{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07508_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Avoca, 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":"10"},{"label":"placed","value":"7"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 4, georef-snap 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 41.24417,-75.93837 +/-226m); p1__2 (tier 4, 41.33780,-75.74314 +/-771m); p2__1 (tier 1, 41.21464,-75.89905 +/-216m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p1 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.79"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3801.2"},{"label":"split_canvas_y","value":"3520.4"},{"label":"split_canvas_w","value":"1478.0"},{"label":"split_canvas_h","value":"1470.0"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1298.1,884.4 961.9,943.9 951.5,1029.4 952.8,1172.8 963.6,1236.0 1310.9,1240.9 1298.1,884.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[950.3,880.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.73727243391673,41.34335870257697]}},{"type":"Feature","properties":{"resourceCoords":[1319.8,880.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.73638943430389,41.34316676867076]}},{"type":"Feature","properties":{"resourceCoords":[1319.8,1247.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.73664311781017,41.34250590455192]}},{"type":"Feature","properties":{"resourceCoords":[950.3,1247.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.73752611742302,41.34269783845813]}},{"type":"Feature","properties":{"resourceCoords":[1002.2,990.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7372241,41.3431332]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p1 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.66"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5255.2"},{"label":"split_canvas_y","value":"3510.4"},{"label":"split_canvas_w","value":"1196.8"},{"label":"split_canvas_h","value":"1455.2"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1559.9,1217.7 1586.3,1161.5 1492.8,1023.8 1532.5,926.0 1532.1,897.9 1337.1,937.6 1347.0,1221.5 1559.9,1217.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1313.8,877.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.75007663618574,41.33477731046987]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,877.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.74942656680118,41.33450313124273]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1241.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.74986865519328,41.33390959750926]}},{"type":"Feature","properties":{"resourceCoords":[1313.8,1241.4],"type":"corner"},"geometry":{"type":"Point","coordinates":[-75.75051872457784,41.3341837767364]}},{"type":"Feature","properties":{"resourceCoords":[1536.2,1180.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.749961,41.33408]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p1 [5]","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":"4949.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"2702.8"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1518.2,1274.5 1262.9,1265.3 280.5,1317.0 128.9,1359.4 124.1,1458.8 63.0,1485.7 133.4,1811.1 88.7,1911.9 1507.0,1911.4 1568.5,1333.4 1518.2,1274.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0001__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[822.0,1505.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.74899259258862,41.33556667070099]}},{"type":"Feature","properties":{"resourceCoords":[204.0,1505.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.75036231670748,41.336019595821945]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p2 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3275.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3176.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1831.2 1612.0,1818.5 1555.9,1807.3 1532.2,1721.0 1582.4,693.5 1517.8,401.9 1612.0,362.2 1612.0,205.7 1517.4,231.7 1473.4,127.8 1268.8,114.4 935.8,252.5 876.9,1529.9 818.9,1549.1 818.9,1562.3 818.9,1577.3 1153.9,1785.7 1178.7,1690.9 1612.0,1831.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.5,691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.73874566521602,41.342428570197384]}},{"type":"Feature","properties":{"resourceCoords":[1225.5,120.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7383812047176,41.34342405019439]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p3","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.7,1749.8 55.0,1481.5 89.0,491.1 167.4,143.5 487.9,100.0 533.0,67.3 941.2,169.7 936.0,74.0 1382.4,75.2 1378.7,63.3 1436.4,56.7 1510.4,156.7 1584.6,1058.9 1546.0,1694.7 1591.4,1743.4 1480.2,1829.0 1480.5,1837.2 1231.0,1838.6 1230.9,1834.2 957.3,1822.2 957.2,1812.6 691.9,1845.5 691.9,1851.3 431.6,1852.0 431.4,1836.7 275.6,1859.2 151.7,1749.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[426.0,804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7415247,41.3400934]}},{"type":"Feature","properties":{"resourceCoords":[936.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7394927,41.3407077]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.9,1742.5 60.4,1773.1 45.1,1180.6 130.2,1135.7 131.9,916.5 312.1,759.4 52.9,250.8 62.0,140.3 21.3,103.2 179.2,83.0 179.1,98.5 442.3,102.0 442.3,96.2 711.1,67.2 711.0,77.0 987.4,93.6 987.4,98.0 1239.7,100.7 1239.5,92.4 1353.3,7.7 1569.0,247.2 1568.3,1216.2 1606.2,1276.3 1409.4,1485.4 1422.7,1540.6 1148.2,1570.8 1142.8,1548.3 884.7,1656.0 375.4,1754.3 381.9,1781.1 302.9,1742.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1240.0,1082.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.74201288034155,41.33591364136312]}},{"type":"Feature","properties":{"resourceCoords":[1240.0,235.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.74091474187391,41.33722308057122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Avoca, Pennsylvania | 1908 | sanborn07508_003 p5","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T09:40:21Z","modified":"2026-10-19T09:40:21Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"70.4,276.4 47.9,638.8 134.2,1100.7 132.2,1750.6 77.9,1836.7 236.4,1881.8 1538.6,1869.9 1581.5,1659.3 1574.0,121.7 1526.4,47.0 1288.7,81.1 1269.7,24.2 1036.1,175.8 1035.9,230.9 770.3,196.2 770.4,173.8 502.4,215.8 1.0,191.1 1.0,218.7 70.4,276.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824am:g3824am_g075081908:07508_1908-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1035.0,1071.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7429009,41.3335262]}},{"type":"Feature","properties":{"resourceCoords":[1035.0,560.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-75.7424949,41.3344393]}}]}}]}