{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01924_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Highland, Illinois | 1909 | 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":"17"},{"label":"placed","value":"4"},{"label":"unplaced","value":"13"},{"label":"fit sources","value":"georef-snap 4"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"3 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p10__1 (tier 1, 38.73908,-89.68491 +/-220m); p10__2 (tier 1, 38.73968,-89.68006 +/-227m); p1__1 (tier 4, 38.73917,-89.67647 +/-395m); p1__2 (tier 4, 38.73917,-89.67647 +/-395m); p1__3 (tier 4, 38.73917,-89.67647 +/-395m); p1__4 (tier 4, 38.73917,-89.67647 +/-395m); p2__1 (tier 1, 38.73525,-89.67317 +/-118m); p2__2 (tier 1, 38.74008,-89.68345 +/-268m); p2__3 (tier 1, 38.73724,-89.68300 +/-100m); p3 (tier 1, 38.74012,-89.68094 +/-269m); p6 (tier 1, 38.73990,-89.68093 +/-262m); p8__1 (tier 1, 38.73855,-89.68468 +/-125m); p8__2 (tier 1, 38.73671,-89.67971 +/-275m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Highland, Illinois | 1909 | sanborn01924_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.68"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T12:52:04Z","modified":"2026-10-22T12:52:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1076.2,607.6 1076.9,757.8 987.8,758.1 855.6,238.1 797.1,238.4 835.6,758.6 887.5,758.4 669.2,1303.0 550.0,1303.2 550.5,1376.2 46.5,1856.5 32.4,1856.5 32.0,1802.1 33.9,1802.0 47.0,81.5 75.6,115.0 103.7,103.2 629.2,93.0 749.5,157.4 1026.5,159.6 1119.5,68.6 1325.5,56.1 1551.5,227.1 1552.9,289.2 1076.2,607.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67656959219913,38.74192789759131]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67264153979775,38.7419514979518]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67260590875313,38.73829194058238]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.6765339611545,38.738268340221886]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Highland, Illinois | 1909 | sanborn01924_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.60"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T12:52:04Z","modified":"2026-10-22T12:52:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"56.0,97.7 615.9,141.8 1557.8,106.0 1612.0,798.7 1612.0,799.4 1560.5,1832.8 87.7,1817.8 52.6,1760.2 56.0,97.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.68290448763629,38.741672342643795]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67902246863434,38.741718182028045]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67895325925436,38.73810164697547]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.6828352782563,38.73805580759122]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Highland, Illinois | 1909 | sanborn01924_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T12:52:04Z","modified":"2026-10-22T12:52:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"981.2,668.7 1071.3,668.9 1071.2,516.9 1554.8,196.8 1584.8,1753.8 1562.0,1853.4 1066.2,1827.6 1066.1,1774.2 584.5,1776.4 537.6,1778.5 24.2,1776.0 536.1,1292.2 535.9,1218.4 656.5,1218.7 879.6,668.7 827.2,668.6 790.4,142.2 849.6,142.2 981.2,668.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67653069155284,38.741734710629316]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67264804812915,38.74177079939603]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67259356027397,38.738153695024245]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.67647620369766,38.73811760625753]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Highland, Illinois | 1909 | sanborn01924_004 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-22T12:52:04Z","modified":"2026-10-22T12:52:04Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"551.5,80.5 1075.0,85.2 1121.6,83.3 1599.4,83.0 1599.2,136.4 1564.0,134.4 1579.4,1845.6 1258.0,1883.2 1031.0,1815.4 495.1,1885.3 32.3,1849.3 31.7,102.8 75.5,39.3 551.5,25.6 551.5,80.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104hm:g019241909:01924_1909-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1073.0,1849.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.67512240396363,38.735046364568674]}},{"type":"Feature","properties":{"resourceCoords":[1576.0,2074.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.673893469159,38.734635826790495]}}]}}]}