{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn09050_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Norfolk, Virginia | 1907 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"2"},{"label":"placed","value":"2"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef-snap 2"},{"label":"key map","value":"none"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norfolk, Virginia | 1907 | sanborn09050_003 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.22"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T02:52:37Z","modified":"2026-10-18T02:52:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0001/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1142.4,1856.1 987.5,1854.9 987.7,1871.5 836.2,1875.9 836.2,1873.8 692.6,1868.0 692.7,1852.7 482.0,1851.0 481.9,1880.7 387.4,1895.5 389.0,1873.2 362.0,1861.8 94.5,1862.2 58.7,1770.3 74.8,1630.3 62.6,1570.0 72.4,1366.4 25.2,1006.2 77.4,536.5 62.7,262.3 65.0,232.8 139.9,199.4 154.6,152.2 284.3,132.3 309.4,95.2 404.0,96.7 423.1,114.8 489.6,119.9 534.8,86.1 714.7,40.2 976.1,22.8 1520.8,41.5 1572.0,101.1 1574.6,831.3 1538.8,1281.8 1552.8,1810.4 1531.0,1853.3 1526.7,1890.9 1473.3,1868.0 1473.5,1862.0 1456.1,1856.2 1307.0,1856.3 1307.0,1857.3 1197.5,1856.5 1142.4,1856.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[693.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.31697612847864,36.9495690967973]}},{"type":"Feature","properties":{"resourceCoords":[843.0,1861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.31687342758494,36.94847973342335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norfolk, Virginia | 1907 | sanborn09050_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.47"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T02:52:37Z","modified":"2026-10-18T02:52:37Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"491.1,94.8 490.9,65.4 700.2,65.3 700.2,80.5 843.0,85.2 843.0,87.3 993.4,81.7 993.1,65.2 1147.0,65.2 1147.0,65.5 1201.8,65.1 1310.5,65.1 1310.5,64.1 1458.6,62.9 1476.0,68.5 1475.9,74.4 1529.1,96.7 1517.9,202.2 1539.7,262.7 1518.8,407.0 1538.9,465.5 1504.7,809.9 1509.6,956.0 1549.2,1052.7 1537.4,1337.8 1508.0,1418.8 1503.0,1492.2 1529.0,1543.8 1492.3,1596.6 1487.7,1664.5 1507.7,1697.2 1507.8,1748.9 1479.6,1758.0 1463.5,1804.9 1397.2,1804.2 1426.7,1693.7 1452.6,1665.9 1448.1,1595.5 1352.4,1592.7 1186.8,1559.5 1064.1,1573.3 1012.0,1608.5 946.4,1624.4 941.8,1692.3 926.4,1702.4 844.7,1709.8 762.7,1695.0 609.9,1636.8 607.7,1614.5 625.0,1602.8 704.8,1597.1 709.2,1531.0 641.5,1414.0 568.0,1409.0 532.6,1441.7 460.6,1442.3 442.2,1524.1 392.9,1517.1 392.6,1467.3 430.8,1447.7 435.2,1381.6 421.4,1367.8 451.4,1332.9 456.5,1257.6 424.3,1214.9 320.7,1165.5 295.5,1128.8 278.7,994.9 308.4,936.0 314.1,823.9 271.5,717.7 268.6,623.5 224.8,535.7 255.6,487.9 260.7,412.7 226.8,285.0 234.5,254.2 306.9,218.4 328.2,230.9 411.2,231.0 420.1,154.1 396.6,119.3 397.2,110.3 491.1,94.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd388m:g3884m:g3884nm:g3884nm_g090501907:09050_1907-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1008.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.31676281955625,36.947321936495534]}},{"type":"Feature","properties":{"resourceCoords":[1008.0,731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-76.32280332590979,36.94699703956516]}}]}}]}