{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01178_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Southington, Connecticut | 1901 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"23"},{"label":"placed","value":"13"},{"label":"unplaced","value":"10"},{"label":"fit sources","value":"georef-snap 7, snap:0 4, georef 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"8 sheet(s) cut into 19 panels"},{"label":"unplaced pages","value":"p11__2 (tier 1, 41.58562,-72.89120 +/-124m); p12__1 (tier 4, 41.59575,-72.88409 +/-1190m); p12__2 (tier 4, 41.59575,-72.88409 +/-1190m); p12__3 (tier 4, 41.59575,-72.88409 +/-1190m); p12__4 (tier 4, 41.59575,-72.88409 +/-1190m); p1__2 (tier 1, 41.58825,-72.89826 +/-126m); p1__3 (tier 1, 41.59470,-72.87632 +/-100m); p2__2 (tier 1, 41.60740,-72.87797 +/-217m); p3__1 (tier 1, 41.59961,-72.88620 +/-114m); p6__2 (tier 1, 41.59171,-72.88897 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.74"},{"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":"6719.6"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"139.5,157.4 140.2,209.2 142.4,364.1 167.7,687.7 166.6,775.6 146.8,865.0 62.5,1133.6 76.0,1195.8 120.7,1312.4 188.1,1458.3 299.1,1673.5 415.6,1675.4 653.1,1653.8 627.5,1457.7 673.7,1211.6 698.2,1205.6 794.5,1207.1 1135.3,1212.4 1367.8,1212.8 1511.0,1160.3 1561.5,1072.5 1481.7,500.2 1326.9,482.3 1245.2,250.0 1457.7,135.5 1014.6,35.1 598.4,53.1 591.5,36.9 139.1,127.2 139.5,157.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1026.0,95.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.89275664337957,41.589411860934625]}},{"type":"Feature","properties":{"resourceCoords":[57.0,1156.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.89050531819908,41.58727673053552]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p10 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.60"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2748.0"},{"label":"split_canvas_y","value":"4822.8"},{"label":"split_canvas_w","value":"3704.0"},{"label":"split_canvas_h","value":"2829.2"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1588.9,1663.8 1558.2,1663.8 1476.0,1217.8 1445.0,1217.3 1234.3,1302.6 1103.5,1212.9 799.1,1287.4 709.5,1424.5 708.9,1912.0 1423.8,1912.0 1598.9,1663.8 1588.9,1663.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[687.0,1205.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.89501398572837,41.58883599722387]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1205.7],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.89273829986475,41.588580308525486]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.89299784730099,41.58726976441611]}},{"type":"Feature","properties":{"resourceCoords":[687.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.89527353316461,41.587525453114495]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p10 [3]","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":"6675.2"},{"label":"split_canvas_w","value":"2760.8"},{"label":"split_canvas_h","value":"976.8"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"312.3,1721.2 1.0,1810.7 1.0,1878.9 15.2,1911.5 671.3,1906.6 652.3,1682.2 301.6,1697.8 312.3,1721.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0010__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1668.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88924530185787,41.587020064392426]}},{"type":"Feature","properties":{"resourceCoords":[690.2,1668.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.8890425479904,41.58831013342674]}},{"type":"Feature","properties":{"resourceCoords":[690.2,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88843439111406,41.588255908314004]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88863714498153,41.58696583927969]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p11 [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":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"857.5,65.2 853.0,34.3 124.7,26.7 53.4,84.2 53.7,1015.6 134.8,1520.1 268.3,1525.2 387.4,1732.5 787.7,1872.5 1180.4,1860.7 1200.1,1891.1 1189.5,1827.7 1477.6,1690.0 1463.5,1669.2 1456.0,1658.2 1321.8,1460.5 1238.4,1325.4 1180.7,1216.4 1160.2,1157.0 1211.0,883.8 1219.7,793.8 1210.3,707.5 1147.2,393.2 1126.7,241.7 1121.1,200.6 857.5,65.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1154.0,1151.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.89058052889173,41.587286137201254]}},{"type":"Feature","properties":{"resourceCoords":[758.0,2025.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.88871555699527,41.58608907107315]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p2 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.70"},{"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":"3262.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"378.1,1.0 240.7,1.0 274.1,175.7 107.9,298.8 61.0,490.1 108.5,579.8 49.6,986.1 135.1,1273.7 235.9,1284.8 259.5,1447.4 226.1,1590.6 116.4,1771.2 773.0,1789.7 733.0,946.3 790.2,570.6 729.4,134.0 739.9,130.8 377.2,23.5 378.1,1.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[374.8,605.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.87517808162953,41.599976834534026]}},{"type":"Feature","properties":{"resourceCoords":[374.8,1545.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.87294634984032,41.59965707744625]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p3 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.73"},{"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":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1485.5,57.6 1452.2,32.2 610.0,41.5 471.6,166.7 90.0,322.1 76.6,906.8 196.0,988.0 416.1,993.0 488.0,993.0 488.8,994.7 495.5,994.8 639.5,1247.8 622.5,1682.6 683.9,1805.3 861.9,1817.5 1530.9,1619.8 1532.8,1541.9 1526.8,1478.0 1535.8,956.7 1537.3,642.6 1479.8,638.2 1489.1,140.6 1485.5,57.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[694.0,575.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.87814653468457,41.60467260251874]}},{"type":"Feature","properties":{"resourceCoords":[1477.0,575.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.87810126333113,41.60319215621924]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.83"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1488.2,710.8 1477.7,835.4 1482.1,922.6 1543.0,1247.2 1612.0,1590.8 1612.0,1692.9 1612.0,1761.8 1146.5,1845.2 848.6,1788.2 819.3,1772.7 791.1,1758.3 495.8,1776.6 92.6,1789.0 84.9,1725.2 80.0,1203.1 73.3,888.6 15.6,885.8 11.7,387.3 5.8,304.4 50.6,336.6 357.6,292.7 735.2,41.3 878.3,83.7 1282.0,40.5 1604.4,205.6 1612.0,301.3 1612.0,313.9 1578.6,317.6 1488.2,710.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1143.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8782516957313,41.60105484955949]}},{"type":"Feature","properties":{"resourceCoords":[98.0,1779.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.88051772306349,41.6030346179003]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.49"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"799.5,146.5 803.9,69.5 1202.8,81.0 1495.5,80.3 1522.5,96.2 1518.8,156.1 1512.3,532.4 1509.7,810.3 1517.6,878.5 1514.8,951.8 1491.2,1011.0 1416.2,1253.9 1612.0,1475.0 1612.0,1518.5 1557.4,1510.3 1552.9,1842.6 1338.9,1873.1 905.4,1778.1 573.0,1773.6 572.3,1660.3 281.1,1679.4 280.8,1559.1 134.2,1522.6 92.0,1265.5 63.9,881.8 130.7,320.4 799.5,146.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[780.0,384.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.88134811543615,41.60305686830756]}},{"type":"Feature","properties":{"resourceCoords":[132.0,1103.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.88327337403663,41.60421529676919]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.41"},{"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":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1295.7,1733.5 1286.3,1817.2 1407.2,1833.2 1521.3,905.0 1558.3,903.0 1474.1,418.6 1533.4,121.3 1549.2,92.1 1488.1,91.6 1105.5,105.2 823.1,117.5 754.2,129.1 679.7,130.3 618.2,109.7 367.5,47.0 153.5,256.4 109.2,259.7 33.3,1045.0 104.0,1459.2 53.2,1644.6 31.8,1649.9 280.6,1769.7 291.4,1677.2 649.2,1696.6 649.2,1694.7 649.2,1503.7 649.2,1253.0 839.0,1253.0 1079.5,1253.0 1079.5,1296.0 1079.5,1562.2 1079.5,1719.9 1295.7,1733.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88439748303023,41.601838304645526]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.8803489250081,41.601846784090654]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88033557095494,41.598230888293315]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88438412897708,41.59822240884819]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p7","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.28"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1437.7,1509.7 1526.9,1527.3 1503.5,1083.2 1554.8,1028.3 1504.9,1000.4 1591.8,685.1 1542.8,159.0 1367.5,34.4 936.5,40.8 716.4,122.7 357.9,16.1 359.6,1.0 200.2,1.0 60.5,400.1 35.0,529.0 29.4,620.6 55.3,966.6 87.3,1333.6 67.4,1512.1 87.4,1510.8 85.4,1549.5 1372.2,1845.4 1437.7,1509.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1114.0,529.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8778692,41.5984942]}},{"type":"Feature","properties":{"resourceCoords":[35.0,529.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8781472,41.6004224]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p8","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.70"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.6,1741.7 62.7,1834.9 281.4,1889.5 703.9,1830.4 705.2,1912.0 732.7,1912.0 768.5,1494.4 665.4,1491.6 669.7,1282.5 1612.0,1297.6 1612.0,1293.9 1612.0,1268.5 1576.4,1267.3 1568.4,80.7 1460.8,31.1 914.1,20.0 779.5,83.4 516.4,25.3 510.2,1.0 421.0,1.0 421.8,334.8 92.0,324.4 86.7,449.1 1.0,447.4 1.0,495.6 6.0,668.6 1.0,669.0 1.0,1110.7 21.7,1108.8 34.7,1474.8 73.4,1475.9 130.5,1477.3 30.6,1741.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[422.0,456.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.881245,41.597798]}},{"type":"Feature","properties":{"resourceCoords":[422.0,1485.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8837621,41.5979628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_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":"Southington, Connecticut | 1901 | sanborn01178_004 p9 [1]","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":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4595.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"348.9,51.4 40.6,206.5 48.2,815.4 103.5,859.6 130.2,1107.8 85.5,1162.8 143.3,1364.7 238.4,1376.0 265.4,1559.6 379.4,1611.9 393.9,1746.6 691.2,1757.7 689.3,1820.3 868.1,1815.6 867.3,1912.0 889.9,1912.0 1043.5,1912.0 1043.9,1887.6 1039.0,1835.1 1103.5,1763.6 1116.4,914.5 1088.0,915.0 1085.2,1.0 880.8,1.0 880.0,100.2 471.2,73.7 470.7,47.0 348.9,51.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.8860301587663,41.59769658565045]}},{"type":"Feature","properties":{"resourceCoords":[1148.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88316107065951,41.59746439447307]}},{"type":"Feature","properties":{"resourceCoords":[1148.8,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88367437459526,41.5938668606364]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88654346270205,41.594099051813785]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Southington, Connecticut | 1901 | sanborn01178_004 p9 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.49"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4540.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1912.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T02:40:17Z","modified":"2026-10-20T02:40:17Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1603.0,1722.5 1603.0,1602.0 1603.9,1601.9 1605.4,1257.6 1521.3,854.0 1609.8,693.5 1560.2,248.6 1385.5,250.7 1385.1,155.0 1207.9,161.8 1176.9,1872.5 1554.9,1855.8 1603.0,1722.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784sm:g3784sm_g011781901:01178_1901-0009__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1135.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88493204884206,41.59445643238309]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88372937163165,41.594348102492745]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.88430380543798,41.59073053779056]}},{"type":"Feature","properties":{"resourceCoords":[1135.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.8855064826484,41.590838867680915]}}]}}]}