{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01161_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Norwich, Connecticut | 1909 | 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":"47"},{"label":"placed","value":"36"},{"label":"unplaced","value":"11"},{"label":"fit sources","value":"georef-snap 25, georef 11"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 12 panels"},{"label":"unplaced pages","value":"p36__1 (tier 1, 41.51986,-72.08055 +/-223m); p36__2 (tier 2, 41.52083,-72.08154 +/-100m); p38__1 (tier 1, 41.51969,-72.07559 +/-138m); p38__2 (tier 1, 41.54467,-72.05330 +/-131m); p38__3 (tier 1, 41.54384,-72.05234 +/-129m); p38__4 (tier 1, 41.51861,-72.07522 +/-123m); p39__1 (tier 1, 41.51256,-72.07397 +/-114m); p39__2 (tier 1, 41.51468,-72.07502 +/-207m); p39__4 (tier 1, 41.50929,-72.08460 +/-138m); p40__1 (tier 4, 41.52840,-72.07369 +/-2130m); p40__2 (tier 1, 41.55528,-72.05089 +/-198m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"172.0,1864.5 254.9,1888.5 722.4,1884.6 745.8,1904.2 873.1,1819.8 820.1,1783.1 1062.0,1514.8 1198.9,1522.4 1612.0,1009.6 1593.5,985.9 1300.2,608.4 1563.0,373.5 1420.5,256.5 1297.8,167.3 1220.8,122.9 1174.6,108.3 1153.3,103.6 1101.2,95.0 993.7,95.7 185.8,147.5 169.2,148.5 174.5,248.2 38.9,1458.0 1.0,1456.5 1.0,1525.1 1.1,1525.2 103.6,1553.1 172.0,1864.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1287.0,591.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07381306313033,41.5298144682445]}},{"type":"Feature","properties":{"resourceCoords":[646.0,1503.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07656014620405,41.529703885238554]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p11","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"207.2,1518.0 76.3,1268.5 78.7,205.1 223.9,248.1 218.1,184.5 576.0,197.5 657.4,306.4 1310.1,293.9 1287.6,398.0 1499.3,1265.8 1497.5,1272.1 1452.0,1441.0 1447.8,1456.8 1047.4,1508.7 1034.5,1568.5 1028.2,1597.7 694.7,1806.7 702.0,1703.9 447.1,1703.7 445.8,1699.8 207.4,1576.7 207.2,1518.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[732.0,1241.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0756406,41.5271337]}},{"type":"Feature","properties":{"resourceCoords":[1452.0,1441.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0738647,41.5267197]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1467.1,1815.8 1480.3,1770.1 1509.7,1596.2 1522.5,1418.0 1540.9,947.3 1551.1,771.4 1560.1,613.0 1552.8,548.3 1465.2,555.2 1381.0,137.8 1360.8,157.4 1195.2,1.0 1193.5,1.0 1167.5,42.4 331.0,20.4 140.8,74.6 100.2,153.2 21.4,554.9 87.3,726.4 37.1,903.1 103.0,1005.3 35.8,1153.9 51.4,1502.1 1.0,1566.8 1.0,1657.8 1029.2,1715.4 1047.3,1860.2 1196.8,1842.2 1432.3,1819.1 1467.1,1815.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1531.0,1289.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08167723947417,41.523961951422656]}},{"type":"Feature","properties":{"resourceCoords":[1531.0,513.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08006564615116,41.52471955434859]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p13","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"343.0,105.6 423.1,135.5 560.8,169.8 595.4,176.7 642.3,185.2 819.0,196.7 998.1,191.3 1470.0,161.4 1553.9,157.7 1612.0,1062.3 1612.0,1288.9 1575.5,1352.1 1476.2,1303.1 1371.0,1366.3 1201.2,1693.8 987.0,1711.3 858.8,1804.4 670.7,1785.6 59.9,1578.5 55.8,1551.2 336.8,532.8 327.5,459.3 287.7,376.9 339.4,104.2 343.0,105.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1101.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08171486338117,41.52390824862487]}},{"type":"Feature","properties":{"resourceCoords":[658.0,206.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08268550968371,41.523549674107876]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"138.4,461.1 296.7,461.5 360.8,450.6 349.2,363.8 760.7,257.1 740.0,238.0 888.0,64.4 887.9,63.2 927.5,85.2 1086.4,55.9 1093.6,118.6 1413.0,253.7 1411.7,362.0 1493.2,407.2 1570.8,569.3 1566.7,620.7 1551.3,813.2 1496.6,815.1 1328.2,1193.6 1213.8,1214.0 1144.6,1235.5 1093.7,1265.8 1129.2,1291.1 1311.9,1460.0 1399.0,1570.8 1435.8,1643.8 1483.5,1807.4 585.9,1866.9 349.9,1778.0 70.4,1556.0 51.0,1586.0 60.7,1362.5 45.9,460.9 138.4,461.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1116.0,1254.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07753160105104,41.524032436247374]}},{"type":"Feature","properties":{"resourceCoords":[428.0,468.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.079945566856,41.5246832599874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p15","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"180.0,728.8 177.4,722.8 37.2,618.9 160.3,621.3 335.6,396.8 344.9,198.3 573.0,331.0 574.2,334.9 824.5,347.8 812.3,448.4 1150.2,259.5 1157.9,231.2 1173.5,173.0 1569.3,141.9 1558.3,175.8 1407.1,642.8 1329.2,877.1 1351.5,885.0 1522.5,1809.0 1197.7,1852.0 671.2,1820.5 664.7,1824.5 549.5,1705.8 484.7,1659.8 359.8,1604.5 126.2,1542.5 84.3,1536.9 114.2,1487.8 163.8,1437.9 252.8,1368.5 225.3,967.3 271.4,940.8 197.2,768.7 180.0,728.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1218.0,8.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0747719,41.5269312]}},{"type":"Feature","properties":{"resourceCoords":[1286.0,998.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0745514,41.5250584]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p16","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1020.5,1425.3 1017.4,1423.0 493.5,1324.2 468.6,1385.7 419.6,1507.0 352.3,1690.2 346.9,1705.0 211.6,812.1 252.6,680.5 395.0,223.0 738.8,304.6 724.1,383.6 760.3,394.3 848.3,262.5 1158.5,28.9 1181.5,103.8 1209.9,161.9 1268.4,249.5 1223.8,285.0 1490.9,621.9 1360.1,794.0 1333.6,835.8 1238.7,1053.8 1535.8,1391.5 1345.0,1683.0 1020.5,1425.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[923.0,1348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0723684,41.5277617]}},{"type":"Feature","properties":{"resourceCoords":[395.0,223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0738267,41.5297755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"128.7,1573.1 104.7,1573.2 99.5,1323.1 85.0,826.0 83.5,773.5 78.5,599.3 77.8,577.2 72.3,385.0 72.7,271.2 72.8,256.0 73.0,190.6 588.6,89.0 592.3,90.1 1196.3,270.4 1206.2,304.3 1165.8,454.7 1097.4,681.0 1532.1,842.3 1446.2,1082.9 1223.7,1297.4 1163.9,1350.2 630.0,1769.2 565.5,1838.8 525.0,1846.0 363.6,1896.1 342.0,1761.9 335.3,1728.8 260.7,1800.9 128.7,1573.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[537.0,1818.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07361809961495,41.524598427979484]}},{"type":"Feature","properties":{"resourceCoords":[1234.0,293.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07075868172862,41.526889304566154]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1096.3,219.6 1059.2,261.2 1025.8,320.8 958.0,476.7 400.8,201.0 344.4,170.0 312.5,333.9 311.9,647.6 308.4,728.5 237.4,1413.5 242.7,1509.5 219.3,1544.2 142.1,1697.3 28.9,1618.4 1.0,1600.5 1.0,1705.5 678.4,1873.7 892.2,1866.3 1093.7,1784.2 1363.3,1848.1 1414.7,1791.5 1569.8,1127.3 1479.7,1027.4 1510.7,928.6 1398.1,858.6 1372.4,521.8 1495.8,280.6 1543.3,317.9 1341.5,49.0 1096.3,219.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[304.0,578.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07143289381484,41.525182878880834]}},{"type":"Feature","properties":{"resourceCoords":[939.0,485.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07055237194977,41.524200915037824]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1177.4,1811.8 1122.2,1813.8 1056.7,1830.8 898.9,1889.2 713.8,1302.2 697.4,1240.8 558.4,1330.3 645.6,1089.0 209.5,925.4 279.1,698.3 320.2,547.3 310.4,513.2 97.2,448.7 166.6,110.8 419.7,240.1 450.2,135.4 452.5,127.7 969.0,263.1 957.0,285.5 1025.9,342.8 1122.5,261.9 1473.2,450.8 1514.0,417.1 1487.6,1874.0 1177.4,1811.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[875.0,1868.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0705536654778,41.5242274128385]}},{"type":"Feature","properties":{"resourceCoords":[830.0,552.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06963354393655,41.52657988666167]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.61"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"85.0,1762.1 88.7,1638.0 175.5,1542.0 216.3,1271.0 170.3,849.6 357.7,192.2 523.1,32.7 1026.3,184.5 1072.2,359.4 1165.3,362.1 1269.4,485.8 1436.3,896.1 1468.2,884.0 1526.0,1178.6 1535.9,1179.0 1542.0,1817.0 688.3,1793.2 688.2,1779.5 192.1,1745.2 190.7,1757.0 85.0,1762.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[683.0,1140.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0888012,41.5379626]}},{"type":"Feature","properties":{"resourceCoords":[1542.0,1817.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0871387,41.5364481]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p20","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"549.5,1756.0 681.6,1711.6 818.3,1755.8 915.8,1839.5 962.0,1886.7 1199.2,1912.0 1329.3,1912.0 1332.7,1903.8 1365.2,1912.0 1504.7,1912.0 1489.7,1889.9 1559.8,1824.3 1506.3,1745.9 1514.3,1537.2 1582.5,1287.5 1539.4,70.8 1034.9,43.6 485.7,197.2 291.0,170.9 95.2,39.3 37.1,96.6 139.7,415.5 44.3,975.4 137.0,1318.7 65.7,1473.4 1.0,1517.5 1.0,1617.4 420.4,1810.0 549.5,1756.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[257.0,1346.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07018355413227,41.53252490620582]}},{"type":"Feature","properties":{"resourceCoords":[969.0,519.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06758176777858,41.53304620065546]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p21","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.6,1160.6 94.0,1218.0 528.0,1216.0 583.1,1427.2 599.8,1474.3 713.8,1685.6 1456.5,1644.0 1429.7,1536.2 1414.9,1479.2 1292.1,997.0 1298.3,908.8 1345.2,743.9 1468.9,764.0 1416.5,264.1 1232.3,258.3 1234.6,217.8 1493.0,199.4 1237.1,172.2 1240.2,115.7 1165.0,161.3 1052.6,121.2 1026.6,39.0 838.2,40.2 793.8,1.0 582.4,1.0 581.3,8.9 453.6,41.4 214.7,75.6 157.6,40.9 108.4,559.9 99.0,699.5 93.6,1160.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[521.0,646.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0700456,41.5298572]}},{"type":"Feature","properties":{"resourceCoords":[94.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0717805,41.52975]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p22","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"387.2,1357.2 1.0,1602.4 1.0,1743.8 80.5,1643.1 486.3,1809.8 1203.8,1800.3 1266.5,1844.6 1475.5,1726.2 1496.5,1733.0 1594.7,1289.8 1551.9,1249.7 1570.3,314.4 1536.0,114.6 1457.9,1.0 1399.5,1.0 1386.3,262.0 1353.1,1.0 1311.7,1.0 1316.1,187.8 810.3,269.5 823.8,142.4 653.2,104.0 563.2,102.7 79.3,255.0 30.1,270.7 208.7,796.3 182.3,798.8 172.1,891.3 297.6,928.8 334.6,1341.1 387.2,1357.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1231.0,1165.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06661360677036,41.527625282614]}},{"type":"Feature","properties":{"resourceCoords":[1162.0,1617.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06607339237617,41.526913261575984]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"209.8,583.1 163.0,745.6 270.5,803.6 220.2,972.5 283.4,1112.7 194.7,1277.1 270.6,1318.0 294.2,1592.0 230.2,1690.1 662.9,1709.5 659.9,1730.3 805.5,1907.2 832.7,1849.9 922.2,1865.5 1076.6,1761.0 1374.4,1799.2 1382.1,1860.5 1511.1,1848.5 1551.5,1788.7 1542.9,412.4 1467.7,143.2 1323.7,72.3 690.4,98.6 667.9,321.8 629.0,336.4 620.9,232.7 52.5,385.7 7.2,326.6 1.0,329.9 1.0,462.4 209.8,583.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[690.0,68.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06161801580413,41.52853963601769]}},{"type":"Feature","properties":{"resourceCoords":[670.0,602.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0628204211893,41.52809667013978]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p24","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"309.6,93.8 743.6,170.6 873.9,105.1 1173.2,17.2 1178.0,32.6 1477.0,46.3 1539.6,33.6 1478.7,59.0 1551.8,187.0 1584.2,532.5 1585.9,1393.4 1505.7,1884.8 1528.9,1909.5 923.2,1709.8 823.0,1912.0 788.4,1912.0 781.2,1912.0 810.3,1811.5 220.9,1754.2 199.2,1682.5 191.1,1683.5 144.5,1807.3 151.4,1539.8 36.8,1198.8 33.1,291.7 75.0,130.7 182.4,133.0 292.5,37.2 309.6,93.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[127.0,1414.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06269819706964,41.529903770766445]}},{"type":"Feature","properties":{"resourceCoords":[1344.0,1858.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06113622231689,41.527787720483104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0025/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p25","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0025/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,379.4 1612.0,311.6 1291.9,83.4 1291.6,142.4 835.4,146.6 835.3,80.7 460.1,78.6 460.1,141.8 433.4,141.7 1.0,320.5 1.0,355.4 40.7,351.4 44.3,1523.7 1.0,1543.2 1.0,1602.5 388.3,1798.4 530.1,1773.6 838.1,1775.9 838.2,1791.8 1116.9,1890.0 1179.7,1895.9 1451.7,1868.2 1564.8,1754.7 1512.7,1308.5 1584.4,720.6 1519.9,420.9 1612.0,379.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0025/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1287.0,866.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0564678,41.5318083]}},{"type":"Feature","properties":{"resourceCoords":[836.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0571319,41.5327806]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p26","metadata":[{"label":"streets","value":"11"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"83.7,99.8 521.1,32.5 717.2,88.3 967.9,343.2 1182.5,292.3 1260.4,127.5 1553.8,131.0 1596.2,925.4 1610.6,921.9 1542.0,1473.4 1550.0,1474.9 1486.0,1834.8 141.3,1578.8 214.1,1211.8 152.2,1199.9 157.2,1173.8 63.4,715.6 29.6,709.1 83.7,99.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[861.0,1336.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0568706,41.5349462]}},{"type":"Feature","properties":{"resourceCoords":[258.0,1601.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0565705,41.5337179]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0027/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p27","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0027/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"876.4,1761.1 559.5,1533.3 558.9,1591.9 106.0,1594.3 106.1,1528.8 108.9,165.8 448.3,150.6 565.4,148.9 563.0,120.8 737.3,110.6 738.8,113.2 1466.2,161.4 1554.5,1456.3 1517.5,1860.7 1098.2,1876.9 991.6,1777.0 876.1,1828.5 876.4,1761.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0027/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[564.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0545699,41.534938]}},{"type":"Feature","properties":{"resourceCoords":[106.0,1592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0567592,41.5334027]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"267.9,256.1 327.1,42.5 736.4,137.8 1074.3,23.9 1500.7,88.2 1529.2,75.2 1485.9,295.1 1554.6,298.8 1553.2,1159.8 1557.4,1265.5 1579.1,1638.2 1569.2,1639.7 1588.2,1738.0 1530.7,1842.8 1313.4,1793.0 728.8,1878.2 230.7,1862.0 171.5,1896.2 160.3,1721.7 132.2,1724.2 129.8,1607.0 112.7,1267.1 107.1,902.5 99.0,902.6 61.5,349.5 267.9,256.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[842.0,1268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.05451089067424,41.53714254817545]}},{"type":"Feature","properties":{"resourceCoords":[1536.0,906.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.05462233391367,41.53862775882356]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0029/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p29","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0029/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"864.5,23.7 1106.2,142.1 1386.1,130.5 1421.7,98.2 1572.8,450.5 1547.5,1872.7 993.1,1834.7 609.7,1875.3 101.7,1816.9 66.0,1863.3 62.0,1762.3 72.0,1762.3 107.0,1386.7 118.8,1280.5 251.1,420.7 183.0,406.5 259.7,193.6 864.5,23.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0029/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[522.0,1068.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0542574,41.5392969]}},{"type":"Feature","properties":{"resourceCoords":[160.0,1013.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0546364,41.5386693]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"939.3,1870.8 621.9,1881.9 620.7,1858.4 74.5,1872.6 30.4,1796.7 74.2,1743.1 28.0,1698.1 47.4,277.3 73.1,166.0 604.1,25.0 851.4,171.1 1465.5,68.5 1577.2,223.7 1573.0,352.1 1578.5,542.5 1590.0,544.3 1537.2,1037.0 1523.5,1036.7 1467.6,1885.9 939.3,1870.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[596.0,1139.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08927485357319,41.53514256113741]}},{"type":"Feature","properties":{"resourceCoords":[1502.0,1871.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08715932195531,41.53651377425796]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0030/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p30","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0030/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0030","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"789.5,1864.0 787.5,1840.4 498.2,1849.7 421.2,1648.6 360.2,1698.2 329.4,1623.6 134.5,1661.2 121.3,1397.5 38.8,1254.8 83.5,537.0 35.4,62.3 378.1,33.9 708.3,93.9 703.8,114.3 1612.0,146.9 1612.0,268.5 1612.0,276.2 1567.4,290.1 1520.2,679.7 1368.2,879.9 1575.8,1351.0 1557.9,1662.6 1369.5,1721.2 1411.4,1839.6 789.5,1864.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0030/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[702.0,642.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06787046226118,41.5235667942091]}},{"type":"Feature","properties":{"resourceCoords":[702.0,1128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06672585865935,41.52330046365262]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"987.0,95.0 1279.8,150.7 1464.9,109.2 1533.2,283.9 1482.8,412.0 1498.0,708.1 1577.4,1010.0 1485.5,1843.5 1260.7,1823.1 1092.2,1610.3 660.8,1833.3 225.2,1887.7 109.0,1848.0 172.9,1714.5 175.5,1365.0 53.1,1072.2 69.5,856.7 372.8,761.2 378.1,596.6 312.4,428.7 163.2,324.5 63.4,111.1 347.4,81.5 351.1,104.6 961.5,36.7 987.0,95.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[844.0,640.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06323373462642,41.52354514059811]}},{"type":"Feature","properties":{"resourceCoords":[1210.0,2259.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.05913301631132,41.523078871562255]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p32","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1228.7,1854.9 1281.3,1912.0 1505.4,1912.0 1612.0,1612.5 1612.0,1609.7 1548.1,1587.3 1520.9,909.4 1520.5,909.4 1419.7,196.7 1412.7,197.2 1317.0,1.0 1316.2,1.0 1306.0,27.8 82.7,45.5 28.8,904.5 107.8,1217.8 56.0,1494.3 47.5,1503.2 235.8,1589.9 289.0,1543.3 835.5,1608.7 1228.7,1854.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[291.0,353.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09039665122079,41.52436642022758]}},{"type":"Feature","properties":{"resourceCoords":[647.0,1269.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08950799585544,41.52267145286754]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0033/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p33","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0033/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0033","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"34.5,619.2 57.8,980.9 136.5,1190.5 127.2,1347.8 56.4,1350.5 124.2,1403.6 138.2,1777.7 193.9,1780.6 217.2,1860.8 1528.8,1877.5 1583.8,1723.5 1486.8,1428.5 1578.8,1182.1 1525.7,166.6 1602.8,83.5 1602.5,54.4 1566.3,38.2 1519.0,1.0 1071.5,1.0 635.4,120.2 224.3,471.4 222.6,540.9 34.5,619.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0033/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[635.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08905206414478,41.522035094018364]}},{"type":"Feature","properties":{"resourceCoords":[236.0,65.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08962117560384,41.52266618594036]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0034/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p34","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0034/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1584.8,161.7 1581.7,245.7 1579.0,295.4 1547.3,666.0 1530.5,807.8 1500.2,864.7 1495.5,1042.8 1431.3,1777.5 1430.3,1795.2 713.3,1799.7 712.9,1806.6 479.6,1883.8 55.4,1838.1 49.8,768.4 149.2,359.9 185.5,440.5 1135.1,75.3 1210.1,198.3 1337.2,121.5 1539.9,5.3 1574.1,22.6 1584.8,161.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0034/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[332.0,1432.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08682981924662,41.525459548012364]}},{"type":"Feature","properties":{"resourceCoords":[1539.0,20.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08294327002025,41.52359567402097]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.58"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"762.2,1793.3 735.4,1854.3 77.5,1829.5 77.5,1812.7 99.5,1094.5 94.3,921.0 120.6,864.0 129.2,725.2 139.6,362.9 139.6,318.1 400.6,267.9 460.0,203.4 522.2,169.2 1528.4,60.0 1552.2,64.2 1593.5,881.7 1526.5,1705.7 1439.3,1819.1 1431.8,1912.0 1028.4,1912.0 762.2,1793.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1121.0,933.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08485387792155,41.521495861780856]}},{"type":"Feature","properties":{"resourceCoords":[142.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08288271558285,41.52349122469939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0037","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1056.1,50.7 1513.2,77.0 1591.1,418.1 1603.9,1401.3 1516.0,1769.4 1165.7,1783.3 1087.1,1872.8 633.7,1826.5 49.6,1870.4 22.5,1222.0 66.0,954.8 165.7,806.9 124.2,607.3 40.7,524.6 48.7,53.8 429.1,45.3 601.2,154.6 895.3,135.5 1056.1,50.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[576.0,1566.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08425583046875,41.509866358187494]}},{"type":"Feature","properties":{"resourceCoords":[206.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08286664038876,41.51258593915254]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0039__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p39 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1846.4"},{"label":"split_canvas_w","value":"3905.6"},{"label":"split_canvas_h","value":"2079.2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0039__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0039","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"71.2,960.6 927.8,960.7 954.3,534.4 945.6,489.2 495.6,473.4 397.8,589.9 82.4,590.6 24.5,797.0 71.2,960.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0039__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[509.2,512.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07453105059415,41.51237456988177]}},{"type":"Feature","properties":{"resourceCoords":[734.3,487.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07397983258736,41.51234152756291]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p4","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"94.0,1516.0 100.9,1002.8 109.2,385.3 99.6,384.6 50.2,98.3 206.5,43.0 519.0,123.1 819.5,27.4 1298.0,29.7 1237.8,154.8 1238.9,154.9 1294.5,178.2 1367.4,249.4 1493.3,856.4 1612.0,1130.1 1612.0,1235.6 1583.8,1244.1 1546.6,1852.6 1189.3,1885.2 919.5,1833.9 552.0,1890.7 321.0,1809.6 109.4,1824.1 94.0,1516.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1210.0,157.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0840455,41.537592]}},{"type":"Feature","properties":{"resourceCoords":[94.0,1516.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0873986,41.5355178]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.63"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1340.5,1839.8 1537.9,1823.3 1524.8,1582.0 1443.2,1410.6 1506.6,861.1 1447.3,682.3 1492.3,481.3 1553.4,463.5 1576.1,232.7 1527.2,92.6 1390.1,120.7 1003.0,38.2 985.2,1.0 843.2,1.0 843.2,1.1 846.4,62.7 813.3,161.4 310.4,546.9 111.0,777.7 13.8,824.5 44.0,857.5 56.5,1433.8 8.9,1488.3 296.9,1734.8 298.8,1729.2 701.7,1787.9 697.6,1843.4 1346.3,1810.4 1340.5,1839.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[682.0,1830.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08066334260442,41.53536805353969]}},{"type":"Feature","properties":{"resourceCoords":[844.0,9.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08395795319892,41.537578139241404]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1541.1,1830.6 8.9,1651.7 43.9,1640.8 50.5,812.9 140.4,735.7 136.8,553.7 52.1,417.2 58.2,115.0 238.2,69.8 255.2,40.6 580.7,225.2 581.5,219.4 983.0,200.3 989.6,254.9 1612.0,100.8 1612.0,108.1 1612.0,130.3 1599.9,133.7 1443.8,349.5 1566.1,1046.3 1544.8,1197.9 1532.8,1323.8 1541.2,1329.6 1541.1,1698.3 1541.1,1830.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[954.0,891.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0796317995521,41.53446808771109]}},{"type":"Feature","properties":{"resourceCoords":[509.0,788.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08060917405065,41.53405946306248]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1359.7,1431.2 1459.3,1465.3 1507.3,1777.5 1242.8,1682.0 807.8,1875.0 689.8,1779.1 662.0,1831.9 300.5,1780.1 257.1,1828.6 72.5,1731.2 27.5,1589.3 193.7,81.0 1537.4,80.9 1612.0,80.9 1612.0,179.8 1401.4,1367.2 1363.0,1363.2 1358.7,1430.7 1359.7,1431.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[801.0,1314.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07829803598887,41.53153728641407]}},{"type":"Feature","properties":{"resourceCoords":[1623.0,78.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07463789748486,41.531932907663276]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p8","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.1,468.5 71.7,1805.8 847.3,1804.2 847.3,1806.8 1061.9,1806.5 1064.0,1800.4 1423.0,1894.8 1544.4,1739.6 1593.7,1512.8 1507.5,650.7 1579.2,269.7 1427.8,104.4 1384.0,142.4 1333.1,145.1 1334.2,165.4 749.3,191.1 465.7,32.7 154.8,33.8 106.9,1.0 73.3,1.0 74.5,338.9 75.1,468.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[413.0,1308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0749842,41.5331694]}},{"type":"Feature","properties":{"resourceCoords":[73.0,1308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0756168,41.5327432]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Norwich, Connecticut | 1909 | sanborn01161_005 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T22:31:26Z","modified":"2026-10-18T22:31:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1564.4,1855.6 1612.0,1742.0 1612.0,1641.8 1612.0,1604.2 1532.5,1496.8 1445.2,1395.0 1497.2,954.5 1587.3,925.3 1514.8,869.0 1575.2,597.0 1566.1,208.9 1572.7,199.0 1217.8,133.0 1216.1,139.1 1008.1,154.6 1007.9,152.1 255.8,208.8 262.1,297.8 316.9,1072.0 318.2,1175.1 310.4,1225.1 306.0,1245.6 292.3,1290.0 250.2,1364.1 165.6,1482.3 54.3,1619.7 1.0,1673.1 1.0,1675.3 22.7,1702.1 163.5,1645.8 534.6,1629.6 512.1,1701.1 503.1,1762.2 501.8,1863.0 938.0,1840.1 1070.6,1840.6 1564.4,1855.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011611909:01161_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[304.0,307.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07453268073098,41.5319557237251]}},{"type":"Feature","properties":{"resourceCoords":[338.0,1252.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07297296391832,41.530556938517535]}}]}}]}