{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01810_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Crystal Lake, Illinois | 1905 | 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":"11"},{"label":"placed","value":"4"},{"label":"unplaced","value":"7"},{"label":"fit sources","value":"georef-snap 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__1 (tier 4, 42.23801,-88.32721 +/-1043m); p1__2 (tier 4, 42.23801,-88.32721 +/-1043m); p1__3 (tier 4, 42.23801,-88.32721 +/-1043m); p1__5 (tier 4, 42.23801,-88.32721 +/-1043m); p1__6 (tier 4, 42.23801,-88.32721 +/-1043m); p1__7 (tier 4, 42.23801,-88.32721 +/-1043m); p1__8 (tier 4, 42.23801,-88.32721 +/-1043m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1905 | sanborn01810_003 p1 [4]","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":"2749.2"},{"label":"split_canvas_w","value":"3386.0"},{"label":"split_canvas_h","value":"4902.8"}],"created":"2026-10-19T00:41:59Z","modified":"2026-10-19T00:41:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0001__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.1,942.8 49.4,1840.0 469.2,1872.2 799.5,1785.8 822.3,938.1 845.5,919.1 550.1,769.2 550.4,751.9 353.6,832.0 352.4,900.5 198.9,900.5 82.0,942.5 52.1,941.8 52.1,942.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[546.7,713.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.33532486383203,42.2332450909057]}},{"type":"Feature","properties":{"resourceCoords":[546.7,1785.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.33354356867778,42.23176271366621]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1905 | sanborn01810_003 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.84"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:41:59Z","modified":"2026-10-19T00:41:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"44.1,331.6 56.1,199.2 244.8,29.6 1414.1,20.0 1555.5,131.7 1581.9,342.8 1522.3,420.6 1559.8,535.4 1499.2,711.1 1564.0,939.1 1543.0,1493.5 1608.3,1795.3 1224.8,1802.1 898.6,1804.7 646.1,1812.2 76.7,1801.5 59.4,1802.8 44.1,331.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1210.0,1812.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.31803166218256,42.24236705229256]}},{"type":"Feature","properties":{"resourceCoords":[1007.0,207.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.31609674829097,42.24503577704872]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1905 | sanborn01810_003 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.89"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:41:59Z","modified":"2026-10-19T00:41:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1598.2,133.7 1610.7,1421.9 1571.2,1846.4 1518.0,1882.6 1424.4,1834.0 1006.8,1893.5 566.1,1830.3 210.0,1891.2 29.1,1841.5 47.9,36.0 65.1,35.0 629.5,57.3 880.0,55.0 1203.5,59.2 1583.9,60.4 1598.2,133.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[76.0,1593.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.32256416379212,42.241170172938936]}},{"type":"Feature","properties":{"resourceCoords":[-175.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.32089358464795,42.24382909742682]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Crystal Lake, Illinois | 1905 | sanborn01810_003 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T00:41:59Z","modified":"2026-10-19T00:41:59Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"826.2,1715.5 637.4,1798.1 638.0,1864.4 489.6,1868.2 377.2,1912.0 366.9,1912.0 348.3,1912.0 347.7,1887.0 90.2,1863.7 56.1,1816.5 49.0,73.3 200.2,25.5 1508.4,30.1 1570.3,110.0 1572.1,1848.5 1147.1,1884.5 826.5,1732.2 826.2,1715.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g018101905:01810_1905-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[825.0,495.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.33728743875946,42.23497652089211]}},{"type":"Feature","properties":{"resourceCoords":[825.0,1675.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.33532362782864,42.23325376233334]}}]}}]}