{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01119_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Derby, Connecticut | 1901 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"24"},{"label":"placed","value":"8"},{"label":"unplaced","value":"16"},{"label":"fit sources","value":"georef-snap 5, georef 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p11__1 (tier 1, 41.32281,-73.08042 +/-147m); p11__2 (tier 1, 41.32322,-73.08041 +/-214m); p11__3 (tier 1, 41.31252,-73.07751 +/-119m); p12 (tier 3, 41.31865,-73.09889 +/-561m); p13 (tier 3, 41.32033,-73.09631 +/-561m); p14 (tier 3, 41.31802,-73.09397 +/-561m); p15 (tier 3, 41.31590,-73.09152 +/-561m); p16 (tier 3, 41.31256,-73.09318 +/-561m); p17 (tier 3, 41.31362,-73.08999 +/-561m); p18__1 (tier 3, 41.32028,-73.09549 +/-561m); p18__2 (tier 3, 41.32028,-73.09549 +/-561m); p18__3 (tier 3, 41.32028,-73.09549 +/-561m); p18__4 (tier 3, 41.32028,-73.09549 +/-561m); p5 (tier 1, 41.32289,-73.09044 +/-252m); p8__2 (tier 1, 41.31994,-73.08676 +/-125m); p9__2 (tier 1, 41.31864,-73.08076 +/-149m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p10","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.69"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"557.5,77.8 560.6,88.7 648.1,68.1 696.4,68.8 1227.2,76.9 1228.0,100.0 1573.7,145.8 1508.9,437.9 1581.3,1205.8 1538.2,1718.4 1409.8,1762.9 1411.9,1832.4 321.3,1887.2 143.0,1783.1 37.1,1072.5 37.3,458.0 61.7,386.9 99.9,409.2 136.6,7.2 557.5,77.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1066.0,1287.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0774755350053,41.31385528757377]}},{"type":"Feature","properties":{"resourceCoords":[1254.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.07855517356047,41.31592667070888]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.64"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1555.7,1723.5 1309.6,1745.0 1308.6,1592.8 134.9,1912.0 113.1,1912.0 86.5,1912.0 105.8,1897.7 21.4,1809.0 42.0,428.0 220.2,288.9 616.5,208.8 762.3,33.9 1522.5,107.0 1535.4,611.7 1590.7,810.9 1573.2,814.2 1555.7,1723.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[199.0,326.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.09354085341722,41.32994293780502]}},{"type":"Feature","properties":{"resourceCoords":[1268.0,141.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.09084834576956,41.329741712487575]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p3","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.01"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"302.9,44.8 1385.7,184.6 1334.1,311.1 1545.5,378.0 1568.7,325.2 1507.0,1052.2 1570.0,1066.0 1576.9,1098.6 1570.6,1483.3 1557.1,1912.0 1544.0,1912.0 1544.4,1886.0 551.7,1854.1 299.9,1783.8 326.1,1572.1 150.5,1517.7 51.8,1420.8 21.0,1091.3 108.9,802.5 35.6,448.2 55.3,79.3 232.2,35.7 299.5,44.4 302.9,44.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1198.0,985.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0919624,41.3253956]}},{"type":"Feature","properties":{"resourceCoords":[1570.0,1066.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0909089,41.3253234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"715.2,1759.1 1077.1,1751.0 1092.7,1834.4 1479.2,1709.9 1444.6,1550.3 1429.3,1520.3 1396.6,1454.0 1490.6,1435.3 1526.4,1490.5 1588.8,1436.7 1564.4,1431.3 1482.2,615.2 1423.3,578.3 1404.2,433.4 1405.8,203.2 1476.8,134.5 891.6,57.9 591.5,138.8 348.6,68.5 321.9,68.3 308.2,1.0 290.6,1.0 123.8,798.2 219.5,1576.7 288.8,1577.3 303.3,1610.0 337.5,1787.5 716.2,1764.5 715.2,1759.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[950.0,59.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.08887843132814,41.328153221485074]}},{"type":"Feature","properties":{"resourceCoords":[697.0,1581.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.08985825090078,41.325250155292665]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p6","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.86"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1487.1,1802.6 1607.1,1802.8 1592.6,1747.2 1544.5,1436.6 1611.3,479.9 1536.0,103.7 1347.2,20.3 1276.1,60.6 1252.3,1.0 1157.1,1.0 1175.8,70.8 1184.9,103.0 1187.7,264.9 787.6,311.2 788.6,227.2 434.9,165.0 434.9,170.4 62.0,119.5 60.6,350.6 51.1,807.8 37.1,809.0 31.2,1813.1 422.5,1809.9 795.0,1820.1 795.4,1794.6 1161.2,1799.5 1160.4,1831.2 1481.8,1830.2 1487.1,1802.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[425.0,1154.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0895854,41.3229773]}},{"type":"Feature","properties":{"resourceCoords":[1171.0,1154.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0876538,41.3231416]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p7","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.43"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1472.0,1889.5 886.5,1872.5 770.9,1784.9 318.7,1746.7 311.1,1614.6 142.8,1570.2 135.3,1438.2 42.2,1332.1 86.0,1032.5 51.1,897.7 93.5,888.1 46.3,807.4 172.8,440.1 198.8,180.1 148.2,133.6 449.2,94.5 839.4,86.1 1211.0,91.4 1211.0,66.0 1576.0,66.0 1567.3,689.2 1565.0,1176.2 1567.4,1213.2 1612.0,1212.8 1612.0,1236.1 1612.0,1271.7 1559.5,1272.5 1569.2,1849.6 1472.0,1889.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1211.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0884386,41.3218131]}},{"type":"Feature","properties":{"resourceCoords":[1576.0,66.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.0874897,41.3218843]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.80"},{"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":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"179.2,1156.5 181.3,1195.0 227.8,1195.2 227.2,1256.6 172.4,1256.8 175.9,1859.3 187.5,1854.8 669.4,1872.0 1063.2,1771.2 1217.0,1817.2 1488.1,1782.2 1564.8,1155.3 1299.3,1114.3 1240.2,1112.5 1235.5,1112.4 1157.3,922.4 1085.7,134.6 1054.8,87.8 677.5,38.8 667.6,1.0 542.2,1.0 537.0,28.9 202.3,30.6 187.1,648.1 179.2,1156.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[171.0,1219.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.08723305526038,41.31959590068362]}},{"type":"Feature","properties":{"resourceCoords":[171.0,25.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.08756211648021,41.321826482301134]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Derby, Connecticut | 1901 | sanborn01119_003 p9 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T22:27:53Z","modified":"2026-10-19T22:27:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"621.9,1796.0 939.9,1711.8 1125.8,1662.7 1132.7,1684.2 1471.7,1635.8 1455.0,1337.1 1401.1,1285.7 974.4,1286.8 908.0,1247.0 894.7,1247.0 894.8,1239.0 864.4,1220.8 819.1,72.0 473.4,49.4 253.9,231.7 205.2,1109.2 131.8,1247.2 91.9,1199.4 58.2,1789.0 76.2,1886.5 493.0,1841.4 498.8,1850.8 576.0,1808.2 621.9,1796.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784dm:g3784dm_g011191901:01119_1901-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1147.0,1656.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.07857608714421,41.31593828287616]}},{"type":"Feature","properties":{"resourceCoords":[548.0,1787.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-73.07993250858718,41.31542099638115]}}]}}]}