1 1539.3,53.5 1475.0,86.5 617.0,102.7 578.7,73.8 575.8,109.5 58.0,114.0 55.1,154.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1058.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4870322,40.6588412]}},{"type":"Feature","properties":{"resourceCoords":[58.0,114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.489354,40.657994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__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 | 1908 | sanborn07570_005 p23 [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":"5394.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"406.3,57.4 170.9,30.0 34.2,96.3 86.1,290.9 40.6,964.0 86.5,1867.4 639.8,1818.2 639.8,1779.8 619.5,1767.0 634.5,844.0 1104.7,845.0 1110.2,845.0 1158.3,514.5 1176.2,493.4 1189.0,431.2 954.4,218.2 938.0,269.0 681.1,139.2 678.9,146.1 399.6,82.6 406.3,57.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[620.8,342.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.48947576853827,40.660936910624486]}},{"type":"Feature","properties":{"resourceCoords":[82.0,385.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49064610198488,40.66051028620493]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__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 | 1908 | sanborn07570_005 p23 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.64"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2560.0"},{"label":"split_canvas_y","value":"3380.0"},{"label":"split_canvas_w","value":"3892.0"},{"label":"split_canvas_h","value":"4272.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"685.3,1675.2 687.0,1759.3 965.7,1735.2 965.7,1728.1 1243.3,1772.5 1243.5,1720.3 1525.1,1848.7 1531.8,1910.3 1586.8,1808.7 1540.2,878.7 678.6,871.4 685.3,1675.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0023__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.0,1267.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.489582,40.66218]}},{"type":"Feature","properties":{"resourceCoords":[1522.0,1267.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.488217,40.662241]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0024__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 | 1908 | sanborn07570_005 p24 [3]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.75"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5102.4"},{"label":"split_canvas_y","value":"4448.0"},{"label":"split_canvas_w","value":"1349.6"},{"label":"split_canvas_h","value":"3204.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0024__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1426.5,1887.8 1578.4,1835.6 1573.8,1514.9 1517.6,1387.3 1573.7,1304.4 1532.8,1181.1 1430.5,1135.9 1345.5,1135.0 1324.1,1211.2 1309.6,1848.3 1426.5,1887.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0024__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1320.5,1390.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.492008,40.668835]}},{"type":"Feature","properties":{"resourceCoords":[1578.0,1869.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.490719,40.66849]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0025__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 | 1908 | sanborn07570_005 p25 [1]","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":"5405.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"58.2,1845.5 1010.4,1846.0 1141.1,1552.3 1188.4,1575.9 1129.5,1522.0 1122.1,1357.9 1176.4,1309.2 1111.2,1229.9 1296.0,769.4 1094.2,624.3 629.5,465.4 596.9,425.7 684.6,319.0 620.8,270.4 638.5,208.0 363.5,35.4 45.6,56.2 74.4,459.4 75.6,722.9 69.3,1002.5 58.2,1845.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[84.0,728.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4893223003876,40.671857975198606]}},{"type":"Feature","properties":{"resourceCoords":[923.2,1466.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.48927040254354,40.66978216275938]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p26","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"28"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"67.6,1796.2 72.9,1524.4 75.1,1253.7 69.3,945.6 73.2,419.3 99.8,419.8 82.3,132.2 94.8,136.3 288.7,74.9 862.5,150.3 1087.0,77.1 1525.8,46.5 1556.6,452.9 1558.9,718.6 1553.8,1000.6 1546.1,1850.6 573.2,1854.1 563.1,1912.0 562.6,1802.6 67.6,1796.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1049.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4906367,40.6722438]}},{"type":"Feature","properties":{"resourceCoords":[1049.0,1809.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.492122,40.671223]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__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 | 1908 | sanborn07570_005 p27 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5092.8"},{"label":"split_canvas_w","value":"4100.0"},{"label":"split_canvas_h","value":"2559.2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"63.8,1291.8 21.6,1340.0 34.0,1910.0 990.6,1907.8 1021.7,1449.4 1018.0,1283.6 527.2,1285.8 297.2,1291.2 63.8,1291.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[535.0,1565.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49420265762203,40.67222615391265]}},{"type":"Feature","properties":{"resourceCoords":[1008.0,1565.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.49343957790259,40.67156452554642]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__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 | 1908 | sanborn07570_005 p27 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"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":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1575.6,144.9 1435.5,98.4 1438.8,51.6 1253.8,90.4 1189.1,30.9 307.1,15.9 50.5,78.4 50.8,705.7 116.8,796.3 49.1,913.1 63.8,1265.0 841.3,1274.4 1025.0,1273.2 1025.0,1276.6 1028.6,1276.6 1080.8,1804.1 1316.3,1809.4 1548.5,1809.7 1555.8,1537.8 1560.0,1267.0 1556.5,958.6 1564.3,432.1 1590.9,432.7 1575.6,144.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0027__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1060.0,982.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4930237,40.6742729]}},{"type":"Feature","properties":{"resourceCoords":[1077.0,422.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.491995,40.674948]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p3","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.21"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"61.5,1606.1 166.8,1510.8 149.5,145.2 208.0,31.7 1487.6,41.9 1502.9,1661.3 1612.0,1844.8 1612.0,1863.1 1488.0,1864.0 1163.5,1856.4 834.0,1864.0 500.2,1865.9 500.0,1912.0 21.4,1606.0 61.5,1606.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[834.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.476368,40.656263]}},{"type":"Feature","properties":{"resourceCoords":[1488.0,1864.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.475323,40.657138]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p5","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"107.9,1863.0 38.0,1817.8 48.0,130.6 135.2,31.3 787.6,31.9 1253.3,328.9 1255.7,328.9 1255.7,283.9 1581.5,280.9 1574.2,754.9 1569.3,1225.8 1572.3,1871.4 914.1,1868.6 914.4,1848.1 108.3,1843.0 107.9,1863.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1256.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4740405,40.6538365]}},{"type":"Feature","properties":{"resourceCoords":[1256.0,755.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.476049,40.655227]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p6","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"22"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"432.0,32.0 748.5,37.2 869.4,35.5 870.3,19.2 1392.5,29.2 1389.7,507.6 1389.2,1305.4 1387.4,1620.3 1388.0,1912.0 1170.4,1912.0 997.8,1865.3 740.7,1795.5 296.5,1679.2 107.0,1631.0 101.8,985.9 105.2,515.3 110.8,41.6 432.0,32.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[747.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.473624,40.65595]}},{"type":"Feature","properties":{"resourceCoords":[432.0,32.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.475855,40.656713]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.48"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1469.2,765.8 1393.7,764.9 1267.2,1080.0 1190.6,1079.7 1584.0,1617.0 1607.5,1648.7 1208.6,1901.5 1192.0,1871.5 659.3,1855.3 584.7,1743.8 441.4,1715.4 73.6,1806.3 44.2,1428.4 92.3,1110.4 37.4,824.2 121.3,550.5 124.8,119.6 401.0,40.3 876.6,119.6 1042.5,33.4 1393.4,65.7 1508.0,125.6 1476.8,283.1 1525.5,300.2 1525.8,411.9 1612.0,429.0 1612.0,466.4 1467.9,574.3 1469.2,765.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1584.0,1617.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.472356,40.658309]}},{"type":"Feature","properties":{"resourceCoords":[1188.0,421.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.469686,40.659456]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p8","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"259.0,1691.1 262.2,1517.2 69.8,1462.7 72.6,1117.7 77.6,807.6 86.0,22.0 408.8,24.5 723.2,25.4 1377.5,32.2 1332.2,92.3 1505.6,377.3 1460.5,436.3 1612.0,547.9 1612.0,708.6 1612.0,773.4 1583.0,799.5 1556.4,1306.1 1497.2,1369.0 1554.8,1433.0 1481.8,1469.8 1574.6,1540.7 1563.4,1850.0 1456.8,1849.5 1221.0,1694.9 1013.6,1775.5 999.2,1856.0 763.5,1894.4 551.3,1873.2 298.5,1753.2 255.2,1849.2 224.3,1749.8 259.0,1691.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4736021,40.6573305]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4709273,40.6595844]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4674037,40.6571779]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.4700785,40.654924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Catasauqua, Pennsylvania | 1908 | sanborn07570_005 p9","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T11:53:24Z","modified":"2026-10-19T11:53:24Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"51.5,144.4 49.8,1170.1 192.1,1491.6 148.2,1766.4 241.5,1779.3 297.8,1838.8 297.8,1822.2 836.4,1870.6 836.0,1831.0 1172.4,1828.8 1513.1,1824.3 1507.4,1662.0 1457.8,1245.4 1405.0,866.6 1404.3,775.5 1419.2,661.0 1475.8,376.4 1482.0,281.5 1478.4,99.2 1493.0,99.0 1478.3,93.5 813.9,103.0 813.8,82.3 1.0,92.2 1.0,113.1 51.5,144.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824cm:g3824cm_g075701908:07570_1908-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1159.0,98.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.4740405,40.6538365]}},{"type":"Feature","properties":{"resourceCoords":[836.0,1831.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.471538,40.6512227]}}]}}]}