{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01856_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Eureka, Illinois | 1941 | 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":"10"},{"label":"placed","value":"6"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 4, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1 (tier 4, 40.72058,-89.27296 +/-677m); p4__2 (tier 1, 40.73017,-89.27024 +/-118m); p4__3 (tier 1, 40.71663,-89.27827 +/-114m); p6__2 (tier 1, 40.72197,-89.26491 +/-352m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1300.7,117.4 1344.9,117.0 1426.7,116.2 1552.4,1158.3 1553.0,1318.9 1282.7,1784.3 1057.8,1785.1 373.9,1785.5 64.6,1374.1 63.9,687.5 62.6,538.2 214.4,372.1 214.3,336.3 247.2,336.2 442.5,122.5 541.8,121.9 542.6,195.5 1044.0,198.7 1043.3,119.0 1300.7,117.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1046.0,126.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.27291418377858,40.7234245318784]}},{"type":"Feature","properties":{"resourceCoords":[77.0,128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.27525382667308,40.72341123746234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p3","metadata":[{"label":"streets","value":"12"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.5,1222.7 204.8,1223.0 341.3,991.5 341.5,911.3 282.1,390.6 219.2,390.8 90.7,390.8 90.4,251.1 90.1,103.1 334.4,40.7 762.2,96.6 979.4,95.5 1230.0,65.3 1292.6,66.1 1325.3,99.6 1468.8,101.3 1509.7,72.3 1508.9,138.6 1567.7,142.9 1563.8,477.9 1467.8,502.5 1410.5,674.8 1493.8,1408.3 1515.2,1463.8 1552.1,1464.2 1547.2,1872.7 1510.4,1875.9 1510.2,1912.0 1494.7,1912.0 1493.4,1759.9 853.0,1730.8 836.5,1735.3 644.5,1731.2 644.4,1701.6 93.2,1607.6 93.1,1508.1 92.5,1222.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[90.0,59.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2729429,40.7246533]}},{"type":"Feature","properties":{"resourceCoords":[1525.0,527.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2659767,40.7230004]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p4 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"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":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"875.0,58.1 797.0,71.5 358.3,30.6 284.8,62.8 87.2,64.4 156.2,112.7 154.8,248.1 114.2,287.9 108.8,456.2 43.8,740.9 77.7,1004.7 36.2,1136.0 27.9,1593.4 92.5,1718.4 91.4,1828.2 219.8,1800.2 227.8,1727.1 473.2,1704.0 517.0,1719.0 516.0,1810.5 567.0,1840.3 771.8,1849.7 830.0,1886.8 1298.8,1840.3 1392.0,1865.5 1520.8,1672.3 1520.4,1544.8 1519.3,1261.0 1179.9,1259.6 1027.3,1054.8 1028.6,713.9 1028.2,639.9 1104.0,557.7 1104.0,540.0 1120.3,540.0 1217.8,434.4 1267.0,434.3 1267.3,470.9 1516.2,473.6 1516.0,434.0 1515.5,295.1 1514.7,104.2 1394.0,101.2 1276.2,100.4 1275.1,171.8 875.2,81.2 875.0,58.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[793.0,1539.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2763836,40.719337]}},{"type":"Feature","properties":{"resourceCoords":[1516.0,434.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2729207,40.7234374]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"30.3,704.6 39.2,346.5 33.8,345.1 162.0,151.4 161.8,122.7 710.6,213.2 710.8,242.7 901.9,245.7 918.2,241.2 1555.4,266.6 1557.5,417.9 1572.9,417.8 1572.9,418.8 1574.5,1846.2 1431.8,1838.0 1380.3,1863.3 886.3,1834.5 593.1,1876.5 69.6,1876.8 34.5,1649.7 38.6,1572.8 49.7,1558.2 60.5,1583.9 36.3,1360.5 84.6,1258.3 82.2,1080.7 110.5,1080.6 147.2,887.6 137.3,887.5 30.3,704.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1171.0,1042.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.26790350526852,40.7156142388254]}},{"type":"Feature","properties":{"resourceCoords":[471.0,1359.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.27129689520085,40.71442952214127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p6 [1]","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"11"},{"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":"3680.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"396.6,1555.8 398.0,1485.0 515.0,1486.4 634.8,1489.9 634.8,1533.5 876.2,1472.7 870.4,1471.9 871.9,1373.8 846.5,1369.8 883.8,1065.2 871.2,218.4 811.1,104.9 619.7,33.0 208.6,74.0 201.8,277.3 117.6,319.6 65.6,395.1 42.6,1433.9 1.0,1440.8 1.0,1464.1 396.6,1555.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[398.0,1485.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2741036,40.7246583]}},{"type":"Feature","properties":{"resourceCoords":[636.0,603.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2730031,40.7279464]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Eureka, Illinois | 1941 | sanborn01856_006 p6 [3]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.73"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1930.0"},{"label":"split_canvas_y","value":"6194.4"},{"label":"split_canvas_w","value":"4522.0"},{"label":"split_canvas_h","value":"1457.6"}],"created":"2026-10-19T19:52:41Z","modified":"2026-10-19T19:52:41Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1362.1,1550.0 1361.6,1550.0 1355.2,1550.0 1354.9,1579.5 560.3,1578.2 520.3,1593.1 522.0,1822.6 598.6,1822.0 748.6,1904.7 1412.1,1907.0 1412.2,1912.0 1440.4,1912.0 1474.3,1719.3 1464.4,1719.4 1362.1,1550.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104em:g018561941:01856_1941-0006__3/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[482.5,1548.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.27772235554029,40.716818879968926]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1548.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.27220218754327,40.71678744476476]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.27221558343626,40.715438303488064]}},{"type":"Feature","properties":{"resourceCoords":[482.5,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.27773575143328,40.71546973869223]}},{"type":"Feature","properties":{"resourceCoords":[1490.0,1719.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.2728088,40.7161588]}}]}}]}