{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn02077_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Oswego, Illinois | 1892 | 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":"5"},{"label":"placed","value":"2"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 1, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 41.68318,-88.35235 +/-148m); p1__3 (tier 4, 41.68318,-88.35235 +/-148m); p1__4 (tier 4, 41.68318,-88.35235 +/-148m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oswego, Illinois | 1892 | sanborn02077_002 p1 [1]","metadata":[{"label":"streets","value":"7"},{"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":"2026-10-22T13:31:49Z","modified":"2026-10-22T13:31:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"185.8,1820.5 304.6,1853.5 1001.6,1799.4 1029.5,1460.9 1029.5,1449.0 1030.5,1449.0 1030.8,1444.7 1135.2,1446.2 1160.0,1279.5 1160.0,1235.3 1166.6,1235.2 1253.0,655.4 1112.7,651.4 1117.0,439.5 1117.0,439.2 1117.0,439.2 1245.3,438.0 1469.0,429.8 1543.8,252.3 1468.2,68.7 666.3,26.9 306.5,69.8 137.2,171.0 129.1,294.8 147.2,295.6 153.2,770.0 163.6,1040.7 159.5,1242.8 165.4,1546.2 158.6,1706.5 134.9,1799.1 185.8,1799.5 185.8,1820.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[687.0,1287.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3508853,41.6837945]}},{"type":"Feature","properties":{"resourceCoords":[687.0,1800.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3498092,41.6832755]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oswego, Illinois | 1892 | sanborn02077_002 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T13:31:49Z","modified":"2026-10-22T13:31:49Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,1792.8 1562.9,1779.0 1453.0,1875.4 1391.8,1820.2 1117.4,1807.5 736.6,1802.9 426.6,1881.8 88.8,1823.9 45.0,1568.5 78.3,95.7 542.6,29.5 1156.0,142.3 1522.1,70.4 1556.8,151.2 1567.7,144.7 1559.3,268.4 1577.3,269.2 1582.1,743.2 1591.8,1013.6 1587.2,1215.5 1592.3,1518.8 1585.0,1678.8 1561.2,1771.3 1612.0,1771.8 1612.0,1776.2 1612.0,1792.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104om:g020771892:02077_1892-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1059.0,752.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.35338084912897,41.682650788557744]}},{"type":"Feature","properties":{"resourceCoords":[1059.0,1271.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.35228930630086,41.6821273261676]}}]}}]}