{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01963_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Lake Forest, Illinois | 1904 | mapsnap generated fit (2026-10-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-22"},{"label":"run","value":"corpus-v2.1"},{"label":"pages","value":"24"},{"label":"placed","value":"4"},{"label":"unplaced","value":"20"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"4 sheet(s) cut into 22 panels"},{"label":"unplaced pages","value":"p1 (tier 4, 42.25132,-87.84074 +/-240m); p3__2 (tier 1, 42.24792,-87.83909 +/-141m); p3__3 (tier 1, 42.25081,-87.84080 +/-133m); p3__4 (tier 1, 42.24954,-87.84738 +/-100m); p4__1 (tier 1, 42.24937,-87.84156 +/-114m); p4__2 (tier 1, 42.25204,-87.84213 +/-144m); p4__3 (tier 1, 42.24748,-87.84711 +/-100m); p4__4 (tier 1, 42.25142,-87.84046 +/-149m); p4__5 (tier 1, 42.24868,-87.83460 +/-103m); p4__6 (tier 2, 42.25100,-87.84297 +/-100m); p4__7 (tier 1, 42.25358,-87.84615 +/-100m); p5__1 (tier 1, 42.25843,-87.83516 +/-120m); p5__2 (tier 4, 42.25132,-87.84074 +/-240m); p5__4 (tier 1, 42.24908,-87.84310 +/-100m); p5__5 (tier 4, 42.25132,-87.84074 +/-240m); p5__6 (tier 4, 42.25132,-87.84074 +/-240m); p5__7 (tier 1, 42.26604,-87.82846 +/-103m); p6__1 (tier 4, 42.25132,-87.84074 +/-240m); p6__2 (tier 4, 42.25132,-87.84074 +/-240m); p6__3 (tier 4, 42.25132,-87.84074 +/-240m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Forest, Illinois | 1904 | sanborn01963_001 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.93"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:32:10Z","modified":"2026-10-22T13:32:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1.0,1857.5 1.0,1878.9 381.8,1853.6 880.8,1850.2 1323.2,1842.8 1323.3,1873.2 1447.5,1852.9 1479.7,1880.9 1478.9,1843.0 1540.5,1841.9 1612.0,1841.5 1612.0,1825.2 1535.3,1826.6 1488.7,1764.4 1561.8,1383.5 1554.0,925.8 1479.5,782.9 1539.7,145.0 1493.3,187.6 1364.4,160.3 1346.7,208.9 837.3,213.3 701.3,184.5 612.5,38.6 151.7,60.8 50.5,256.2 57.9,751.3 179.4,919.1 62.3,1260.7 80.2,1847.8 1.0,1857.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1318.0,762.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8402723,42.2533116]}},{"type":"Feature","properties":{"resourceCoords":[613.0,1851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.841429,42.251078]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Forest, Illinois | 1904 | sanborn01963_001 p3 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.88"},{"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":"3418.0"}],"created":"2026-10-22T13:32:10Z","modified":"2026-10-22T13:32:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1569.0,93.6 1569.0,63.0 1124.1,69.3 622.4,71.5 238.4,96.0 238.5,74.5 48.9,97.2 31.0,567.6 85.5,805.1 1520.8,811.6 1580.4,463.1 1553.7,96.1 1569.0,93.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1569.0,791.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8393244,42.2500583]}},{"type":"Feature","properties":{"resourceCoords":[1569.0,63.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8397022,42.2513638]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0004__8/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Forest, Illinois | 1904 | sanborn01963_001 p4 [8]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.65"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"5290.4"},{"label":"split_canvas_y","value":"6351.6"},{"label":"split_canvas_w","value":"1161.6"},{"label":"split_canvas_h","value":"1300.4"}],"created":"2026-10-22T13:32:10Z","modified":"2026-10-22T13:32:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0004__8/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1359.0,1878.0 1416.0,1890.9 1561.0,1878.7 1580.0,1860.5 1581.7,1853.4 1536.6,1820.8 1529.5,1819.2 1371.9,1821.1 1344.1,1844.8 1333.8,1857.4 1359.0,1878.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0004__8/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1322.6,1587.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.84275896660557,42.25137560531655]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1587.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.84205185773995,42.25149375443596]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.84187304459896,42.250907391431134]}},{"type":"Feature","properties":{"resourceCoords":[1322.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-87.84258015346458,42.25078924231172]}},{"type":"Feature","properties":{"resourceCoords":[1576.1,1861.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8419912,42.250985]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0005__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Lake Forest, Illinois | 1904 | sanborn01963_001 p5 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.13"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2612.0"},{"label":"split_canvas_y","value":"3480.8"},{"label":"split_canvas_w","value":"3840.0"},{"label":"split_canvas_h","value":"3047.2"}],"created":"2026-10-22T13:32:10Z","modified":"2026-10-22T13:32:10Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0005__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"653.0,927.0 653.0,939.8 728.0,1007.8 758.8,1176.9 748.4,1371.5 669.5,1437.5 720.4,1611.3 1400.6,1622.7 1517.9,1572.7 1572.3,1430.6 1506.7,1380.0 1574.1,1332.5 1598.3,1169.2 1571.0,1015.1 1346.4,892.1 779.0,890.4 777.7,905.5 710.8,904.5 653.0,904.3 653.0,927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104lm:g019631904:01963_1904-0005__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[825.0,1592.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.8384607,42.2501819]}},{"type":"Feature","properties":{"resourceCoords":[824.0,906.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-87.838879,42.251496]}}]}}]}