{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn01760_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Cairo, Illinois | 1901 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"38"},{"label":"placed","value":"18"},{"label":"unplaced","value":"20"},{"label":"fit sources","value":"georef-snap 9, georef 8, snap:0 1"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"9 sheet(s) cut into 24 panels"},{"label":"unplaced pages","value":"p17__1 (tier 1, 37.00806,-89.17333 +/-128m); p17__3 (tier 1, 37.00755,-89.17397 +/-132m); p18__1 (tier 1, 37.01173,-89.18795 +/-100m); p18__2 (tier 1, 36.99707,-89.17145 +/-141m); p18__3 (tier 1, 36.99721,-89.17418 +/-161m); p18__4 (tier 1, 37.01195,-89.18902 +/-179m); p19__1 (tier 4, 37.00478,-89.17319 +/-1391m); p19__2 (tier 4, 37.00478,-89.17319 +/-1391m); p1__2 (tier 2, 37.00148,-89.16558 +/-100m); p20 (tier 4, 37.00478,-89.17319 +/-1391m); p21__1 (tier 4, 37.00478,-89.17319 +/-1391m); p21__2 (tier 4, 37.00478,-89.17319 +/-1391m); p22__2 (tier 1, 37.00593,-89.18259 +/-100m); p22__3 (tier 1, 37.00610,-89.18136 +/-100m); p22__4 (tier 1, 37.00653,-89.18194 +/-100m); p23__1 (tier 1, 37.01700,-89.18391 +/-124m); p23__2 (tier 2, 37.01655,-89.18002 +/-100m); p23__3 (tier 1, 37.01631,-89.18353 +/-106m); p3__2 (tier 1, 36.99544,-89.16697 +/-100m); p4__1 (tier 1, 37.00478,-89.18212 +/-102m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0010/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p10","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"7"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0010/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"80.2,959.0 -0.0,959.2 -0.0,0.0 1613.0,-0.0 1613.0,217.9 1492.3,219.2 1493.7,338.4 1561.8,345.9 1590.1,1788.5 88.2,1817.7 80.2,959.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0010/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[464.0,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1717975,37.0034057]}},{"type":"Feature","properties":{"resourceCoords":[88.0,1806.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1724033,37.0039142]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p11","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1500.6,1913.0 -0.0,1913.0 -0.0,1563.2 61.7,1562.8 62.1,127.9 781.6,123.7 789.9,-0.0 1172.0,36.0 1194.8,126.8 1566.4,124.5 1580.3,1830.4 1500.5,1830.0 1500.6,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0011/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17021606248159,37.00176117595542]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16725044614135,36.999964157468604]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16990033464707,36.997135364819265]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.1728659509873,36.998932383306084]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p12","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"14"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1217.7,1581.9 836.6,1603.2 846.7,1726.5 83.2,1844.7 68.7,128.7 -0.0,120.3 -0.0,0.0 1613.0,-0.0 1613.0,1611.7 1254.2,1668.2 1217.7,1581.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[835.0,730.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1673159,37.0020085]}},{"type":"Feature","properties":{"resourceCoords":[835.0,1583.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1687311,37.000908]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0013/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p13","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"10"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0013/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1792.0 79.0,1793.0 67.7,102.0 1573.0,104.9 1579.5,566.3 1613.0,571.4 1613.0,1913.0 -0.0,1913.0 -0.0,1792.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0013/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1196.0,104.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1654013,36.9985723]}},{"type":"Feature","properties":{"resourceCoords":[79.0,1793.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1698459,36.9972939]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p14","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1213.0,1663.3 95.0,1840.9 67.5,368.9 96.7,238.4 -0.0,238.6 -0.0,-0.0 1613.0,-0.0 1613.0,368.0 1568.0,368.3 1573.3,971.4 1195.1,973.3 1213.0,1663.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0014/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16460918483189,37.002359350877214]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16199389835525,37.00020765568809]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16516681864255,36.99771304912438]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16778210511919,36.999864744313506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"175.1,1913.0 102.3,1456.8 94.2,220.6 139.2,220.6 141.1,-0.0 1613.0,-0.0 1613.0,1913.0 175.1,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0015/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16246900093174,37.00020200432551]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.15983166264564,36.99806848307499]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16297769439952,36.99555277110682]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16561503268561,36.99768629235734]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0016/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p16","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"12"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0016/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,0.0 1613.0,-0.0 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0016/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[846.0,1807.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.181703,37.0138614]}},{"type":"Feature","properties":{"resourceCoords":[474.0,127.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1784652,37.0157973]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0017__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p17 [2]","metadata":[{"label":"streets","value":"1"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"3027.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3424.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0017__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0017","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1022.8,835.5 1019.9,1913.0 1613.0,1913.0 1613.0,0.0 756.8,0.0 780.7,835.2 1022.8,835.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0017__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[756.8,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18004696990958,37.01793522325828]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17819713065789,37.01860553142046]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17631966962941,37.01531469827004]}},{"type":"Feature","properties":{"resourceCoords":[756.8,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.1781695088811,37.014644390107854]}},{"type":"Feature","properties":{"resourceCoords":[895.7,1306.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1784652,37.0157973]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"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":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"452.4,1109.0 303.9,1406.4 557.3,1529.0 836.9,935.1 594.7,817.5 740.0,520.5 190.8,270.6 92.2,585.8 0.0,903.5 452.4,1109.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[740.0,521.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1642858,36.999496]}},{"type":"Feature","properties":{"resourceCoords":[-822.0,-20.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1670316,36.9967472]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 0.0,0.0 1613.0,0.0 1600.6,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18240055343445,37.01139207318577]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17892938153409,37.01269691990132]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17700497374243,37.00938637321482]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18047614564279,37.00808152649926]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0022__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p22 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1859.6"},{"label":"split_canvas_h","value":"2488.4"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0022__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0022","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"464.0,80.8 463.9,0.0 60.1,-0.0 94.9,99.9 34.8,103.5 64.2,621.3 442.5,616.5 414.6,84.5 464.0,80.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0022__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18132262154198,37.00620716825694]}},{"type":"Feature","properties":{"resourceCoords":[464.9,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18092744059678,37.00539439951909]}},{"type":"Feature","properties":{"resourceCoords":[464.9,622.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18227931741316,37.00496929009811]}},{"type":"Feature","properties":{"resourceCoords":[0.0,622.1],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18267449835838,37.005782058835955]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p3 [1]","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"10"},{"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":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.0,1913.0 958.0,1913.0 1145.3,1913.0 1272.0,1913.0 1613.0,1913.0 1613.0,0.0 1244.6,0.0 1244.9,381.6 1128.6,380.7 981.7,379.5 977.1,0.0 768.0,0.0 46.1,0.0 60.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[60.0,1153.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1777628,37.0106809]}},{"type":"Feature","properties":{"resourceCoords":[60.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1788334,37.0125912]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p4 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"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":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,1269.0 0.0,1302.8 445.5,1306.2 445.8,1448.1 764.6,1497.3 765.4,1913.0 802.0,1913.0 1333.0,1913.0 1486.2,1913.0 1452.5,1854.5 1566.0,1850.0 1482.8,1619.1 1473.9,1156.6 1613.0,1075.7 1613.0,0.0 649.0,0.0 460.0,0.0 0.0,0.0 0.0,1269.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1566.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1797037,37.0032337]}},{"type":"Feature","properties":{"resourceCoords":[733.0,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-89.1816831,37.0025707]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p5","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"772.3,1801.8 505.1,1754.0 58.0,1507.0 58.5,1329.1 -0.0,1295.2 -0.0,0.0 491.1,-0.0 740.7,136.4 868.3,143.8 886.7,40.0 1027.5,75.3 1011.2,140.5 1428.1,109.4 1491.0,-0.0 1475.3,109.0 1562.6,108.9 1564.8,1258.8 1613.0,1258.5 1613.0,1913.0 713.0,1913.0 772.3,1801.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0005/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17861302334275,37.00678494624787]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.1756270980053,37.00497045486489]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.1783029306948,37.00212248031262]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.18128885603225,37.0039369716956]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0006/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p6","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0006/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1138.0,1858.2 1022.4,1913.0 -0.0,1913.0 -0.0,0.0 1026.5,-0.0 1048.2,60.3 1106.4,46.0 1613.0,1443.3 1613.0,1559.4 1261.8,1786.8 1244.9,1721.7 1104.3,1758.3 1138.0,1858.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0006/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17436304793941,37.00895307128391]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17282571650496,37.00621083261476]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17686982328243,37.004744571390844]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17840715471688,37.007486810059994]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"100.2,769.2 13.4,768.7 23.8,660.4 121.5,56.8 1596.0,288.4 1540.2,773.4 1588.4,773.4 1602.2,1622.3 1540.5,1622.3 1540.7,1913.0 93.6,1913.0 100.2,769.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17498930741583,37.00613522387286]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17197011239826,37.0043293214518]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17463325324721,37.00144958651346]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17765244826478,37.00325548893452]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p8","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1568.0,1776.7 61.6,1785.8 59.7,919.5 -0.0,913.1 -0.0,-0.0 1501.5,-0.0 1490.0,922.9 1570.8,923.0 1568.0,1776.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0008/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17197527399662,37.00830589497997]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16938098821228,37.0061521753785]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17255714389995,37.00367779536251]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17515142968429,37.00583151496398]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Cairo, Illinois | 1901 | sanborn01760_004 p9","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T06:43:27Z","modified":"2026-09-23T06:43:27Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1560.3,1913.0 -0.0,1913.0 -0.0,1336.4 62.3,1336.4 48.7,478.4 -0.0,478.4 54.8,-0.0 1554.0,223.8 1514.6,480.6 1570.2,482.0 1560.3,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017601901:01760_1901-0009/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17252435150935,37.0039595473375]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.16953599712554,37.002173584836996]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17216965799705,36.999323184976305]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-89.17515801238086,37.00110914747681]}}]}}]}