{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn07798_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Marietta, Pennsylvania | 1899 | 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":"9"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef-snap 6, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 40.05754,-76.55294 +/-1183m); p9__1 (tier 1, 40.05562,-76.56659 +/-212m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p2","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1214.5,1817.6 1214.0,1794.0 863.1,1799.3 491.4,1799.6 169.0,1794.0 37.0,1773.9 94.1,1739.4 52.8,1459.6 109.7,841.0 43.0,94.8 133.1,21.5 519.6,34.1 844.3,128.2 1383.6,62.7 1390.5,118.3 1488.3,123.7 1497.1,462.9 1561.6,504.5 1578.2,631.8 1571.6,1815.8 1534.1,1866.1 1393.8,1848.4 1382.7,1886.8 1214.5,1817.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1214.0,1794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5409883,40.0585015]}},{"type":"Feature","properties":{"resourceCoords":[169.0,1794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5416862,40.0603439]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1031.7,1860.0 1031.7,1863.7 674.9,1862.3 674.9,1868.5 351.2,1841.7 351.1,1837.5 102.8,1808.4 135.9,1617.1 133.2,1044.9 55.7,998.7 48.9,844.3 136.4,200.3 64.6,110.1 229.9,12.7 360.7,34.0 680.6,43.0 1049.5,46.6 1397.8,45.1 1398.0,68.5 1564.2,139.0 1550.5,184.8 1611.5,462.2 1593.0,1862.9 1031.7,1860.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1372.0,1299.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.54390727074754,40.05787779176324]}},{"type":"Feature","properties":{"resourceCoords":[1372.0,58.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5410361783344,40.058540313922]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1779.7 1.0,1826.0 1402.7,1826.2 1402.9,1848.2 1481.3,1907.8 1559.0,1844.3 1591.5,83.5 1033.3,77.8 1033.3,81.4 678.6,78.2 678.6,84.3 356.8,56.0 356.8,51.9 109.9,21.7 38.6,421.4 35.6,1740.6 1.0,1779.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1382.0,628.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5464721448535,40.05726051771953]}},{"type":"Feature","properties":{"resourceCoords":[1382.0,1847.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.54930385835661,40.05659488073945]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"256.2,1800.6 167.3,1477.0 100.4,1465.8 46.0,1261.9 40.6,195.5 121.0,106.2 120.6,150.9 1506.2,162.4 1506.2,184.1 1583.1,243.7 1539.6,278.6 1610.0,578.9 1562.6,1751.0 1598.3,1769.2 1512.2,1843.6 1512.1,1835.0 1132.2,1814.2 1131.5,1861.1 1054.9,1788.2 982.0,1736.6 976.8,1768.2 619.6,1730.9 624.7,1699.8 249.5,1840.6 256.2,1800.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1516.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.54915047979847,40.056571817885796]}},{"type":"Feature","properties":{"resourceCoords":[1516.0,868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.55088858439291,40.05615133774422]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"130.9,721.4 135.9,319.7 485.6,123.4 485.4,154.9 844.3,137.5 844.6,105.5 924.6,145.4 1011.6,205.8 1005.0,159.3 1384.0,122.1 1385.5,130.7 1459.3,44.0 1545.5,72.4 1583.9,339.6 1552.8,1738.6 1187.0,1730.7 1186.9,1734.0 472.6,1723.7 118.4,1716.9 130.9,721.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[482.0,702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.55490740945795,40.057119797114744]}},{"type":"Feature","properties":{"resourceCoords":[138.0,702.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5550367609709,40.05775936648842]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"179.0,1731.0 123.8,1692.4 117.8,76.5 475.2,77.5 1195.7,76.2 1195.7,72.8 1564.8,74.8 1554.2,1865.9 375.9,1885.6 179.2,1790.3 179.0,1731.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,1085.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.55970478357939,40.05592108623772]}},{"type":"Feature","properties":{"resourceCoords":[146.0,54.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.55744588320366,40.057457348496555]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1538.5,1885.6 194.2,1869.6 63.2,1821.7 35.2,88.1 77.5,36.6 1508.5,50.9 1562.3,208.8 1523.0,411.9 1590.1,865.8 1588.1,1834.0 1538.5,1885.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1404.0,417.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.56285660713678,40.05681613320825]}},{"type":"Feature","properties":{"resourceCoords":[74.0,1804.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.56616936088274,40.05427713709902]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p9 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3239.6"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1494.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1182.1,1810.2 1182.1,1750.4 1126.7,1711.2 1126.7,81.0 843.5,77.9 843.4,249.7 903.8,1065.5 846.6,1521.6 902.3,1750.6 1125.4,1782.4 1182.1,1810.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1126.7,1102.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5599513,40.0572384]}},{"type":"Feature","properties":{"resourceCoords":[1126.7,81.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5575095,40.0575037]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Marietta, Pennsylvania | 1899 | sanborn07798_004 p9 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.80"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4734.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1718.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T18:59:26Z","modified":"2026-10-19T18:59:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1508.1,1810.0 1508.1,776.0 1508.2,316.8 1362.3,1.0 1291.9,1.0 1300.7,19.8 1232.4,77.8 1217.3,404.5 1259.5,946.6 1218.3,1806.8 1508.1,1810.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd382m:g3824m:g3824mm:g3824mm_g077981899:07798_1899-0009__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1508.1,776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5550865,40.057767]}},{"type":"Feature","properties":{"resourceCoords":[1508.1,1810.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.5575095,40.0575037]}}]}}]}