{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01152_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"New London, Connecticut | 1921 | mapsnap generated fit (2026-10-24)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-24"},{"label":"run","value":"corpus-v2.2"},{"label":"pages","value":"98"},{"label":"placed","value":"52"},{"label":"unplaced","value":"46"},{"label":"fit sources","value":"georef-snap 36, georef 21, georef-street 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"25 sheet(s) cut into 53 panels"},{"label":"unplaced pages","value":"p0a__2 (tier 1, 41.34550,-72.09973 +/-100m); p0b (tier 1, 41.34729,-72.10158 +/-128m); p11 (tier 1, 41.36043,-72.10013 +/-258m); p12__1 (tier 1, 41.35623,-72.09632 +/-199m); p12__2 (tier 1, 41.35752,-72.09577 +/-226m); p13 (tier 2, 41.36305,-72.10424 +/-232m); p1__2 (tier 1, 41.35029,-72.10089 +/-100m); p1s__2 (tier 1, 41.35037,-72.10079 +/-100m); p25__2 (tier 1, 41.34938,-72.10880 +/-100m); p27__2 (tier 1, 41.34825,-72.11244 +/-131m); p29__2 (tier 1, 41.34845,-72.10297 +/-123m); p30__1 (tier 1, 41.34455,-72.09629 +/-117m); p30__2 (tier 1, 41.34898,-72.10208 +/-261m); p33__2 (tier 1, 41.35353,-72.09631 +/-100m); p34__2 (tier 1, 41.34429,-72.10106 +/-100m); p39__1 (tier 2, 41.36199,-72.09553 +/-100m); p39__2 (tier 1, 41.36142,-72.09625 +/-113m); p40__1 (tier 3, 41.36121,-72.09157 +/-524m); p40__2 (tier 3, 41.36121,-72.09157 +/-524m); p43__2 (tier 1, 41.36482,-72.09869 +/-100m); p47__1 (tier 4, 41.35252,-72.09991 +/-2799m); p47__2 (tier 4, 41.35252,-72.09991 +/-2799m); p48 (tier 2, 41.36138,-72.10232 +/-100m); p49 (tier 4, 41.35252,-72.09991 +/-2799m); p50__1 (tier 1, 41.36578,-72.09467 +/-124m); p50__2 (tier 2, 41.35628,-72.09619 +/-1068m); p50__3 (tier 1, 41.36683,-72.09557 +/-151m); p54__1 (tier 1, 41.36142,-72.07983 +/-182m); p6 (tier 1, 41.35546,-72.09372 +/-257m); p60__2 (tier 1, 41.34363,-72.07827 +/-116m); p61__1 (tier 2, 41.34849,-72.08036 +/-242m); p61__2 (tier 1, 41.34697,-72.07456 +/-100m); p61__3 (tier 1, 41.35031,-72.07849 +/-105m); p62 (tier 4, 41.35252,-72.09991 +/-2799m); p64__1 (tier 4, 41.35252,-72.09991 +/-2799m); p64__2 (tier 4, 41.35252,-72.09991 +/-2799m); p65__1 (tier 4, 41.35252,-72.09991 +/-2799m); p65__2 (tier 4, 41.35252,-72.09991 +/-2799m); p65__3 (tier 4, 41.35252,-72.09991 +/-2799m); p6s (tier 1, 41.35543,-72.09367 +/-254m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1124.4,1859.0 859.5,1861.0 497.6,1851.3 451.0,1850.5 361.7,1850.3 238.6,1850.8 173.5,1853.5 110.0,1857.0 64.0,1846.7 55.2,1843.5 38.4,1836.3 61.9,1753.8 303.4,1081.8 464.9,658.9 485.2,578.6 492.2,495.2 479.6,194.7 481.8,80.8 779.7,22.8 1250.7,54.5 1517.7,857.0 1561.1,1734.2 1520.3,1798.3 1124.4,1859.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[659.0,1147.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09849980885518,41.357280248747244]}},{"type":"Feature","properties":{"resourceCoords":[489.0,536.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09925572376093,41.358290979172665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p14","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.02"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1058.0,329.3 915.6,186.7 1528.2,394.6 1503.6,409.0 1612.0,703.4 1598.9,732.3 1579.2,1057.1 1351.8,1168.7 1463.9,1784.2 1023.5,1852.8 1004.6,1912.0 739.8,1912.0 274.8,1845.8 233.0,1836.0 230.0,1796.3 155.6,1778.3 219.0,1410.8 182.9,1097.7 68.8,830.0 62.8,102.5 243.8,75.7 1058.0,329.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[233.0,1836.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.102938,41.361437]}},{"type":"Feature","properties":{"resourceCoords":[76.0,471.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1030933,41.3637305]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p15","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1380.1,1849.0 1185.5,1806.9 998.6,1766.3 714.8,1700.3 430.9,1618.5 142.8,1535.5 182.9,1087.6 215.9,1091.5 168.9,602.5 91.7,601.0 435.0,96.3 437.4,96.5 599.4,101.2 606.6,71.3 1090.9,48.0 1156.2,82.0 1182.3,222.0 1166.8,222.0 1162.1,595.5 1200.6,599.7 1538.6,668.1 1540.0,1883.7 1380.1,1849.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1043.0,1776.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1060488,41.3592772]}},{"type":"Feature","properties":{"resourceCoords":[1539.0,1018.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1043565,41.3603198]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p16","metadata":[{"label":"streets","value":"13"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"430.5,1634.3 800.4,1715.1 1533.2,1861.7 1543.8,1784.2 1546.5,1114.3 1517.6,1115.6 1439.4,672.4 1353.0,681.2 1347.0,616.7 1504.8,542.4 1572.1,549.6 1535.2,452.5 1372.5,495.3 1352.2,134.3 1490.1,60.9 1494.4,1.0 1186.2,1.0 842.5,34.0 803.7,34.3 792.9,1.0 721.2,1.0 635.2,43.1 92.0,43.4 84.2,1.0 68.8,1.0 63.0,367.0 100.8,371.3 432.9,439.6 430.5,1634.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1545.0,1494.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1022612,41.3584584]}},{"type":"Feature","properties":{"resourceCoords":[63.0,367.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1049199,41.3612559]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0017/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p17","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0017/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"725.2,1290.9 262.6,756.4 229.8,694.0 339.3,671.4 497.9,419.0 258.5,62.8 745.4,100.6 1037.4,123.2 1326.2,130.6 1515.8,132.6 1576.9,133.2 1553.3,653.2 1538.0,649.5 1518.8,644.8 1538.2,1416.5 1536.5,1417.8 1068.3,1790.5 725.2,1290.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0017/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[714.0,1283.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1088128796748,41.35801887028726]}},{"type":"Feature","properties":{"resourceCoords":[1423.0,1506.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10756610925556,41.357032197434705]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0018/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p18","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0018/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1315.5,1831.9 1278.7,1810.5 848.8,1610.8 734.7,1551.3 654.9,1475.7 187.5,1291.2 41.8,1408.9 16.7,629.2 36.2,633.8 51.6,637.5 71.8,111.9 209.6,112.3 373.4,112.8 759.4,113.6 1521.1,101.7 1532.9,101.5 1505.4,205.2 1475.3,978.0 1577.2,990.3 1350.3,1722.0 1401.5,1734.2 1315.5,1831.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0018/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[58.0,1402.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10717244485562,41.35706948344631]}},{"type":"Feature","properties":{"resourceCoords":[1484.0,984.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1036816098053,41.35645873413799]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p19","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"131.0,1636.6 49.5,1554.5 57.9,1050.8 117.0,965.9 71.7,828.4 130.8,776.2 146.2,128.6 322.8,119.4 360.6,44.4 1226.4,350.4 1324.2,346.4 1426.7,749.6 1437.5,820.3 1466.0,1218.0 1508.3,1802.4 1510.0,1822.5 256.0,1838.4 256.0,1822.6 149.8,1892.5 131.0,1636.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1466.0,1218.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1118907,41.3558653]}},{"type":"Feature","properties":{"resourceCoords":[256.0,1823.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1138756,41.3538642]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p1 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.87"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1465.1,1333.0 1405.6,1345.2 1388.5,1291.6 1322.6,1181.7 1510.6,1126.2 1528.0,185.6 1573.3,119.5 1512.2,90.9 1416.9,64.1 1291.8,42.0 1240.8,97.7 1207.9,127.4 1108.6,225.2 1014.7,325.4 925.8,430.8 747.1,654.8 649.1,761.8 363.4,1040.3 184.2,1220.0 1.0,1402.8 1.0,1627.0 119.6,1603.1 638.1,1499.0 873.0,1871.3 1554.7,1752.0 1583.0,1758.5 1465.1,1333.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1570.0,93.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10089070686934,41.35259462575309]}},{"type":"Feature","properties":{"resourceCoords":[1468.0,1373.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10086765705316,41.35020894092431]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"317.1,1333.8 257.4,1344.4 241.8,1290.4 179.1,1178.8 368.3,1128.8 412.2,190.5 459.2,125.8 563.2,178.4 646.7,239.8 741.2,326.8 777.0,379.2 859.5,351.9 935.0,306.4 1002.5,250.2 1034.7,299.3 1242.1,880.2 1241.1,945.6 1347.0,982.6 1373.7,1102.4 1515.7,1691.7 1443.2,1649.4 1135.7,1847.5 749.0,1846.6 422.9,1761.9 317.1,1333.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[883.0,936.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09960296889643,41.351138757743406]}},{"type":"Feature","properties":{"resourceCoords":[387.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10107250487391,41.35264673404195]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0020/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p20","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.79"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0020/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"245.6,34.0 245.1,49.7 1484.9,66.9 1494.0,214.0 1506.3,415.9 1460.0,1029.0 1502.5,1818.0 1500.6,1882.5 1097.6,1883.0 1020.3,1880.2 893.0,1811.2 473.7,1873.1 327.8,1778.1 137.2,1765.9 143.9,1219.3 218.8,988.6 132.0,646.3 156.5,478.8 138.8,100.3 245.6,34.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0020/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[227.0,1029.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.112745,41.3522141]}},{"type":"Feature","properties":{"resourceCoords":[1460.0,1029.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1100468,41.353304]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0021/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p21","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0021/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1152.0,1695.2 645.4,1694.7 117.2,1697.1 159.5,1065.5 144.9,857.8 132.9,685.9 100.5,90.4 597.8,132.2 597.7,188.4 1505.8,324.6 1359.5,699.6 1315.5,873.6 1255.8,1224.1 1181.2,1695.3 1161.5,1812.5 1152.0,1695.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0021/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[597.0,697.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1101478,41.3553124]}},{"type":"Feature","properties":{"resourceCoords":[148.0,1219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1105191,41.3540964]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0022/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p22","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0022/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"199.8,1215.3 260.9,867.7 305.6,695.2 496.5,213.3 1065.0,405.0 1243.1,465.1 1337.4,954.5 1316.5,1061.6 1327.5,1188.7 1389.1,1654.9 1390.8,1697.1 1377.0,1696.0 460.1,1684.8 123.2,1682.7 199.8,1215.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0022/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1065.0,405.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1072199,41.3570724]}},{"type":"Feature","properties":{"resourceCoords":[718.0,288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1080982,41.3569625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0023/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p23","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0023/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"180.6,1303.0 188.6,396.2 189.7,382.5 209.1,256.3 353.9,108.5 1165.8,173.2 1248.4,191.0 1268.0,192.3 1252.0,652.5 1281.0,640.8 1553.3,1839.3 1494.9,1863.2 1110.2,1794.9 179.6,1636.2 180.6,1303.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0023/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1266.0,184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10337156476827,41.35368812043544]}},{"type":"Feature","properties":{"resourceCoords":[189.0,1642.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10777851833299,41.35418536701121]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0024/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p24","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0024/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0024","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1501.0,1783.7 903.7,1790.2 900.0,1776.5 594.5,1748.9 586.4,1714.7 254.8,1796.1 147.6,1817.1 156.0,572.0 124.7,576.9 246.8,126.6 247.4,126.7 505.6,108.5 506.0,114.8 1108.8,66.9 1114.1,66.5 1181.8,61.1 1202.7,201.7 1228.8,339.3 1262.2,475.9 1339.2,757.8 1368.5,902.9 1426.2,1305.8 1466.5,1561.5 1501.0,1783.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0024/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[685.0,505.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1033805,41.3526231]}},{"type":"Feature","properties":{"resourceCoords":[156.0,572.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1043468,41.3532691]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0025__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p25 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0025__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0025","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"88.3,845.8 46.5,1349.0 22.9,1378.2 83.9,1836.1 100.8,1834.9 425.8,1823.2 423.7,1912.0 485.4,1905.3 647.7,1843.8 869.2,1752.7 1365.2,1560.2 1328.7,1458.3 1309.3,1398.0 1408.2,1018.5 1612.0,213.5 1612.0,199.1 1612.0,97.7 1114.6,56.7 595.6,16.9 580.8,818.3 574.0,883.4 166.2,854.4 88.3,845.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0025__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1306.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10668062600864,41.351763343419165]}},{"type":"Feature","properties":{"resourceCoords":[403.0,1827.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10806671517078,41.350304628279524]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0026/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p26","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0026/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0026","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.6,1214.1 36.6,1216.2 37.8,1174.8 43.9,969.8 88.2,277.8 147.0,279.3 472.6,299.5 460.5,398.2 524.1,387.4 692.1,341.9 922.1,272.5 1436.1,129.0 1534.5,453.7 1501.0,463.5 1489.7,768.1 1476.3,772.5 1514.4,1364.7 1475.0,1373.0 1351.5,1562.7 1289.0,1537.8 1219.2,1510.2 842.8,1362.0 579.5,1264.7 442.4,1230.8 264.8,1219.2 185.6,1214.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0026/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[799.0,1352.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10581269361113,41.349181985230544]}},{"type":"Feature","properties":{"resourceCoords":[1314.0,1410.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10473477113989,41.349680086239424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0027__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p27 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0027__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0027","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"820.8,882.0 1204.6,881.7 1501.0,474.3 1405.5,471.5 1415.9,108.3 1245.7,106.8 549.9,76.3 550.1,34.3 85.6,59.8 155.6,125.5 86.1,230.4 28.3,898.4 121.2,1476.2 37.0,1773.3 85.7,1856.0 37.0,1847.2 94.6,1881.2 478.8,1873.8 515.2,1912.0 578.3,1912.0 579.4,1912.0 729.0,1430.7 768.7,1192.9 806.9,919.7 820.8,882.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0027__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[547.0,20.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.108691368336,41.349996071082074]}},{"type":"Feature","properties":{"resourceCoords":[1531.0,439.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10807021343179,41.3481000086911]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0028/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p28","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0028/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0028","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1605.8,1395.0 1484.2,1010.8 1452.8,872.2 1435.3,691.6 1415.5,106.6 1012.6,106.2 733.0,111.6 593.6,130.1 424.7,184.0 421.2,185.1 393.2,252.3 339.9,367.2 306.2,460.6 252.4,666.8 188.0,874.2 132.2,1035.2 72.3,1272.1 43.1,1360.3 1.0,1436.8 1.0,1500.1 6.8,1506.3 136.2,1644.3 166.7,1661.8 427.4,1732.8 470.9,1737.2 642.3,1717.2 752.3,1761.0 750.1,1816.8 1044.3,1683.7 1333.6,1540.8 1605.8,1395.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0028/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1108.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.104672380782,41.347212451862056]}},{"type":"Feature","properties":{"resourceCoords":[1004.0,108.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10573222013144,41.34920915451985]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p29 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4536.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"329.9,1314.1 363.2,1422.3 446.2,1731.2 466.9,1807.7 912.1,1769.5 861.1,1761.0 865.1,1348.4 775.4,1091.0 1048.5,1075.2 1086.7,450.9 1101.0,451.4 947.8,34.5 414.1,27.8 224.0,25.5 149.2,24.8 164.7,609.7 180.7,790.3 211.1,929.1 329.9,1314.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[241.1,1034.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10382531186116,41.34770097388929]}},{"type":"Feature","properties":{"resourceCoords":[447.1,1859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10274885071199,41.34635975268145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p29 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3120.4"},{"label":"split_canvas_y","value":"4363.2"},{"label":"split_canvas_w","value":"3331.6"},{"label":"split_canvas_h","value":"3288.8"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1834.2 1612.0,1827.3 1592.1,1827.4 1548.8,1143.0 1323.4,1105.6 879.8,1144.5 893.0,1192.9 1043.8,1759.8 1057.3,1822.2 1612.0,1834.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0029__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[922.1,1190.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10260651612315,41.34640172407884]}},{"type":"Feature","properties":{"resourceCoords":[1023.1,1828.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10191149075544,41.345328779641584]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p3","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1589.4,1802.9 1505.0,1493.8 1523.5,1492.7 1424.6,1254.2 1400.5,1253.3 1409.0,798.0 1432.1,759.4 1434.3,757.5 1409.9,747.2 1414.2,514.9 1446.3,453.9 1588.0,349.5 1612.0,331.8 1607.0,296.0 1189.0,29.4 1146.2,48.4 763.5,161.8 680.4,179.6 389.6,206.4 388.4,265.2 230.2,862.7 192.2,916.2 258.7,1006.8 212.8,1120.9 1.0,1674.8 1.0,1699.0 68.4,1841.5 1136.6,1876.1 1465.2,1863.8 1589.4,1802.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1409.0,798.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0966407,41.3528471]}},{"type":"Feature","properties":{"resourceCoords":[698.0,177.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0989761,41.3528494]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0031/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p31","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0031/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0031","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"151.3,1801.4 1409.9,1815.7 1428.4,1220.6 1432.0,1057.3 1413.5,447.5 1398.1,367.0 1286.7,52.5 1268.5,1.0 1148.2,1.0 998.7,81.8 956.8,93.8 689.0,124.3 654.3,119.4 483.6,39.3 443.9,20.8 407.3,177.5 385.2,242.8 273.0,495.1 250.7,560.5 226.8,666.0 196.2,849.3 166.4,1102.6 151.1,1357.9 151.3,1801.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0031/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1436.0,1078.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1049895308227,41.3441510240909]}},{"type":"Feature","properties":{"resourceCoords":[1436.0,1424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10506535033088,41.34351478363038]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0032/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p32","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0032/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0032","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1560.8,1360.3 1571.6,1529.4 1556.1,1726.4 352.7,1763.2 277.9,1752.0 49.1,1670.2 104.4,1514.3 280.1,922.1 290.9,839.8 283.5,502.0 571.8,349.9 854.6,188.3 1120.1,24.8 1161.2,131.4 1266.0,437.0 1474.8,1047.3 1517.0,1186.6 1560.8,1360.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0032/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[243.0,1048.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1049246,41.3450751]}},{"type":"Feature","properties":{"resourceCoords":[1266.0,437.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1028428,41.3465843]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0033__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p33 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0033__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0033","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1542.0,1814.3 1506.8,1496.6 1481.0,1501.9 1438.3,1289.5 1431.0,990.7 1506.1,555.5 845.4,554.6 771.4,541.1 546.6,452.6 323.4,1008.7 240.8,1214.5 209.4,1292.5 919.3,1734.8 972.6,1755.0 1060.2,1788.3 1124.8,1801.9 1320.8,1807.8 1542.0,1814.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0033__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1200.0,1549.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10280526200884,41.34225721349844]}},{"type":"Feature","properties":{"resourceCoords":[600.0,335.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10498770773404,41.34412364199994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0034__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p34 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0034__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0034","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1528.2,1439.2 1494.3,41.3 1417.1,37.6 1355.5,36.4 1187.8,34.4 1186.8,34.4 621.0,27.6 655.2,204.7 656.4,375.2 629.6,572.3 86.9,558.2 1.0,991.7 1.0,1305.1 37.9,1515.5 64.1,1510.7 91.9,1833.2 257.9,1842.1 260.1,1827.5 1392.0,1912.0 1416.2,1912.0 1460.1,1912.0 1460.3,1899.2 1539.7,1910.8 1533.2,1644.1 1563.7,1436.1 1548.3,1441.0 1528.2,1439.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0034__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[652.0,1084.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10104414963403,41.34353751731772]}},{"type":"Feature","properties":{"resourceCoords":[1472.0,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09903582831399,41.34367513983019]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0035/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p35","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.72"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0035/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0035","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1363.0,1.0 1283.2,1.0 1284.6,12.6 1218.2,22.2 91.9,100.6 91.8,115.3 251.2,100.8 300.0,727.7 291.5,776.3 88.5,642.2 81.3,1808.4 798.5,1883.0 1088.6,1789.9 1523.2,1784.8 1572.5,1702.1 1585.8,1313.0 1363.0,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0035/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[274.0,592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1008385467636,41.34120592396933]}},{"type":"Feature","properties":{"resourceCoords":[551.0,922.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10005971086106,41.34068221355025]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0036/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p36","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0036/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0036","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1121.0,141.3 1121.0,151.0 424.5,155.3 318.0,167.8 230.2,190.5 8.7,297.6 1.0,301.2 1.0,512.3 240.6,1912.0 269.1,1889.8 1534.8,1849.5 1597.2,1667.9 1583.2,164.5 1520.5,38.4 1330.9,16.9 1121.0,141.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0036/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1121.0,895.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0957378,41.3425917]}},{"type":"Feature","properties":{"resourceCoords":[1121.0,151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0959966,41.343962]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0037/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p37","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.51"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0037/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0037","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1402.5,1817.8 704.1,1783.0 596.6,1789.5 507.3,1807.3 255.8,1912.0 236.1,1912.0 81.2,553.7 5.7,556.9 56.4,538.8 84.6,61.9 223.2,111.8 293.1,58.9 925.8,14.2 1554.2,65.2 1597.5,927.7 1523.6,1447.6 1550.9,1683.2 1612.0,1699.5 1403.2,1808.1 1402.5,1817.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0037/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[129.0,538.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09969628549703,41.34582588292898]}},{"type":"Feature","properties":{"resourceCoords":[1406.0,1799.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09599734841302,41.34399731906854]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0038/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p38","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.53"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0038/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0038","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.9,1.0 212.2,1.0 151.6,1001.0 198.2,1001.2 142.0,1431.7 142.0,1557.8 117.3,1620.6 92.2,1812.7 181.7,1873.3 1507.5,1772.2 1508.3,1713.3 1219.5,1525.8 1192.5,1255.0 1276.5,1083.7 1217.2,1040.2 1412.9,680.0 1550.1,217.2 1484.5,169.9 1441.0,229.2 1307.8,210.1 1073.2,46.1 352.7,28.7 302.9,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0038/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[142.0,1001.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0970697,41.3637971]}},{"type":"Feature","properties":{"resourceCoords":[142.0,476.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0959592,41.364289]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p4","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"458.6,35.2 923.3,82.2 975.0,85.0 1201.7,76.3 1397.8,64.8 1403.5,151.7 1407.3,368.8 1413.3,369.2 1487.3,603.9 1499.1,595.1 1499.2,596.4 1514.4,1298.8 1584.7,1623.9 1564.0,1747.0 1468.9,1833.1 1222.8,1861.4 960.1,1748.1 586.4,1857.9 430.6,1739.8 275.0,1737.7 321.3,1691.2 230.3,1419.6 137.2,1350.1 53.0,1029.8 41.5,1028.9 126.0,716.1 142.7,724.6 178.6,466.1 158.0,453.0 398.4,60.3 438.2,38.4 458.6,35.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1008.0,84.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0961114,41.3538949]}},{"type":"Feature","properties":{"resourceCoords":[158.0,453.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0959166,41.3521992]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0041/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p41","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0041/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0041","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1508.0,26.6 1165.6,26.0 873.7,80.5 458.2,74.1 289.8,136.1 184.4,85.9 59.4,136.8 38.9,205.6 58.3,516.5 1.0,547.4 1.0,557.0 261.4,919.9 302.2,946.0 229.6,1139.0 213.9,1170.8 112.8,1340.6 302.6,1492.5 287.3,1515.1 617.6,1816.6 665.4,1783.3 913.1,1617.6 1178.8,1393.4 1209.7,1377.6 1220.1,1431.6 1343.3,1511.1 1519.9,1395.5 1522.9,1362.0 1567.8,864.0 1582.9,728.0 1587.9,643.5 1588.6,535.5 1587.4,425.1 1566.5,429.9 1545.8,1.0 1517.2,1.0 1508.0,26.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0041/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[330.0,765.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1138902532967,41.357593489906535]}},{"type":"Feature","properties":{"resourceCoords":[604.0,1135.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.11163132612721,41.35783683597085]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p42 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"718.5,22.9 191.4,25.5 67.5,61.3 44.2,100.9 65.5,207.8 19.9,353.9 48.3,352.6 88.9,786.0 109.7,780.2 116.0,891.6 120.2,1000.7 119.0,1086.3 109.9,1224.4 87.2,1729.5 81.5,1858.3 300.8,1826.0 302.7,1842.2 531.8,1763.4 523.6,1726.2 805.1,1832.6 805.3,1833.8 821.7,1912.0 885.1,1874.9 1195.8,1872.5 1211.5,1841.8 1392.5,1865.7 1536.0,1805.4 1534.9,1489.8 1561.3,1469.7 1559.5,1274.2 1596.0,1192.4 1561.1,734.7 1542.3,681.9 1431.0,667.4 1429.1,642.9 1409.6,667.4 1167.6,627.7 1164.9,628.0 1164.9,627.3 1163.2,627.0 1116.1,462.9 1113.2,122.8 1118.8,89.4 1160.3,71.3 1160.3,70.9 1059.7,60.0 1061.5,3.1 959.1,5.2 858.1,2.3 858.1,38.1 763.6,27.9 718.5,22.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[121.0,781.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.11238105393481,41.362344806242426]}},{"type":"Feature","properties":{"resourceCoords":[739.0,1376.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10832195199474,41.363169789676114]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p42 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4638.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1813.2"},{"label":"split_canvas_h","value":"2512.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1258.2,589.8 1255.5,554.6 1355.0,549.7 1455.5,539.8 1458.1,596.0 1559.9,599.1 1586.7,585.3 1542.3,541.4 1588.6,512.9 1588.2,362.2 1563.5,339.8 1549.6,344.7 1537.5,309.4 1579.2,293.1 1590.5,165.2 1536.3,26.2 1412.8,20.8 1375.7,56.0 1343.5,16.8 1231.6,34.1 1175.7,180.4 1186.1,332.8 1232.2,366.6 1181.7,389.2 1188.2,579.9 1164.5,582.2 1164.5,582.5 1164.5,586.9 1258.2,589.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0042__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1258.5,559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.113771108461,41.366143350995415]}},{"type":"Feature","properties":{"resourceCoords":[1468.2,559.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.113167895924,41.36678130468588]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0043__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p43 [1]","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"18"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0043__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0043","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"655.0,1864.7 751.5,1856.3 784.8,1861.6 846.3,1848.0 1062.5,1829.2 1057.6,1806.4 1552.8,1728.3 1562.4,1771.7 1594.8,1663.2 1601.9,1476.9 1564.5,756.4 1453.8,739.1 1443.6,727.7 1456.7,709.6 1371.3,709.0 1323.6,704.5 1101.0,608.6 939.6,66.9 855.0,31.5 392.3,22.5 343.9,52.9 95.3,83.2 42.4,339.1 36.7,568.2 78.9,897.7 48.5,1249.5 27.9,1300.5 22.9,1299.3 323.0,1543.0 287.0,1459.0 509.9,1649.5 497.1,1651.5 492.9,1806.9 656.7,1860.5 655.0,1864.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0043__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[874.0,968.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0991964,41.3665094]}},{"type":"Feature","properties":{"resourceCoords":[977.0,597.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0992824,41.3679277]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p44 [1]","metadata":[{"label":"streets","value":"15"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"504.8,34.5 486.9,71.0 237.3,141.2 96.4,141.1 101.8,237.9 227.8,275.5 230.9,303.1 193.3,429.1 100.3,447.0 73.5,766.6 38.3,859.0 93.5,1363.1 53.0,1652.0 73.0,1699.9 29.1,1808.7 85.5,1875.0 337.7,1878.5 385.3,1821.8 385.0,1758.0 595.7,1751.4 757.0,1748.2 817.9,1750.6 845.3,1766.8 881.7,1664.7 925.3,1554.5 1007.2,1348.6 1061.6,1233.0 1122.3,1120.9 1170.4,1041.5 1201.0,997.0 1223.5,970.7 1322.2,874.4 1344.5,848.2 1390.5,782.2 1402.1,794.6 1402.1,764.5 1423.6,725.5 1438.2,681.5 1468.0,563.5 1495.8,483.3 1527.9,380.0 1554.7,277.3 1571.5,230.8 1598.0,173.5 1612.0,143.2 1612.0,140.1 1576.2,151.5 1507.8,179.4 1500.9,160.1 1494.9,143.5 1324.8,200.8 1339.8,245.5 1100.3,177.8 1034.8,1.0 1010.0,1.0 881.5,29.0 764.5,51.3 515.8,64.3 504.8,34.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[385.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1105563,41.3417403]}},{"type":"Feature","properties":{"resourceCoords":[1033.0,-4.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1099812,41.3486643]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p44 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3414.8"},{"label":"split_canvas_y","value":"4675.2"},{"label":"split_canvas_w","value":"3037.2"},{"label":"split_canvas_h","value":"2976.8"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1102.5,1320.9 1056.2,1375.8 912.0,1866.9 943.4,1882.3 950.0,1895.2 939.4,1905.0 1095.2,1912.0 1348.4,1912.0 1397.2,1886.7 1400.4,1829.1 1409.3,1777.3 1445.1,1639.1 1477.1,1530.1 1557.8,1277.5 1531.2,1260.9 1471.1,1257.0 1311.8,1256.4 1103.8,1258.0 1102.5,1320.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0044__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1301.3,1264.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10960924993104,41.34194469680712]}},{"type":"Feature","properties":{"resourceCoords":[1105.5,1455.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.11024408065003,41.34103881238337]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0045/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p45","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0045/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0045","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.6,831.3 70.2,778.6 56.9,633.7 50.0,518.1 40.1,248.0 42.4,139.0 49.0,19.9 680.0,63.6 666.5,215.7 1069.5,324.8 1097.9,326.8 1144.6,330.0 1177.5,327.2 1272.0,301.8 1534.5,230.9 1612.0,533.0 1612.0,557.5 1501.4,509.3 1597.7,1079.6 1573.1,1081.3 1575.8,1632.3 1612.0,1632.2 1612.0,1655.6 1146.0,1912.0 1113.8,1912.0 1123.2,1845.0 727.4,1879.4 72.2,1841.2 29.4,1416.5 65.5,930.4 58.0,929.1 96.4,887.6 79.6,831.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0045/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1038.0,1033.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10361359074548,41.33919807637978]}},{"type":"Feature","properties":{"resourceCoords":[8.0,535.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10857438833052,41.34114565396962]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0046/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p46","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.67"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0046/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0046","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1600.7,1798.8 1581.1,1864.0 754.3,1874.5 571.2,1831.2 87.2,1826.5 85.5,1368.7 38.5,1278.9 13.8,1066.2 37.5,736.9 78.0,649.6 91.8,496.6 58.6,359.5 80.4,282.9 27.3,75.5 70.1,44.4 330.1,33.6 422.4,72.6 728.4,32.5 753.3,1.9 781.7,17.8 1315.9,38.7 1328.1,18.6 1414.2,69.9 1533.6,60.6 1574.3,214.6 1612.0,950.7 1612.0,956.6 1583.8,1171.8 1612.0,1797.7 1612.0,1801.0 1600.7,1798.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0046/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[164.0,731.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10414687664286,41.33257994883121]}},{"type":"Feature","properties":{"resourceCoords":[359.0,1169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1022765759166,41.331531618340286]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0054__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p54 [2]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.34"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"5146.4"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0054__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0054","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1563.0,40.0 1249.9,28.9 1275.7,94.0 1212.0,104.2 873.8,20.2 118.8,34.1 20.9,1085.4 1.0,1082.5 1.0,1129.3 236.1,1157.7 387.4,1169.6 711.6,1177.1 1546.0,1177.6 1551.8,1093.5 1577.2,1093.8 1563.0,40.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0054__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[820.0,1177.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.081985,41.359974]}},{"type":"Feature","properties":{"resourceCoords":[1546.0,1177.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0803233,41.3600809]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0055/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p55","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0055/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0055","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"128.1,1784.1 121.7,1522.0 49.6,1263.2 144.8,134.6 377.1,141.0 536.0,34.0 754.9,60.1 756.0,103.5 975.7,124.2 1116.3,131.4 1417.2,130.2 1391.9,488.4 1387.5,597.1 1396.7,847.4 1446.0,1469.7 1447.2,1574.8 1431.6,1782.2 1197.6,1764.2 790.7,1727.7 616.3,1715.3 614.5,1667.8 303.0,1741.9 295.9,1812.1 128.1,1784.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0055/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1507.0,122.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08201231026588,41.35998401813393]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,1758.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08204971035691,41.35693650874506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0056/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p56","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0056/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0056","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"905.8,1.0 881.9,1.0 877.6,78.9 95.6,89.1 65.3,450.6 59.4,560.4 65.2,813.3 106.8,1442.5 106.5,1548.8 88.0,1758.0 508.7,1797.5 773.8,1821.7 795.0,1469.1 1241.0,1542.9 1612.0,1568.6 1612.0,1533.3 1499.2,1527.1 1584.2,856.9 1552.0,589.9 1453.9,421.1 1481.7,136.4 1370.0,54.8 907.1,50.9 905.8,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0056/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1341.0,797.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0790641,41.3588245]}},{"type":"Feature","properties":{"resourceCoords":[1229.0,1541.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.079207,41.3574445]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0057/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p57","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0057/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0057","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1455.0,1585.2 1449.2,1359.2 1499.6,1286.4 1521.3,898.8 1530.7,829.7 1568.3,658.4 1562.6,445.2 1139.8,453.4 902.5,458.8 489.3,463.0 312.6,468.1 305.9,420.5 1.0,526.1 1.0,597.9 34.5,600.0 32.2,901.3 139.1,1176.0 155.1,1564.7 376.1,1761.3 543.3,1760.8 619.8,1653.3 651.3,1636.0 938.6,1642.5 1410.8,1674.5 1414.5,1581.2 1455.0,1585.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0057/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[968.0,1312.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0824648209986,41.35533174630337]}},{"type":"Feature","properties":{"resourceCoords":[1143.0,461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08195092425153,41.356881295733935]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0058/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p58","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0058/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0058","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.0,460.1 136.2,671.9 94.5,840.9 83.5,909.2 51.9,1293.2 1.0,1362.8 1.0,1588.6 546.5,1602.3 1263.9,1639.4 1552.0,1243.3 1556.2,1272.4 1608.1,1090.2 1581.7,1090.2 1590.2,215.8 1530.0,92.8 1206.2,103.2 1208.3,138.1 838.8,144.8 391.0,110.3 400.5,461.1 136.0,460.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0058/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[836.0,152.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07918459613747,41.35742925231242]}},{"type":"Feature","properties":{"resourceCoords":[413.0,459.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08023953843853,41.35687283809885]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0059/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p59","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0059/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0059","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"134.7,1829.8 81.3,1776.2 33.0,1325.2 56.1,966.4 20.2,712.0 42.1,224.1 30.4,222.4 76.0,174.8 92.8,168.6 234.3,192.7 465.2,242.8 473.9,196.9 765.8,241.8 1121.9,303.6 1289.7,123.1 1290.0,137.9 1327.0,50.0 1572.2,79.3 1570.4,1251.2 1612.0,1252.1 1612.0,1269.4 1612.0,1285.1 1385.4,1568.5 1384.8,1560.2 1052.6,1525.9 1017.8,1524.0 991.4,1528.9 932.8,1549.2 823.0,1612.4 635.5,1726.0 592.7,1658.8 463.8,1851.5 134.7,1829.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0059/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[479.0,216.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.08136481675629,41.35473597169103]}},{"type":"Feature","properties":{"resourceCoords":[1411.0,348.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07675269298053,41.354612186695675]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p5 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"},{"label":"confidence","value":"0.98"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"10.1,1326.7 506.6,1411.8 512.6,1412.8 525.5,1443.3 509.9,1469.3 418.4,1623.0 412.3,1692.7 499.8,1912.0 518.6,1912.0 526.7,1912.0 535.0,1896.4 852.5,1550.6 885.9,1510.7 1015.4,1323.0 1124.2,1158.2 1197.5,1206.0 1374.5,1333.5 1378.5,1329.0 1612.0,1410.6 1612.0,1395.8 1520.8,1330.7 1568.8,996.8 1517.8,373.6 1445.2,334.2 1361.2,133.8 961.8,163.3 697.5,144.6 337.3,106.5 309.2,187.4 159.0,577.0 235.3,624.2 292.9,697.0 286.4,712.0 51.9,1254.5 10.1,1326.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[920.0,771.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0966199,41.3551401]}},{"type":"Feature","properties":{"resourceCoords":[159.0,577.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0985273,41.3550413]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p5 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3583.6"},{"label":"split_canvas_y","value":"5405.6"},{"label":"split_canvas_w","value":"2868.4"},{"label":"split_canvas_h","value":"2246.4"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1110.9,1776.8 1127.7,1786.0 1299.2,1883.9 1341.3,1909.4 1486.1,1524.6 1513.0,1444.8 1258.8,1426.4 1132.2,1423.6 1081.8,1407.7 1065.8,1451.3 1064.5,1465.1 1059.7,1486.0 1013.5,1635.8 1009.6,1645.3 1000.6,1662.2 983.0,1686.4 974.0,1700.6 973.8,1701.4 1015.6,1724.4 1026.6,1730.4 1110.9,1776.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[994.8,1688.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09951090346898,41.355235762729315]}},{"type":"Feature","properties":{"resourceCoords":[1325.3,1944.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0985388743749,41.354971135016946]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0060__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p60 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0060__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0060","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1070.2,997.1 1067.2,995.3 1067.5,994.3 1064.4,991.1 1101.7,657.9 1197.0,338.7 1214.6,326.5 1269.0,330.9 1263.2,306.9 1275.4,302.8 1372.2,325.0 1431.4,166.6 1495.0,114.8 1326.0,55.0 1315.7,86.4 1011.5,284.9 1013.6,276.8 708.5,140.3 676.0,127.6 649.3,124.0 587.2,125.0 463.1,150.7 249.2,200.1 229.6,122.7 46.7,265.6 91.2,283.6 68.0,558.8 145.2,762.5 62.0,1135.4 83.2,1213.4 65.8,1430.8 27.0,1526.0 109.7,1700.0 100.0,1784.2 138.9,1813.8 685.8,1814.5 936.2,1874.8 1288.7,1860.5 1396.6,1889.0 1579.3,1858.5 1547.9,1651.2 1559.4,1330.6 1160.4,1090.7 1070.2,997.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0060__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[487.0,1498.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07615517944221,41.34527615224007]}},{"type":"Feature","properties":{"resourceCoords":[342.0,574.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07866008527664,41.34815560593865]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0063/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p63","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0063/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0063","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,822.6 1612.0,1548.3 1588.8,1802.2 1556.5,1861.8 767.4,1882.2 385.8,1839.0 80.8,1844.2 23.9,1351.2 80.5,665.8 66.3,108.0 79.4,69.3 656.0,30.4 837.0,60.8 1021.9,39.0 1557.8,79.3 1570.7,600.5 1612.0,793.6 1612.0,822.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0063/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[791.0,859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.07168993190007,41.33934787696934]}},{"type":"Feature","properties":{"resourceCoords":[1617.0,859.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.06765992755592,41.33893113044839]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1317.5,1909.5 1573.6,1912.0 1591.9,1052.1 1351.6,1046.5 1350.9,1013.1 1332.6,163.9 1331.7,122.2 1111.0,129.7 996.4,117.2 550.8,1.0 214.1,1.0 1.0,61.5 1.0,171.8 166.3,909.2 266.2,895.2 235.2,1647.7 286.9,1646.5 470.3,1549.8 1225.3,1859.8 1298.7,1902.0 1317.5,1909.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[675.0,1037.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10301888129374,41.35565306784964]}},{"type":"Feature","properties":{"resourceCoords":[1.0,71.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10254604414096,41.357793003302206]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"992.2,1690.5 1107.0,1663.7 1211.6,1657.0 1341.4,1663.0 1403.3,1680.5 1449.4,1605.6 1478.4,1521.3 1494.2,1433.9 1546.8,1143.8 1552.0,1058.2 1545.2,655.2 1538.4,608.5 1507.9,531.5 1229.9,14.3 1222.8,1.0 1127.3,1.0 1046.2,30.3 814.0,120.3 706.3,164.7 646.6,189.3 644.1,171.1 623.6,115.2 546.5,1.0 397.2,1.0 355.2,13.7 243.9,1.0 149.7,1.0 145.1,28.0 1.8,866.1 1.0,881.1 1.0,900.2 231.3,950.2 48.8,1798.0 636.6,1912.0 710.1,1912.0 715.1,1881.7 720.6,1805.6 833.6,1744.6 926.0,1706.1 992.2,1690.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1543.0,1125.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.09898716561108,41.352857023016554]}},{"type":"Feature","properties":{"resourceCoords":[23.0,896.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10178850809082,41.35474760658365]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p9 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3938.4"},{"label":"split_canvas_w","value":"3817.6"},{"label":"split_canvas_h","value":"3713.6"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"149.5,1614.7 659.5,1677.2 653.5,1740.7 707.5,1562.2 625.0,1166.3 271.7,1073.3 269.1,1060.3 203.6,1041.9 34.9,1089.0 30.1,1153.9 117.2,1159.5 120.7,1611.2 149.5,1614.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[136.1,1607.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.10201094667487,41.359143865094936]}},{"type":"Feature","properties":{"resourceCoords":[50.0,1137.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.1020658749489,41.360021173471225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"New London, Connecticut | 1921 | sanborn01152_007 p9 [2]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"17"},{"label":"confidence","value":"0.97"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-24T15:19:09Z","modified":"2026-10-24T15:19:09Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1150.8,1736.2 1226.0,1775.2 1325.0,1842.0 1371.0,1850.7 1450.2,1891.8 1498.2,1912.0 1492.6,1877.1 1464.8,1816.5 1459.2,1732.3 1460.3,1029.8 1469.9,584.5 1462.1,503.4 1441.0,423.8 1329.8,149.6 1294.0,43.4 1282.7,50.1 864.5,100.7 863.2,93.5 804.3,268.6 812.2,205.9 309.9,128.4 176.5,780.5 151.0,854.0 368.7,944.5 624.5,1147.3 901.5,1515.2 982.8,1595.5 1158.8,1725.6 1150.8,1736.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784nm:g3784nm_g011521921:01152_1921-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1461.0,977.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.0993635,41.3573388]}},{"type":"Feature","properties":{"resourceCoords":[151.0,854.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.102557,41.3578167]}}]}}]}