{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01190_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Wallingford, Connecticut | 1919 | 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":"27"},{"label":"placed","value":"20"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef-snap 14, georef 5, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"7 sheet(s) cut into 18 panels"},{"label":"unplaced pages","value":"p17__2 (tier 1, 41.46490,-72.83453 +/-100m); p17__3 (tier 1, 41.46245,-72.83432 +/-100m); p17__4 (tier 1, 41.46389,-72.83537 +/-100m); p17__5 (tier 1, 41.46516,-72.83558 +/-100m); p17__6 (tier 1, 41.46491,-72.83507 +/-100m); p4__2 (tier 2, 41.45686,-72.82261 +/-160m); p8__2 (tier 1, 41.45873,-72.82118 +/-109m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p10","metadata":[{"label":"streets","value":"14"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1557.8,115.5 1559.0,154.7 1557.9,414.8 1559.8,788.6 1565.6,955.3 1565.7,999.2 1564.7,1186.4 1570.0,1469.0 1573.4,1832.2 1495.2,1806.2 1322.7,1723.6 1232.8,1679.4 1230.5,1715.2 961.5,1630.7 984.5,1579.5 394.0,1880.5 84.2,1881.8 35.1,1812.2 12.2,1343.0 18.7,1103.0 81.7,733.9 37.7,358.7 88.3,186.8 75.8,60.6 168.9,32.4 804.1,17.6 1364.8,50.3 1375.0,44.9 1557.8,115.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[991.0,1565.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8321005,41.455477]}},{"type":"Feature","properties":{"resourceCoords":[952.0,325.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8294385,41.4595755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p11 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"490.7,1080.8 488.5,1037.8 163.4,1070.0 163.0,1099.5 165.7,1380.8 165.7,1742.1 234.4,1758.9 315.8,1766.8 535.1,1747.4 625.8,1738.2 860.3,1712.0 912.5,1709.0 1108.4,1723.4 1229.0,1734.5 1474.1,1759.0 1489.1,1571.9 1505.1,1294.3 1517.1,1048.6 1529.0,910.7 1555.6,464.5 1350.9,452.1 1117.1,439.8 1034.7,434.2 940.9,431.7 923.8,420.0 893.9,414.1 874.3,398.9 877.8,450.4 883.6,530.7 885.8,559.0 889.7,610.8 893.0,654.5 818.8,758.1 819.9,946.5 818.8,946.5 791.8,946.5 786.7,946.5 761.9,946.5 683.9,946.5 545.2,1140.1 494.5,1140.5 490.7,1080.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[167.0,1372.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82934382350723,41.4548248012442]}},{"type":"Feature","properties":{"resourceCoords":[1504.0,1044.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82274574486266,41.4536428663424]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p11 [2]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.71"},{"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":"3279.6"},{"label":"split_canvas_h","value":"3786.0"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"814.4,0.0 0.0,0.0 0.0,946.5 819.9,946.5 814.4,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0011__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.82732073508775,41.45588092880339]}},{"type":"Feature","properties":{"resourceCoords":[819.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.82549387509724,41.45526085183618]}},{"type":"Feature","properties":{"resourceCoords":[819.9,946.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.82644166704284,41.45367013668141]}},{"type":"Feature","properties":{"resourceCoords":[0.0,946.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.82826852703336,41.45429021364862]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"826.7,1531.3 428.4,1556.4 91.3,1559.3 94.3,1369.9 92.4,1089.1 88.5,840.8 91.5,701.1 89.4,249.8 116.2,248.2 371.9,227.3 685.7,197.1 766.3,191.1 1219.2,178.2 1433.8,190.6 1452.8,192.6 1472.4,966.8 1485.5,966.1 1493.9,1187.6 1503.5,1512.2 1502.8,1535.9 826.7,1531.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[95.0,1089.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82329374197671,41.45281440360035]}},{"type":"Feature","properties":{"resourceCoords":[1479.0,599.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81626983341289,41.45175126276633]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p13","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.81"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"184.0,1652.0 155.4,1332.1 134.0,1114.0 121.2,1115.4 56.1,352.2 63.4,352.6 60.2,311.9 204.5,42.6 222.4,90.0 368.9,78.2 505.9,20.0 1324.3,21.9 1459.1,44.7 1565.8,175.0 1590.8,418.5 1531.7,745.9 1561.0,827.5 1560.9,1816.9 1315.3,1838.9 1243.9,1870.0 1087.2,1879.9 721.5,1842.5 680.3,1876.1 685.6,1843.8 678.5,1806.4 442.8,1766.1 186.2,1726.3 184.0,1652.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[134.0,1114.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8171633,41.4505869]}},{"type":"Feature","properties":{"resourceCoords":[184.0,1652.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.818457,41.4488394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p14 [1]","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":"0.0"},{"label":"split_canvas_y","value":"3738.8"},{"label":"split_canvas_w","value":"3071.6"},{"label":"split_canvas_h","value":"3913.2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"674.4,1567.0 639.6,1567.0 638.8,1526.2 629.5,1526.0 613.6,1009.3 406.1,1000.8 180.6,990.2 180.3,1179.4 164.7,1180.5 178.8,1203.3 181.3,1372.2 158.8,1386.6 186.4,1465.2 158.7,1486.1 195.4,1593.7 168.7,1765.5 166.7,1803.7 629.6,1826.7 624.0,1796.1 665.5,1768.8 616.5,1625.4 677.3,1576.9 674.4,1567.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[197.0,1520.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.83410350147123,41.44754796782537]}},{"type":"Feature","properties":{"resourceCoords":[627.9,1520.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.83223391171644,41.446907794222874]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p14 [2]","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"17"},{"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":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1096.1,1912.0 1096.4,1728.0 1315.6,1738.3 1535.7,1747.4 1529.0,1210.0 1528.8,952.1 1522.6,697.1 1524.2,435.1 1303.4,444.2 1222.1,432.4 1154.0,412.4 1077.5,382.1 910.0,290.0 822.9,240.9 818.5,276.5 555.1,177.1 580.9,127.4 1.0,383.1 1.0,395.9 54.3,398.7 102.6,610.5 186.2,705.3 247.2,838.7 232.4,885.8 729.9,924.7 703.5,928.6 762.4,934.0 805.3,1019.2 830.3,1241.6 813.5,1575.8 864.0,1633.4 987.5,1621.3 1057.3,1783.0 1017.0,1809.4 1080.3,1912.0 1096.1,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0014__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1529.0,1210.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8301358,41.4503694]}},{"type":"Feature","properties":{"resourceCoords":[910.0,290.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8310238,41.4543939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"74.3,1912.0 73.5,1872.0 64.4,1871.9 48.6,1366.2 67.2,1367.0 60.0,826.1 59.6,566.6 53.2,309.9 54.7,46.2 146.6,41.0 384.6,25.5 437.4,25.0 634.5,48.6 755.8,65.3 1002.0,101.5 1337.6,135.8 1334.1,151.1 1321.4,372.7 1317.3,442.7 1342.5,915.6 1508.8,918.3 1534.5,1265.1 1521.0,1335.6 1467.4,1558.7 1413.8,1795.6 1399.8,1856.4 1217.2,1883.6 1194.2,1840.2 1148.4,1873.2 1061.6,1852.1 793.5,1869.2 737.1,1826.0 565.9,1859.8 468.0,1823.3 167.6,1867.5 103.8,1896.7 108.3,1912.0 74.3,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[918.0,878.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82643660554686,41.44889212537328]}},{"type":"Feature","properties":{"resourceCoords":[505.0,35.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8265575089474,41.4523220695935]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p16 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.90"},{"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":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"113.1,1790.5 363.6,1799.5 550.1,1807.3 550.0,1812.0 651.1,1777.3 635.7,1732.4 652.1,1423.0 720.0,1095.1 1426.0,1097.8 1547.3,1049.0 1570.2,462.2 1600.7,445.8 1612.0,415.1 1612.0,377.0 1388.0,293.3 1143.5,206.2 1151.5,156.0 489.1,65.7 95.2,39.8 91.4,54.8 83.5,158.8 74.9,273.5 69.6,342.6 86.0,810.2 116.5,811.3 250.1,815.9 269.3,1159.0 254.6,1228.4 197.7,1447.8 140.4,1680.8 113.1,1790.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,88.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81981758909745,41.44946434220632]}},{"type":"Feature","properties":{"resourceCoords":[128.0,1676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8261465034221,41.44512309667161]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p16 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"confidence","value":"0.91"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2720.0"},{"label":"split_canvas_y","value":"4391.2"},{"label":"split_canvas_w","value":"3732.0"},{"label":"split_canvas_h","value":"3260.8"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"728.5,1181.7 797.1,1302.8 758.9,1333.9 782.6,1457.7 751.1,1477.2 766.2,1658.7 718.8,1813.2 754.7,1861.3 936.2,1880.2 945.9,1898.1 936.5,1904.7 1296.5,1912.0 1588.8,1912.0 1582.7,1907.3 1536.5,1905.3 1424.7,1905.5 1412.4,1894.3 1422.6,1881.1 1531.9,1862.4 1557.4,1772.0 1537.3,1597.1 1570.7,1547.9 1534.8,1491.5 1505.1,1497.9 1451.5,1388.7 1528.3,1277.2 1493.5,1290.2 1443.2,1162.8 1342.6,1202.5 1342.5,1197.7 1153.6,1198.2 900.0,1200.5 910.3,1149.7 728.5,1181.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[827.0,1649.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8277238,41.4433997]}},{"type":"Feature","properties":{"resourceCoords":[1346.0,1423.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8249653,41.4433064]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0017__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p17 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.40"},{"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":"1930.0"},{"label":"split_canvas_h","value":"2498.0"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0017__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"460.2,512.7 449.6,90.7 29.5,52.5 22.4,512.4 460.2,512.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0017__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":[-72.835346360406,41.46489532276515]}},{"type":"Feature","properties":{"resourceCoords":[482.5,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.83514830473379,41.465311694314714]}},{"type":"Feature","properties":{"resourceCoords":[482.5,624.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.83443551293065,41.46511859507997]}},{"type":"Feature","properties":{"resourceCoords":[0.0,624.5],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.83463356860287,41.4647022235304]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.88"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"253.8,1540.2 173.0,1539.1 180.1,1487.7 218.2,1068.3 222.2,180.7 1171.8,163.4 1358.8,160.8 1433.9,1559.3 1484.0,1560.0 1573.1,1742.9 1506.6,1770.7 1515.0,1815.6 1316.4,1859.7 898.2,1835.6 758.3,1874.2 253.8,1540.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1155.0,158.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81715326246832,41.45591435157756]}},{"type":"Feature","properties":{"resourceCoords":[1441.0,1554.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81376647333134,41.455116637730036]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"194.5,1287.4 124.4,479.1 684.2,483.8 1457.7,503.7 1490.8,505.6 1488.2,1452.8 1329.7,1457.0 711.7,1486.4 208.8,1503.1 194.5,1287.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.81980182266844,41.45808575372199]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.81626361878638,41.45666624257536]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.81849417917283,41.45349909075638]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-72.82203238305489,41.45491860190301]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p4 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"6"},{"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":"2986.0"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4666.0"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1580.6,1839.5 1561.7,1623.9 1474.0,816.5 1051.7,813.4 557.7,812.0 181.8,807.6 92.0,816.5 94.3,841.3 173.5,1711.1 179.1,1755.0 218.6,1783.8 278.2,1793.6 312.6,1815.6 497.8,1814.5 660.9,1820.2 1123.1,1829.7 1528.0,1841.0 1580.6,1839.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1474.0,816.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8200876,41.4571831]}},{"type":"Feature","properties":{"resourceCoords":[92.0,816.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8231015,41.4584394]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"683.0,1475.0 682.8,1452.2 274.9,1417.9 208.6,1397.4 125.8,1360.7 162.9,854.2 170.0,673.5 690.8,469.9 690.6,481.9 1510.2,643.3 1510.2,662.8 1509.0,1531.0 1510.5,1575.0 1511.0,1632.7 683.0,1475.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[690.0,1461.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82582038521032,41.45764528230139]}},{"type":"Feature","properties":{"resourceCoords":[1511.0,1667.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82414275675926,41.45666675554923]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"379.0,1540.7 378.8,1559.2 752.1,1560.2 956.2,1709.0 1003.0,1705.8 1042.6,1703.2 1077.6,1700.9 1145.4,1696.3 1195.0,1693.0 1201.5,1692.5 1360.6,1682.2 1404.7,1679.7 1521.0,836.6 1543.9,835.3 1557.4,422.2 1574.7,354.3 1607.5,268.9 870.7,259.6 542.1,265.2 455.6,263.8 145.3,256.6 203.5,901.1 131.9,904.1 118.4,904.8 10.5,910.8 1.0,911.4 1.0,1012.6 381.1,1289.7 379.8,1444.4 379.4,1493.5 379.0,1540.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1526.0,856.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82580198517535,41.457618750953095]}},{"type":"Feature","properties":{"resourceCoords":[478.0,1734.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82502437278006,41.45513753143084]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p7 [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":"3721.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"820.0,1540.2 927.6,1426.9 927.5,1405.5 905.0,1354.3 873.8,951.3 894.8,694.5 873.6,314.6 813.3,105.2 664.4,52.5 465.0,73.0 314.1,123.5 236.9,216.3 220.2,321.8 104.4,380.4 135.7,496.5 68.4,934.8 81.9,1082.2 52.3,1158.0 53.1,1653.0 28.9,1659.4 129.8,1765.8 191.2,1778.0 763.0,1604.2 762.5,1555.2 820.0,1540.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[341.1,1118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82127998868668,41.46561675120695]}},{"type":"Feature","properties":{"resourceCoords":[753.2,1774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82071031704632,41.46274569202993]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p7 [2]","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":"3678.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2773.2"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1483.0,1792.2 1461.6,1730.3 1565.6,1679.2 1564.9,1613.7 1525.0,1622.0 1476.3,1463.0 1566.0,1427.8 1559.1,900.3 1588.5,655.5 1558.8,394.1 1470.5,92.5 1280.5,77.3 1267.2,46.6 1042.3,119.3 1075.6,240.6 1051.2,375.6 1067.8,556.1 1018.1,582.9 1076.4,773.8 1046.8,840.8 1061.6,902.0 1027.8,993.5 981.9,1007.6 971.8,1088.0 973.8,1334.8 1020.2,1537.0 981.6,1587.5 973.5,1725.2 939.1,1727.8 1251.7,1817.0 1249.1,1786.0 1483.0,1792.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0007__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1204.4,829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81210327516617,41.465665062706954]}},{"type":"Feature","properties":{"resourceCoords":[1204.4,1691.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.8133319299877,41.46265681126277]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0008__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p8 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0008__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"879.3,1808.7 925.0,1808.7 1114.2,1829.3 1363.1,1854.4 1575.8,1876.7 1572.7,1445.8 1568.3,1068.8 1566.7,806.8 1571.8,595.8 1573.5,595.5 1575.3,402.2 1582.2,400.1 1583.2,138.8 1612.0,131.3 1612.0,107.8 1529.5,123.5 1360.9,65.4 1105.0,200.6 1043.6,187.4 927.6,308.8 869.3,323.9 869.6,373.6 289.1,548.2 226.8,535.6 124.9,427.4 56.5,445.4 33.4,511.2 22.8,954.0 102.0,1154.5 72.0,1195.5 76.6,1416.6 109.6,1501.8 94.2,1759.4 17.6,1792.8 193.8,1876.3 196.2,1823.2 462.1,1720.8 462.0,1726.9 879.2,1811.4 879.3,1808.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0008__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1337.0,1408.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82024553124678,41.45912220313511]}},{"type":"Feature","properties":{"resourceCoords":[225.0,551.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.82358650752379,41.46366225551395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Wallingford, Connecticut | 1919 | sanborn01190_006 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T21:20:13Z","modified":"2026-10-19T21:20:13Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"731.4,1910.2 342.8,1876.6 61.2,1857.2 49.1,1427.1 37.0,1050.9 29.9,789.4 30.6,578.6 32.2,578.3 30.1,385.4 37.0,383.0 32.5,122.2 61.1,114.2 60.6,90.7 431.7,11.9 749.3,57.8 742.7,27.8 972.5,3.0 987.9,33.3 1411.9,39.0 1473.8,94.8 1562.7,270.7 1592.8,1296.5 1538.5,1710.8 1558.3,1770.3 1462.8,1808.2 1460.5,1833.4 753.8,1817.9 748.0,1912.0 746.6,1912.0 731.4,1910.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd378m:g3784m:g3784wm:g3784wm_g011901919:01190_1919-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[815.0,829.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81458718093367,41.459473380148616]}},{"type":"Feature","properties":{"resourceCoords":[815.0,1236.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-72.81542647819028,41.458105611863154]}}]}}]}