{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01962_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lake Bluff, Illinois | 1944 | 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":"8"},{"label":"placed","value":"5"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef-snap 3, georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 6 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 42.37346,-87.84143 +/-302m); p4__2 (tier 1, 42.28302,-87.83676 +/-135m); p4__3 (tier 1, 42.28289,-87.84510 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Bluff, Illinois | 1944 | sanborn01962_003 p1 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.59"},{"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":"3321.2"},{"label":"split_canvas_h","value":"5270.0"}],"created":"2026-10-19T01:24:01Z","modified":"2026-10-19T01:24:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"789.2,53.5 755.2,40.8 357.3,28.0 169.7,41.7 133.4,82.7 81.9,83.4 52.9,117.0 63.8,363.4 25.9,547.9 97.8,944.2 53.7,1209.8 61.2,1217.0 65.7,1275.8 128.5,1293.4 412.0,1285.7 422.6,1256.1 611.1,1304.9 761.9,1295.4 762.9,1316.5 797.9,1316.5 795.3,1005.6 792.3,525.3 789.2,53.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[795.3,1005.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.846012,42.279695]}},{"type":"Feature","properties":{"resourceCoords":[77.0,1028.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.84957,42.279648]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Bluff, Illinois | 1944 | sanborn01962_003 p1 [3]","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":"5270.0"},{"label":"split_canvas_w","value":"4044.0"},{"label":"split_canvas_h","value":"2382.0"}],"created":"2026-10-19T01:24:01Z","modified":"2026-10-19T01:24:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1003.6,1817.6 992.8,1814.4 976.0,1352.5 498.6,1346.4 384.9,1376.2 366.0,1353.3 115.9,1355.9 63.7,1335.2 57.7,1820.6 72.3,1820.8 81.9,1820.9 610.3,1899.0 841.4,1828.0 921.0,1815.8 1003.6,1817.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[456.0,1823.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.84407625850612,42.28145411021211]}},{"type":"Feature","properties":{"resourceCoords":[82.0,1823.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.84587597514563,42.281447752252696]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Bluff, Illinois | 1944 | sanborn01962_003 p2","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:24:01Z","modified":"2026-10-19T01:24:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"168.9,94.2 187.4,94.1 1371.7,250.7 1396.0,568.5 1383.5,568.5 1218.0,1059.9 1222.2,1607.1 1372.9,1606.5 1093.5,1912.0 1057.7,1912.0 1053.8,1870.5 512.5,1802.2 83.8,1873.5 75.8,1686.4 146.1,1686.7 143.0,1061.0 140.4,94.4 168.9,94.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1218.0,1061.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.843365,42.279674]}},{"type":"Feature","properties":{"resourceCoords":[143.0,1061.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.846012,42.279695]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Bluff, Illinois | 1944 | sanborn01962_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T01:24:01Z","modified":"2026-10-19T01:24:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"143.5,121.1 368.0,50.0 445.4,37.4 525.9,38.5 603.9,61.0 807.0,89.7 1043.1,85.1 1175.8,51.4 1566.2,72.0 1564.4,298.5 1561.6,321.3 1559.9,335.1 1524.0,413.5 1499.5,453.8 1418.9,571.7 1398.8,639.4 1395.8,676.5 1396.6,834.0 1396.1,1062.8 1378.8,1062.7 1405.6,1563.5 1406.8,1563.5 1383.3,1852.5 1075.6,1870.8 75.6,1856.0 31.0,1764.0 88.4,1335.8 55.6,958.6 73.4,958.3 213.7,807.0 138.6,806.8 138.4,534.1 222.6,289.9 228.8,289.9 217.8,131.4 143.5,121.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[559.0,1561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.84130562388957,42.27591575032063]}},{"type":"Feature","properties":{"resourceCoords":[887.0,1561.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.83968483542122,42.275911253621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Bluff, Illinois | 1944 | sanborn01962_003 p4 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"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":"2026-10-19T01:24:01Z","modified":"2026-10-19T01:24:01Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"271.2,312.7 269.3,326.6 232.4,405.3 207.3,445.7 125.2,563.8 104.3,631.8 101.0,669.2 100.4,828.0 97.9,1058.4 80.5,1058.2 103.1,1563.1 104.4,1563.1 78.2,1854.2 303.5,1842.8 402.5,1298.7 402.5,1294.1 402.5,1285.0 618.4,1452.2 626.0,1458.1 677.0,1495.0 743.9,1514.0 1048.7,1530.3 1048.8,1530.5 1049.5,1530.5 1049.5,1531.9 1085.5,1601.2 1215.5,1639.0 1423.7,1651.2 1550.2,1618.3 1557.1,971.4 1484.6,588.0 1500.7,327.9 1441.4,294.1 1442.2,119.3 792.0,30.7 412.6,69.7 278.0,61.5 274.2,289.8 271.2,312.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019621944:01962_1944-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[894.0,555.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.83326836777005,42.279566575174314]}},{"type":"Feature","properties":{"resourceCoords":[399.0,1064.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8356835021938,42.27771112620151]}}]}}]}