{"id":"https://data.mapsnap.org/runs/v2.0/iiif/chronoscope/sanborn01880_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Galesburg, Illinois | 1911 | mapsnap generated fit (2026-10-19)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-10-19"},{"label":"run","value":"corpus-v2"},{"label":"pages","value":"55"},{"label":"placed","value":"29"},{"label":"unplaced","value":"26"},{"label":"fit sources","value":"georef 19, georef-snap 10"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"10 sheet(s) cut into 43 panels"},{"label":"unplaced pages","value":"p13__2 (tier 1, 40.94911,-90.34957 +/-203m); p17__1 (tier 1, 40.93727,-90.37397 +/-100m); p17__2 (tier 1, 40.94226,-90.36743 +/-222m); p17__3 (tier 1, 40.94162,-90.36831 +/-100m); p17__4 (tier 1, 40.93724,-90.37262 +/-100m); p17__5 (tier 1, 40.93712,-90.37388 +/-169m); p18__1 (tier 1, 40.94229,-90.36449 +/-123m); p20__1 (tier 1, 40.93702,-90.37739 +/-100m); p20__2 (tier 1, 40.93690,-90.37355 +/-126m); p20__3 (tier 1, 40.93728,-90.37439 +/-100m); p20__4 (tier 3, 40.93938,-90.37638 +/-554m); p21__1 (tier 1, 40.93942,-90.38199 +/-144m); p21__2 (tier 1, 40.95978,-90.36237 +/-337m); p21__3 (tier 1, 40.93987,-90.38061 +/-100m); p21__4 (tier 1, 40.94044,-90.38027 +/-101m); p21__5 (tier 1, 40.94026,-90.38198 +/-100m); p21__7 (tier 1, 40.94025,-90.38072 +/-100m); p21__8 (tier 3, 40.94949,-90.37159 +/-1334m); p21__9 (tier 1, 40.94031,-90.38064 +/-100m); p22__1 (tier 4, 40.94680,-90.36461 +/-2084m); p22__2 (tier 4, 40.94680,-90.36461 +/-2084m); p22__3 (tier 4, 40.94680,-90.36461 +/-2084m); p23__2 (tier 1, 40.95036,-90.36223 +/-100m); p23__6 (tier 1, 40.93648,-90.36957 +/-120m); p23__7 (tier 1, 40.95248,-90.35984 +/-107m); p6__2 (tier 1, 40.94862,-90.37453 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p10 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.86"},{"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":"2810.4"},{"label":"split_canvas_h","value":"3191.2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"671.8,760.0 660.5,58.1 543.8,13.4 28.7,30.3 23.3,682.8 75.7,730.5 27.0,761.5 671.8,760.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[646.6,219.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36788086625548,40.95644431527079]}},{"type":"Feature","properties":{"resourceCoords":[96.0,219.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36925366390804,40.95649273500687]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p10 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"3"},{"label":"confidence","value":"0.48"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2758.8"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3693.2"},{"label":"split_canvas_h","value":"3167.6"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1585.1,586.2 1577.2,159.5 1498.0,58.9 1105.0,38.1 956.4,119.0 727.9,78.7 723.7,753.7 1521.8,746.8 1585.1,586.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1548.0,76.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.364536,40.9548027]}},{"type":"Feature","properties":{"resourceCoords":[734.7,744.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.366198,40.9564423]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p10 [3]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3136.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4515.6"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"321.5,1841.8 1279.8,1829.8 1450.0,1827.4 1488.5,871.5 1000.2,874.3 956.6,874.1 54.0,891.3 54.8,1417.0 67.4,1844.8 321.5,1841.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0010__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[962.0,872.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36236464354982,40.947454541002536]}},{"type":"Feature","properties":{"resourceCoords":[962.0,1833.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3624152535982,40.9456253505471]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0011/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p11","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0011/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0011","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1546.4,340.6 1537.5,340.7 1572.5,248.9 1550.5,1.0 1550.1,1.0 1546.8,14.8 1546.7,151.7 592.8,110.7 593.0,74.0 53.5,76.5 66.8,1365.0 592.2,1722.3 591.8,1756.3 1542.0,1811.8 1542.0,1784.0 1546.0,726.0 1546.4,340.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0011/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1546.0,726.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3584342,40.9456032]}},{"type":"Feature","properties":{"resourceCoords":[593.0,74.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3567758,40.9474234]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0012/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p12","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.92"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0012/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0012","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1408.1,26.4 1500.5,75.4 1562.8,904.0 1515.2,1209.0 1549.5,1578.3 1549.6,1632.4 1550.0,1770.0 591.0,1732.5 591.1,1695.7 48.8,1700.4 27.7,234.1 64.6,103.6 582.5,107.1 582.6,86.5 942.0,35.6 942.5,35.6 1408.1,26.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0012/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1534.0,958.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3549324587563,40.94561895735398]}},{"type":"Feature","properties":{"resourceCoords":[580.0,1200.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.35552624533827,40.947438246524506]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0013__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p13 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"5"},{"label":"confidence","value":"0.92"},{"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":"3674.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0013__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0013","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"894.4,799.5 917.5,520.9 917.5,433.5 878.0,155.6 798.1,40.6 711.6,26.7 235.9,36.5 49.6,232.3 104.0,938.7 47.3,1097.7 50.9,1746.7 25.0,1837.8 551.7,1842.0 551.9,1820.9 917.5,1770.6 917.5,1769.6 836.7,1771.1 903.9,898.1 908.5,898.6 875.8,799.1 894.4,799.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0013__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[551.7,794.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3501763,40.9474086]}},{"type":"Feature","properties":{"resourceCoords":[551.7,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3527718,40.9474196]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0014/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p14","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.98"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0014/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0014","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"93.1,1706.9 57.0,1706.4 70.2,1033.0 54.1,1033.1 69.1,58.3 1151.7,57.4 1546.1,56.1 1588.0,1871.7 138.1,1875.0 138.1,1879.8 93.1,1706.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0014/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[607.0,1032.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3598003,40.9437881]}},{"type":"Feature","properties":{"resourceCoords":[607.0,1714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3598126,40.9425127]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0015/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p15","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.91"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0015/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0015","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"108.0,1770.4 122.0,1157.5 94.5,1135.9 74.8,122.3 323.4,123.5 1292.7,127.1 1493.3,127.5 1475.9,1095.9 1491.9,1095.9 1477.0,1764.9 961.6,1756.4 409.9,1754.1 146.4,1759.9 108.0,1770.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0015/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1466.0,1090.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3611936422686,40.94380483808891]}},{"type":"Feature","properties":{"resourceCoords":[966.0,1766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36244741647778,40.94253672051052]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p16 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.80"},{"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":"3077.2"},{"label":"split_canvas_h","value":"1580.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"749.1,309.5 732.8,124.0 603.4,39.8 439.7,98.6 381.7,20.7 110.2,16.4 32.7,110.1 33.9,224.3 47.6,174.2 35.0,331.4 99.9,387.9 478.0,341.0 628.5,389.4 749.1,309.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[518.2,300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3776633,40.9548985]}},{"type":"Feature","properties":{"resourceCoords":[96.0,300.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.378719,40.954907]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p16 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.78"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"3077.2"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3374.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"800.6,48.2 824.4,1116.3 829.3,1288.0 830.8,1378.9 921.6,1847.9 1489.8,1808.5 1577.0,965.5 1463.7,86.2 1468.0,86.2 1467.0,37.0 800.6,48.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1467.0,37.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680686,40.9425594]}},{"type":"Feature","properties":{"resourceCoords":[815.3,714.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3697148,40.9438353]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p16 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"7"},{"label":"confidence","value":"0.43"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1580.0"},{"label":"split_canvas_w","value":"3077.2"},{"label":"split_canvas_h","value":"6072.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"95.0,547.7 94.4,784.1 72.3,938.2 72.2,1205.8 79.0,1840.0 716.3,1840.0 707.4,1202.3 663.0,1195.6 748.0,554.8 716.0,540.8 708.5,514.0 126.6,506.6 95.0,547.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0016__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[716.3,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680686,40.9425594]}},{"type":"Feature","properties":{"resourceCoords":[79.0,1840.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680438,40.9438231]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0018__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p18 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"6"},{"label":"confidence","value":"0.93"},{"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":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0018__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0018","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1478.0,1878.0 1484.6,1516.8 1487.3,1191.5 1496.0,766.0 1503.2,164.3 1513.5,142.1 846.9,42.1 839.0,88.2 174.0,86.0 125.0,85.3 87.5,974.2 569.7,975.4 573.2,980.5 574.4,980.5 586.9,1000.6 661.6,1110.3 611.2,1415.1 716.6,1826.5 950.6,1805.8 1014.3,1876.9 1478.0,1878.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0018__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[174.0,86.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680686,40.9425594]}},{"type":"Feature","properties":{"resourceCoords":[1496.0,766.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3647347,40.9412716]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0019/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p19","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.95"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0019/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0019","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"79.2,1505.4 79.3,1181.5 84.7,758.0 87.2,158.9 112.0,103.7 177.8,85.8 437.3,79.8 980.6,81.7 1523.5,90.1 1567.2,259.4 1561.9,1856.8 1096.1,1866.5 1004.0,1810.5 736.1,1861.3 75.4,1865.0 79.2,1505.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0019/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[964.0,1436.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36251915143508,40.939966441946616]}},{"type":"Feature","properties":{"resourceCoords":[964.0,80.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36250036885446,40.942558173517305]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.94"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"961.2,1852.6 301.6,1856.8 2.9,1851.1 13.8,1751.0 40.9,1750.0 57.8,1405.8 37.0,1233.0 70.0,1233.4 101.2,946.5 111.7,946.6 55.7,731.0 42.5,731.0 42.5,730.6 68.5,58.7 999.5,24.8 999.3,15.7 1537.0,373.1 1535.9,901.4 1535.4,945.5 1545.9,1858.2 961.2,1852.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1537.0,948.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36238462103937,40.94744799529154]}},{"type":"Feature","properties":{"resourceCoords":[1537.0,1862.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36466299303021,40.947470917670145]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p20 [5]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.88"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3183.6"},{"label":"split_canvas_w","value":"4274.0"},{"label":"split_canvas_h","value":"4468.4"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"7.0,1892.0 565.5,1828.2 734.2,1886.7 1035.9,1883.4 1038.3,1850.1 1057.9,812.0 6.2,806.2 7.0,1892.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[392.2,1176.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3760197,40.9375195]}},{"type":"Feature","properties":{"resourceCoords":[1036.5,1850.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.374369,40.9362459]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p20 [6]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.93"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4274.0"},{"label":"split_canvas_y","value":"3166.8"},{"label":"split_canvas_w","value":"2178.0"},{"label":"split_canvas_h","value":"4485.2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1146.2,1814.3 1515.1,1841.3 1575.4,869.0 1334.1,834.5 1157.0,891.9 1086.7,1062.4 1145.2,1558.9 1103.4,1750.6 1146.2,1814.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0020__6/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1532.1,1152.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.37599436897938,40.941336343405496]}},{"type":"Feature","properties":{"resourceCoords":[1532.1,1816.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.37600045095395,40.94007473236934]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0021__6/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p21 [6]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.96"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"5896.0"},{"label":"split_canvas_w","value":"1518.4"},{"label":"split_canvas_h","value":"1756.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0021__6/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0021","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"21.9,1479.8 6.8,1897.2 367.1,1892.0 361.4,1503.1 21.9,1479.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0021__6/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1474.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.38174532355697,40.94036899266553]}},{"type":"Feature","properties":{"resourceCoords":[379.6,1474.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.38078579326016,40.94035837912659]}},{"type":"Feature","properties":{"resourceCoords":[379.6,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.38080202353282,40.93952093673506]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.38176155382963,40.939531550274]}},{"type":"Feature","properties":{"resourceCoords":[293.7,1616.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3810082,40.9400899]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p23 [1]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.82"},{"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":"2565.6"},{"label":"split_canvas_h","value":"3840.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"608.8,915.9 607.9,58.2 38.1,37.8 46.1,937.6 608.8,915.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[72.0,212.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.35919397715804,40.952135832924085]}},{"type":"Feature","properties":{"resourceCoords":[72.0,774.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.35919559876413,40.95105742733081]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p23 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"confidence","value":"0.28"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4482.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"1969.6"},{"label":"split_canvas_h","value":"1746.8"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__3/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1570.5,420.3 1579.5,76.8 1452.3,66.9 1424.6,120.2 1310.3,57.6 1147.2,78.9 1144.2,384.8 1570.5,420.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1478.2,142.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3453301,40.9495656]}},{"type":"Feature","properties":{"resourceCoords":[1478.2,383.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3453527,40.94913]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p23 [4]","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.81"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"2531.2"},{"label":"split_canvas_y","value":"1715.2"},{"label":"split_canvas_w","value":"1951.2"},{"label":"split_canvas_h","value":"2394.0"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__4/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"787.5,480.4 787.6,462.2 690.2,495.6 651.1,1006.5 1069.0,984.2 1109.2,503.9 787.5,480.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[632.8,428.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.35058173033497,40.94687176433921]}},{"type":"Feature","properties":{"resourceCoords":[1120.6,428.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.34935295501346,40.94685343198124]}},{"type":"Feature","properties":{"resourceCoords":[1120.6,1027.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.34938247721838,40.945708504590314]}},{"type":"Feature","properties":{"resourceCoords":[632.8,1027.3],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.35061125253989,40.94572683694828]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p23 [5]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"confidence","value":"0.84"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4462.8"},{"label":"split_canvas_y","value":"1731.6"},{"label":"split_canvas_w","value":"1989.2"},{"label":"split_canvas_h","value":"2391.6"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1612.0,869.7 1596.3,869.2 1575.4,453.1 1144.6,460.1 1144.2,862.5 1117.0,865.8 1116.9,877.4 1116.8,898.4 1399.7,928.2 1399.7,938.5 1612.0,882.7 1612.0,875.0 1612.0,869.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__5/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[1115.7,432.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.36303085433525,40.9511066908878]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,432.9],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.3617733974802,40.95109117894869]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1030.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.36179809471015,40.94994854822346]}},{"type":"Feature","properties":{"resourceCoords":[1115.7,1030.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-90.3630555515652,40.94996406016257]}},{"type":"Feature","properties":{"resourceCoords":[1402.3,452.9],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.362307,40.9510596]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__8/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p23 [8]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"confidence","value":"0.68"},{"label":"confidence_provisional","value":"true"},{"label":"confidence_model","value":"corpus-v2"},{"label":"split_canvas_x","value":"4636.8"},{"label":"split_canvas_y","value":"4110.8"},{"label":"split_canvas_w","value":"1815.2"},{"label":"split_canvas_h","value":"3541.2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__8/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1212.6,1871.2 1522.4,1891.7 1586.8,1783.5 1578.6,1481.0 1499.1,1423.7 1541.5,1185.9 1433.0,1056.7 1303.3,1042.7 1195.6,1158.3 1212.6,1871.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0023__8/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1345.1,1442.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3397698,40.9473811]}},{"type":"Feature","properties":{"resourceCoords":[1345.1,1652.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3402902,40.9473825]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p3","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"11"},{"label":"confidence","value":"0.96"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"802.6,1833.4 152.0,1842.0 143.9,1277.9 144.2,667.4 139.2,117.7 235.7,48.9 1368.4,29.2 1536.4,95.9 1546.9,340.4 1449.8,330.3 1445.4,620.0 1452.0,1260.0 1448.8,1827.2 802.6,1833.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0003/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[802.0,1268.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3662909,40.948561]}},{"type":"Feature","properties":{"resourceCoords":[152.0,1842.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3679865,40.9474689]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"},{"label":"confidence","value":"0.77"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"412.9,1821.6 409.0,1853.7 473.9,1819.2 527.6,1801.9 1413.1,1806.9 1412.8,1242.6 1421.6,632.0 1424.2,82.2 1410.7,91.5 506.8,25.1 206.0,54.0 206.0,603.1 200.8,1244.1 200.9,1470.0 222.3,1525.2 282.8,1605.1 200.9,1586.5 148.1,1592.8 98.5,1611.9 55.0,1642.6 20.3,1683.0 1.0,1721.8 1.0,1865.0 412.9,1821.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0004/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[768.0,1246.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36963892616242,40.94856164762099]}},{"type":"Feature","properties":{"resourceCoords":[1402.0,582.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.36800414551817,40.94984586555274]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0005/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p5","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.52"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0005/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1103.1,1824.3 1047.2,1860.4 983.3,1886.4 72.8,1797.3 99.0,1505.0 128.0,1229.7 149.7,1231.5 173.0,1010.0 195.7,528.9 131.3,258.2 93.3,254.3 113.8,87.9 1039.3,21.7 1300.9,45.3 1399.3,139.7 1475.8,139.5 1423.5,697.8 1357.1,1349.1 1335.6,1578.8 1352.1,1637.0 1406.0,1724.0 1324.5,1697.3 1270.2,1698.7 1217.9,1713.3 1170.8,1740.4 1131.7,1778.2 1103.1,1824.3\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0005/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[860.0,588.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3725135,40.9499246]}},{"type":"Feature","properties":{"resourceCoords":[1406.0,1724.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3708888,40.9478681]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p6 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"13"},{"label":"confidence","value":"0.96"},{"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":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"52.8,159.8 46.2,680.5 497.1,731.0 549.4,731.0 549.4,736.9 553.4,737.3 547.8,932.7 545.4,1226.4 539.2,1229.7 239.8,1241.2 112.4,1307.2 44.9,1572.1 63.5,1864.3 1575.7,1870.7 1499.3,1522.3 1587.0,1178.7 1557.2,688.0 1549.0,688.0 1546.3,344.9 1543.8,17.5 1249.0,22.0 970.9,21.9 970.5,1.0 729.1,1.0 263.6,27.8 1.0,120.1 1.0,158.9 52.8,159.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[591.0,1264.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3772987,40.9493381]}},{"type":"Feature","properties":{"resourceCoords":[1549.0,688.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3758915,40.9475104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p7","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"10"},{"label":"confidence","value":"0.27"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"158.2,1295.8 189.4,423.8 160.9,364.4 123.3,313.4 196.7,312.4 254.3,314.2 254.7,318.6 339.9,273.2 391.4,201.4 439.9,165.6 486.6,151.4 1347.1,186.4 1381.7,172.1 1612.0,152.6 1612.0,181.8 1548.9,189.4 1563.0,1849.5 444.9,1865.4 141.6,1809.4 143.4,1912.0 139.3,1912.0 136.7,1912.0 147.3,1606.5 158.2,1295.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0007/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[746.0,162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3711796,40.946395]}},{"type":"Feature","properties":{"resourceCoords":[1382.0,162.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3711323,40.9451285]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0008/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p8","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"16"},{"label":"confidence","value":"0.62"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0008/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0008","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"449.6,59.9 445.8,90.8 508.4,57.7 560.3,41.2 1414.4,48.4 1402.3,591.6 1402.0,1223.0 1394.2,1860.5 387.7,1851.7 296.9,1851.5 225.9,1851.4 140.3,1850.1 279.2,1827.7 221.3,1441.7 250.1,1439.9 224.2,1212.5 209.0,1178.6 219.0,325.9 203.7,280.1 166.9,233.2 94.3,184.3 46.9,101.2 449.6,59.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0008/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1402.0,1223.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680218,40.9451057]}},{"type":"Feature","properties":{"resourceCoords":[216.0,583.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3711796,40.946395]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0009/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Galesburg, Illinois | 1911 | sanborn01880_005 p9","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"15"},{"label":"confidence","value":"0.97"},{"label":"confidence_model","value":"corpus-v2"}],"created":"2026-10-19T18:55:48Z","modified":"2026-10-19T18:55:48Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0009/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0009","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1453.2,945.1 1471.8,1908.7 1457.0,1897.0 1220.2,1894.0 1066.0,1870.3 798.0,1867.4 162.5,1867.7 168.0,1220.0 165.8,578.5 176.1,26.6 813.9,26.3 1447.3,28.3 1439.8,533.7 1445.2,945.1 1453.2,945.1\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd410m:g4104m:g4104gm:g018801911:01880_1911-0009/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[168.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.3680218,40.9451057]}},{"type":"Feature","properties":{"resourceCoords":[1445.0,1220.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-90.364674,40.9450943]}}]}}]}