{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01772_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Carthage, Illinois | 1906 | mapsnap generated fit (2026-10-18)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-18"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"9"},{"label":"placed","value":"4"},{"label":"unplaced","value":"5"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 8 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 40.41377,-91.13677 +/-354m); p1__3 (tier 4, 40.41377,-91.13677 +/-354m); p1__4 (tier 4, 40.41377,-91.13677 +/-354m); p3__2 (tier 1, 40.41533,-91.13947 +/-158m); p4__2 (tier 1, 40.40666,-91.13453 +/-116m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carthage, Illinois | 1906 | sanborn01772_004 p1 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.65"},{"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":"1973.2"},{"label":"split_canvas_h","value":"3374.0"}],"created":"2026-10-18T23:56:33Z","modified":"2026-10-18T23:56:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"150.4,828.8 150.0,773.7 297.3,777.4 413.2,773.6 418.2,639.0 478.6,638.5 448.9,58.3 323.8,9.0 24.2,35.5 21.4,810.2 150.4,828.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[413.2,773.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.139702,40.4150398]}},{"type":"Feature","properties":{"resourceCoords":[413.2,92.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1396768,40.416298]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carthage, Illinois | 1906 | sanborn01772_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-18T23:56:33Z","modified":"2026-10-18T23:56:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"50.8,183.7 49.0,1759.1 97.1,1772.5 90.9,1861.5 365.1,1893.7 1543.2,1884.8 1565.7,1875.2 1584.9,1897.3 1583.9,1829.7 1571.5,1846.5 1565.9,1503.2 1570.2,1147.2 1566.0,797.9 1563.7,740.0 1567.2,300.8 1570.9,129.2 1221.0,37.9 309.9,31.1 308.6,1.0 252.0,1.0 246.5,126.1 137.9,128.8 1.0,124.4 1.0,176.2 50.8,183.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[260.0,1502.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.13969404844029,40.412329793994004]}},{"type":"Feature","properties":{"resourceCoords":[892.0,116.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.13803205364884,40.415050033130136]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carthage, Illinois | 1906 | sanborn01772_004 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.77"},{"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":"2026-10-18T23:56:33Z","modified":"2026-10-18T23:56:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"75.3,1809.0 773.5,1746.5 774.9,1780.0 1474.6,1796.5 1475.8,1820.9 1559.0,1826.4 1552.3,1817.5 1565.2,79.7 1123.9,46.6 1095.9,669.5 1095.9,690.7 1095.0,690.7 1094.8,693.4 421.3,694.2 392.5,777.0 320.2,775.8 272.5,775.0 159.3,701.1 28.2,770.1 32.7,947.4 49.9,1401.2 55.0,1460.8 75.3,1809.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[746.0,743.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.134479,40.414992]}},{"type":"Feature","properties":{"resourceCoords":[1396.0,60.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.132763,40.416225]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0004__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Carthage, Illinois | 1906 | sanborn01772_004 p4 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.69"},{"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":"2026-10-18T23:56:33Z","modified":"2026-10-18T23:56:33Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0004__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"38.6,817.0 49.7,1826.7 689.9,1866.8 739.4,1802.7 782.4,1288.1 781.9,1234.7 786.8,1234.7 786.9,1233.6 1341.5,1224.3 1568.8,1166.5 1572.2,227.9 1536.7,220.9 1514.3,187.6 1431.1,178.0 1431.2,153.4 730.1,102.0 730.4,68.3 26.9,96.1 26.9,108.5 21.2,478.1 25.6,834.5 38.6,817.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104cm:g017721906:01772_1906-0004__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[729.0,474.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.1345524,40.4123103]}},{"type":"Feature","properties":{"resourceCoords":[729.0,1851.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.134566,40.409698]}}]}}]}