{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07839_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mount Holly Springs, Pennsylvania | 1929 | 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":"11"},{"label":"placed","value":"4"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 40.20870,-77.00559 +/-178m); p5__1 (tier 1, 40.11601,-77.19179 +/-180m); p5__2 (tier 1, 40.11482,-77.21699 +/-177m); p5__3 (tier 1, 40.11286,-77.19054 +/-169m); p6__1 (tier 1, 40.11427,-77.19229 +/-224m); p6__2 (tier 4, 40.11846,-77.19043 +/-488m); p6__3 (tier 4, 40.11846,-77.19043 +/-488m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mount Holly Springs, Pennsylvania | 1929 | sanborn07839_004 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1792.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5860.0"}],"created":"2026-10-19T04:34:38Z","modified":"2026-10-19T04:34:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1581.5,1859.0 1572.0,1722.7 1582.4,516.9 994.6,459.4 904.5,577.0 230.8,608.7 112.5,671.3 46.8,821.6 20.1,1101.3 44.1,1875.7 3.3,1906.1 77.3,1912.0 880.0,1912.0 1112.5,1801.0 1112.7,1773.5 1581.5,1859.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[805.0,1278.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.19128035970962,40.122511889229685]}},{"type":"Feature","properties":{"resourceCoords":[490.0,555.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.19230287667956,40.12376687818474]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mount Holly Springs, Pennsylvania | 1929 | sanborn07839_004 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:34:38Z","modified":"2026-10-19T04:34:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1504.2,1788.5 1503.3,1870.4 1568.0,1817.4 1526.1,1602.5 1584.6,1475.4 1586.1,1436.7 1489.3,174.5 1023.5,92.8 1023.7,120.0 793.7,231.8 31.1,239.6 37.5,399.1 39.6,1667.7 1.0,1757.7 1.0,1786.0 91.0,1788.0 1027.6,1798.7 1504.2,1788.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1024.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.1903147,40.121452]}},{"type":"Feature","properties":{"resourceCoords":[91.0,1788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.1920573,40.1182587]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mount Holly Springs, Pennsylvania | 1929 | sanborn07839_004 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"14"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:34:38Z","modified":"2026-10-19T04:34:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"45.4,1621.9 40.5,318.7 85.4,211.2 188.3,212.3 1132.0,213.0 1612.0,197.7 1612.0,280.2 1579.1,307.7 1566.1,1023.8 1586.1,1542.8 1573.6,1543.1 1568.8,1682.1 1149.2,1639.3 1148.4,1609.3 508.0,1614.0 198.3,1621.4 45.4,1621.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[508.0,1614.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.1908377,40.1157278]}},{"type":"Feature","properties":{"resourceCoords":[1132.0,213.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.189761,40.1184848]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mount Holly Springs, Pennsylvania | 1929 | sanborn07839_004 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T04:34:38Z","modified":"2026-10-19T04:34:38Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1475.0,1.0 1462.6,1.0 1454.6,137.7 1039.8,85.3 1039.7,55.5 405.0,45.0 98.0,45.0 1.0,43.0 1.0,268.9 39.6,282.2 35.7,1853.6 1492.2,1854.2 1577.3,1629.4 1524.8,1174.2 1603.4,991.6 1547.1,139.3 1475.6,41.8 1475.0,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g078391929:07839_1929-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[405.0,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.1908377,40.1157278]}},{"type":"Feature","properties":{"resourceCoords":[98.0,45.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-77.1915887,40.1156394]}}]}}]}