{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02611_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Colfax, Iowa | 1911 | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"11"},{"label":"placed","value":"5"},{"label":"unplaced","value":"6"},{"label":"fit sources","value":"georef 3, georef-snap 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__2 (tier 1, 41.67329,-93.24325 +/-187m); p3__1 (tier 1, 41.67962,-93.23955 +/-124m); p5__1 (tier 1, 41.67579,-93.24157 +/-124m); p5__2 (tier 1, 41.67670,-93.24555 +/-105m); p5__3 (tier 1, 41.67621,-93.24625 +/-100m); p5__4 (tier 1, 41.67835,-93.24020 +/-140m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Colfax, Iowa | 1911 | sanborn02611_004 p1 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3087.2"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4564.8"}],"created":"2026-09-22T23:33:39Z","modified":"2026-09-22T23:33:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1512.3,1787.9 1530.0,1094.6 1613.0,1095.2 1613.0,772.1 0.0,771.8 -0.0,1913.0 833.7,1913.0 940.8,1590.2 1512.3,1787.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1530.0,1094.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2471069,41.6783805]}},{"type":"Feature","properties":{"resourceCoords":[52.0,1282.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2504135,41.6772388]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Colfax, Iowa | 1911 | sanborn02611_004 p2","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:33:39Z","modified":"2026-09-22T23:33:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"184.8,970.9 177.8,655.4 -0.0,658.6 -0.0,-0.0 1613.0,0.0 1613.0,923.0 1447.6,924.7 1461.7,1913.0 891.8,1913.0 101.0,1648.3 103.4,971.7 184.8,970.9\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0002/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24803705483119,41.680073241124504]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24418074056308,41.6809259718124]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24283616440204,41.67748595860468]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24669247867014,41.67663322791678]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Colfax, Iowa | 1911 | sanborn02611_004 p3 [2]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"13"},{"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":"2026-09-22T23:33:39Z","modified":"2026-09-22T23:33:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1612.5,314.4 1138.8,157.2 1192.0,0.0 -0.0,-0.0 0.0,1302.1 986.1,1313.7 979.7,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1225.0,1613.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2398967,41.677013]}},{"type":"Feature","properties":{"resourceCoords":[352.0,55.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2430622,41.6792688]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0004/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Colfax, Iowa | 1911 | sanborn02611_004 p4","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T23:33:39Z","modified":"2026-09-22T23:33:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0004/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1913.0 -0.0,470.7 185.6,406.5 184.3,322.5 180.6,73.8 1613.0,71.8 1613.0,1913.0 -0.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0004/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.2485580187779,41.6773399231373]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24455472216987,41.677253000753254]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24469177341925,41.673681690306054]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.24869507002728,41.673768612690104]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0005__5/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Colfax, Iowa | 1911 | sanborn02611_004 p5 [5]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"3308.4"},{"label":"split_canvas_y","value":"4359.6"},{"label":"split_canvas_w","value":"3143.6"},{"label":"split_canvas_h","value":"3292.4"}],"created":"2026-09-22T23:33:39Z","modified":"2026-09-22T23:33:39Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0005__5/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0005","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,1913.0 1613.0,1089.9 873.3,1098.4 832.7,1098.9 827.6,1842.2 1348.4,1839.5 1351.0,1913.0 1613.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154cm:g026111911:02611_1911-0005__5/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1317.0,1441.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2399712,41.680192]}},{"type":"Feature","properties":{"resourceCoords":[920.1,1834.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.2409273,41.679523]}}]}}]}