{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01860_006.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Fairfield, Illinois | 1923 | mapsnap generated fit (2026-10-20)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-20"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"10"},{"label":"placed","value":"8"},{"label":"unplaced","value":"2"},{"label":"fit sources","value":"georef 6, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 38.38061,-88.36914 +/-133m); p1__3 (tier 1, 38.37421,-88.35980 +/-127m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p2","metadata":[{"label":"streets","value":"9"},{"label":"intersections","value":"19"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1354.2,1812.5 780.3,1891.3 39.5,1857.7 16.8,490.0 121.7,338.2 90.5,157.1 656.5,33.0 1404.8,43.9 1556.5,141.3 1580.0,139.3 1527.5,1158.4 1504.2,1157.8 1502.8,1814.9 1354.2,1812.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1042.0,676.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.365841,38.3820712]}},{"type":"Feature","properties":{"resourceCoords":[1278.0,122.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3645825,38.3816444]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p3","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.99"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1452.4,639.0 1459.4,1538.0 1466.4,1795.9 949.3,1798.3 705.0,1797.2 68.0,1785.7 70.7,1140.9 93.5,1141.5 147.0,141.6 836.9,83.3 837.1,128.3 962.0,128.0 1189.0,118.4 1456.0,119.6 1452.4,639.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[962.0,128.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.364601,38.379623]}},{"type":"Feature","properties":{"resourceCoords":[68.0,1786.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.368441,38.3812601]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p4","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1542.0,70.8 1585.9,145.2 1596.2,1700.2 1551.0,1796.1 1321.6,1786.9 1323.9,1811.8 722.2,1776.8 722.4,1761.9 87.0,1744.0 82.9,1486.4 86.0,588.8 95.5,70.2 420.8,71.6 741.4,76.0 1385.7,79.5 1385.9,63.0 1542.0,70.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1379.0,600.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.365794,38.3763785]}},{"type":"Feature","properties":{"resourceCoords":[87.0,1744.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3684757,38.3787164]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p5 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.89"},{"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":"1642.4"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"391.6,117.0 176.9,93.9 90.3,160.4 40.9,1655.3 87.0,1873.5 353.4,1844.0 377.0,1251.1 391.6,1251.0 397.7,625.2 391.6,117.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[391.6,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.368506,38.3775585]}},{"type":"Feature","properties":{"resourceCoords":[391.6,117.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.368477,38.379657]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p5 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"1642.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4809.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"446.9,1859.7 1539.2,1868.9 1542.0,1251.0 1537.3,610.9 1530.4,610.9 1551.9,126.6 1578.2,126.2 1404.4,21.7 470.8,20.6 469.2,1.0 424.8,1.0 424.6,122.9 433.0,346.4 430.6,609.0 431.3,929.7 429.0,1245.7 429.9,1880.7 446.0,1880.8 446.9,1859.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0005__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1542.0,1251.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3619619,38.3775399]}},{"type":"Feature","properties":{"resourceCoords":[430.6,609.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3645856,38.3787244]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"119.1,1221.3 119.3,569.8 112.3,569.8 138.0,77.0 164.8,76.9 173.3,82.2 929.1,60.6 929.5,86.5 1024.7,87.8 1019.8,545.3 1142.6,540.0 1458.1,540.5 1461.5,777.1 1456.4,1013.3 1450.6,1885.8 1420.6,1885.5 1420.2,1875.7 1026.7,1864.8 111.3,1850.1 119.1,1221.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0006/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1018.0,1238.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.35987904995535,38.37752391274111]}},{"type":"Feature","properties":{"resourceCoords":[1018.0,100.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3599022408161,38.37959075504751]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1019.0,1912.0 1045.0,1912.0 1044.1,1815.5 1504.6,1809.4 1496.2,1685.1 1489.1,1365.4 1486.4,921.9 1485.5,477.6 1486.5,1.0 1461.0,1.0 1452.6,37.2 152.2,72.0 103.2,291.1 52.0,359.6 27.1,691.3 28.5,1278.5 126.3,1811.5 1017.0,1873.3 1019.0,1912.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.35570120201922,38.381447239648196]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.35575717702584,38.37853679118651]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.36012959095224,38.37858919875411]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-88.36007361594562,38.3814996472158]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Fairfield, Illinois | 1923 | sanborn01860_006 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-20T01:18:53Z","modified":"2026-10-20T01:18:53Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"90.0,1446.0 93.3,570.0 97.8,332.8 93.7,95.2 533.0,101.8 973.2,110.3 1446.2,121.3 1446.7,96.1 1559.0,124.9 1580.8,214.5 1577.9,706.7 1525.5,743.7 1592.0,841.0 1594.6,1654.0 1519.3,1772.9 877.4,1866.0 132.0,1787.0 72.5,1764.2 59.9,1445.8 90.0,1446.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104fm:g018601923:01860_1923-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1416.0,1446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3558042,38.3763687]}},{"type":"Feature","properties":{"resourceCoords":[90.0,1446.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.3588636,38.3763544]}}]}}]}