{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01831_007.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Dundee, Illinois | 1940 | 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":"16"},{"label":"placed","value":"10"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 7, georef-snap 3"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"5 sheet(s) cut into 13 panels"},{"label":"unplaced pages","value":"p4__2 (tier 1, 42.10848,-88.29285 +/-189m); p4__3 (tier 2, 42.09758,-88.28225 +/-980m); p5__2 (tier 1, 42.10364,-88.27453 +/-161m); p6__2 (tier 1, 42.09810,-88.27677 +/-167m); p6__3 (tier 1, 42.09756,-88.27508 +/-142m); p9__2 (tier 2, 42.10510,-88.28563 +/-638m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p2 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"20"},{"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":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"582.7,1814.5 1116.5,1812.5 1129.2,1778.9 1493.5,1912.0 1592.0,1912.0 1592.0,1891.0 1612.0,1890.0 1612.0,1476.2 1545.2,700.0 1514.0,704.8 1348.5,425.4 1334.8,425.6 1310.9,425.7 1085.7,427.1 1083.3,1.0 625.8,1.0 573.3,76.0 581.4,187.2 89.0,179.0 49.5,175.0 47.6,723.4 48.0,1273.7 45.7,1813.8 582.7,1814.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[583.0,1279.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2785877,42.097095]}},{"type":"Feature","properties":{"resourceCoords":[1116.0,1279.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2772616,42.0971006]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p2 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.08"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4333.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"2118.8"},{"label":"split_canvas_h","value":"1708.4"}],"created":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1142.3,404.4 1596.0,401.1 1586.1,298.8 1612.0,259.8 1612.0,105.5 1298.5,1.0 1108.7,1.0 1099.2,1.1 1097.4,18.8 1105.8,401.6 1142.3,404.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1596.0,401.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2786072,42.0991106]}},{"type":"Feature","properties":{"resourceCoords":[1104.3,-16.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2799143,42.0999634]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"462.7,194.8 728.9,196.1 729.3,71.2 827.8,27.9 825.9,33.4 906.3,36.4 1263.4,398.9 1264.0,335.6 1270.5,324.4 1612.0,477.6 1612.0,517.5 1531.0,516.3 1529.8,525.9 1529.8,733.4 1529.3,1007.5 1530.0,1282.5 1529.3,1552.4 1529.0,1820.4 1445.7,1820.2 1288.2,1882.8 581.2,1876.6 457.1,1846.9 55.3,1870.9 29.9,1845.2 60.1,1582.4 64.0,607.4 28.7,278.6 65.7,194.4 462.7,194.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[459.0,1010.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.28525602762454,42.09809000513978]}},{"type":"Feature","properties":{"resourceCoords":[102.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.28701758023169,42.09514071319628]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p4 [1]","metadata":[{"label":"streets","value":"10"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.91"},{"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":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"8.6,448.9 50.3,449.1 79.0,789.6 49.2,1038.4 69.8,1821.6 293.0,1873.3 1043.3,1867.3 1069.0,1823.5 1054.7,1688.0 1099.0,1334.5 1140.5,1334.5 1163.5,1334.5 1399.4,1326.3 1487.3,1253.2 1542.7,1015.5 1540.3,743.6 1472.2,758.5 1440.0,734.0 1320.6,737.1 1318.0,734.0 1223.6,734.0 993.7,734.0 993.7,403.2 993.7,170.3 792.2,97.6 785.9,114.5 518.5,116.5 249.5,117.2 249.7,385.8 166.2,385.8 8.6,448.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1115.0,1083.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2756093,42.0925479]}},{"type":"Feature","properties":{"resourceCoords":[1115.0,849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2756114,42.0934104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p5 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"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":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1551.1 1584.2,1547.0 1574.6,1164.8 1525.4,1086.5 1590.7,833.1 1553.8,407.4 951.0,403.9 894.3,130.2 622.4,15.9 488.2,27.6 42.2,529.2 41.3,755.9 33.4,993.8 30.6,1253.6 19.7,1750.3 312.4,1763.7 492.1,1776.2 995.4,1797.6 995.1,1812.2 1612.0,1636.2 1612.0,1562.6 1612.0,1551.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[739.0,1299.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2743587,42.1010066]}},{"type":"Feature","properties":{"resourceCoords":[42.0,342.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2765926,42.102451]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p6 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.85"},{"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":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1158.0 1.0,1827.3 57.5,1838.8 150.8,1857.8 152.8,1861.4 268.5,1878.8 297.7,1912.0 368.9,1912.0 382.8,1840.5 416.9,1839.9 415.3,1866.0 558.0,1868.9 740.1,1845.9 788.9,1810.6 807.4,1150.4 837.5,1098.3 837.5,1092.4 840.9,1092.4 842.5,1089.7 1036.8,1080.5 1121.1,1037.5 1134.3,991.1 1103.1,867.8 1006.9,821.6 979.1,736.7 1010.8,563.9 1013.5,236.5 1117.8,236.5 1388.2,232.1 1497.3,160.2 1505.5,120.3 1041.6,61.8 1042.5,105.0 730.8,201.4 730.7,194.0 474.5,188.8 382.9,184.5 233.9,180.9 56.2,180.8 71.7,207.3 1.0,230.2 1.0,471.9 55.6,627.5 71.7,628.1 27.4,1025.7 1.0,1158.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[430.0,1169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2739402545999,42.09650320498918]}},{"type":"Feature","properties":{"resourceCoords":[728.0,1169.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.27250426973373,42.09672188267269]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p7","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"24"},{"label":"confidence","value":"0.18"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"37.6,1315.9 45.0,1155.0 91.0,1077.4 32.2,705.5 67.4,531.9 51.4,395.8 101.0,301.9 98.7,81.1 326.1,30.4 1470.8,29.8 1504.6,89.1 1494.1,422.7 1570.9,581.2 1578.1,834.0 1612.0,822.0 1612.0,825.5 1612.0,833.8 1450.1,1149.6 1481.0,1271.0 1509.7,1399.4 1544.1,1538.8 1607.0,1806.1 1419.2,1850.1 1442.0,1874.4 1379.8,1912.0 1016.3,1912.0 1016.0,1879.9 798.9,1810.1 796.7,1775.2 416.0,1619.2 409.3,1631.7 410.9,1701.3 5.5,1315.8 37.6,1315.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[993.0,1133.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2785548,42.1022119]}},{"type":"Feature","properties":{"resourceCoords":[1481.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2763636,42.1017015]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"338.7,1706.0 319.9,1713.2 269.1,1732.5 55.9,1335.5 10.8,1276.4 44.0,1255.3 50.7,225.8 101.0,83.7 365.0,39.6 868.7,15.3 1240.8,24.1 1530.7,84.7 1526.6,345.4 1559.0,353.9 1544.8,452.6 1569.8,459.9 1588.5,951.8 1612.0,970.1 1582.7,992.0 1567.3,1150.3 1571.0,1849.0 1287.2,1875.3 955.4,1846.1 958.9,1872.2 637.9,1788.8 569.8,1781.0 555.6,1772.1 541.1,1748.2 499.8,1643.7 361.0,1697.6 338.7,1706.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1284.0,700.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.28483590983383,42.11290837493765]}},{"type":"Feature","properties":{"resourceCoords":[1557.0,981.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.28330880861313,42.11203546681796]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p9 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.22"},{"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":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"944.2,51.4 753.9,90.2 591.9,70.1 565.3,51.2 409.6,34.6 108.6,56.8 83.3,79.9 51.4,181.7 76.2,352.2 23.7,772.5 53.0,838.3 42.5,1731.4 70.5,1829.5 235.7,1814.2 610.8,1866.2 748.0,1827.1 811.6,1247.4 811.7,1236.0 817.9,1236.0 1539.4,1183.0 1600.9,923.8 1337.4,736.3 1278.0,705.4 1268.2,692.4 1263.3,665.6 1262.0,556.0 1116.8,556.9 1074.0,556.8 1021.0,556.8 964.7,120.9 944.2,51.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1262.0,556.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2879922,42.10909]}},{"type":"Feature","properties":{"resourceCoords":[127.0,281.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2936717,42.1079234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Dundee, Illinois | 1940 | sanborn01831_007 p9 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.77"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3228.8"},{"label":"split_canvas_y","value":"4944.0"},{"label":"split_canvas_w","value":"3223.2"},{"label":"split_canvas_h","value":"2708.0"}],"created":"2026-10-19T08:52:26Z","modified":"2026-10-19T08:52:26Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"810.7,1823.6 1210.5,1820.2 1478.6,1819.0 1477.8,1693.2 1576.6,1648.5 1592.8,1598.8 1558.8,1422.4 1477.0,1268.3 1252.5,1251.2 1142.3,1281.2 1109.1,1248.3 899.4,1245.8 851.8,1275.5 827.8,1606.7 857.8,1713.2 810.7,1823.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104dm:g018311940:01831_1940-0009__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1000.1,1561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2862866,42.1020559]}},{"type":"Feature","properties":{"resourceCoords":[1000.1,1822.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.2862937,42.1010989]}}]}}]}