{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07508_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Avoca, Pennsylvania | 1903 | 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":"6"},{"label":"placed","value":"4"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 2, georef-snap 1, georef-street 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 41.27478,-75.83543 +/-198m); p3 (tier 1, 41.33953,-75.74101 +/-257m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1903 | sanborn07508_002 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5068.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2584.0"}],"created":"2026-10-19T09:32:36Z","modified":"2026-10-19T09:32:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1346.7,1325.0 949.9,1298.2 138.5,1375.2 55.4,1583.0 182.0,1897.6 1548.4,1910.8 1581.2,1355.7 1536.6,1309.2 1419.8,1400.2 1346.7,1325.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[824.0,1532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.74898794609065,41.33556426031941]}},{"type":"Feature","properties":{"resourceCoords":[186.0,1532.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7503861805865,41.3360139694557]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1903 | sanborn07508_002 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.41"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:32:36Z","modified":"2026-10-19T09:32:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.8,901.5 102.3,806.7 55.0,718.9 127.3,480.2 64.6,163.7 453.2,49.3 818.4,119.0 936.5,35.8 1480.1,62.7 1533.2,141.9 1587.9,908.6 1545.7,1186.1 1579.2,1732.8 1524.4,1796.0 54.5,1810.5 38.8,901.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[935.0,908.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7361534,41.3446927]}},{"type":"Feature","properties":{"resourceCoords":[935.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7357525,41.3462119]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1903 | sanborn07508_002 p4","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:32:36Z","modified":"2026-10-19T09:32:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"365.0,1552.7 40.5,1410.8 130.3,962.8 293.2,877.0 332.2,774.1 83.9,245.0 135.3,134.2 448.9,135.4 526.2,51.7 929.9,30.6 1541.5,173.1 1559.7,1230.3 1599.8,1281.0 1444.9,1604.7 1435.5,1566.2 1155.3,1566.9 1153.0,1557.2 899.1,1675.0 909.0,1715.7 404.5,1606.8 365.0,1552.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.7431709,41.3388188]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.7398357,41.3372323]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.74234170000001,41.3342623]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.7456769,41.3358488]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1903 | sanborn07508_002 p5","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:32:36Z","modified":"2026-10-19T09:32:36Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1297.9,80.2 1455.4,49.4 1586.2,119.3 1581.2,1717.6 1520.0,1784.3 1277.3,1744.8 1119.8,1775.6 1127.0,1819.0 820.4,1793.7 754.6,1869.6 432.4,1887.8 167.0,1871.4 187.1,1795.8 129.8,1784.8 124.8,1053.2 51.5,1040.0 23.8,667.5 63.3,88.7 46.8,49.3 504.9,269.8 504.8,228.6 775.0,174.2 775.0,184.1 1043.6,247.9 1043.7,286.9 1266.6,12.7 1297.9,80.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081903:07508_1903-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1048.0,1067.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7429009,41.3335262]}},{"type":"Feature","properties":{"resourceCoords":[510.0,1067.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7441662,41.3338502]}}]}}]}