{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02782_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Oelwein, Iowa | 1906 | 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":"14"},{"label":"placed","value":"6"},{"label":"unplaced","value":"8"},{"label":"fit sources","value":"georef 4, georef-snap 2"},{"label":"key map","value":"georeferenced"},{"label":"split sheets","value":"4 sheet(s) cut into 11 panels"},{"label":"unplaced pages","value":"p1__1 (tier 1, 42.68188,-91.92517 +/-100m); p4__1 (tier 1, 42.68153,-91.90790 +/-100m); p5__1 (tier 2, 42.67515,-91.91539 +/-100m); p5__2 (tier 1, 42.67577,-91.92071 +/-100m); p5__3 (tier 1, 42.67437,-91.92050 +/-100m); p6__2 (tier 2, 42.67551,-91.91026 +/-203m); p6__3 (tier 1, 42.67414,-91.91228 +/-100m); p6__4 (tier 2, 42.67551,-91.91026 +/-203m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p1 [2]","metadata":[{"label":"streets","value":"3"},{"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":"5202.8"}],"created":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,0.0 0.0,0.0 0.0,1056.0 843.2,1058.9 842.8,1300.3 1613.0,1300.7 1613.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[949.0,1209.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.914829,42.669171]}},{"type":"Feature","properties":{"resourceCoords":[1490.0,1209.7],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913476,42.669213]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"12"}],"created":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1824.6 0.0,0.0 1613.0,0.0 1613.0,888.7 1503.4,889.1 1524.9,1753.8 -0.0,1824.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[972.0,262.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913307,42.681318]}},{"type":"Feature","properties":{"resourceCoords":[972.0,1775.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913362,42.678479]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0003/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p3","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0003/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1595.3,1853.8 -0.0,1870.2 0.0,0.0 1602.6,-0.0 1595.3,1853.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0003/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.90710186991348,42.68009213995294]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.9071424724754,42.67698130315314]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.91212577483726,42.67701695439248]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.91208517227534,42.68012779119228]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0004__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p4 [2]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"23"},{"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":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0004__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0004","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"92.5,191.2 95.2,0.0 0.0,-0.0 0.0,1369.9 320.5,1370.8 316.9,1631.2 592.9,1634.2 729.7,1757.2 1594.2,1756.7 1613.0,142.3 92.5,191.2\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0004__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1065.0,910.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913362,42.677063]}},{"type":"Feature","properties":{"resourceCoords":[1065.0,156.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913362,42.678479]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0006__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p6 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"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":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0006__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0006","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,817.4 1610.9,814.6 1363.9,815.2 1354.6,211.0 1353.4,112.7 538.0,122.1 399.1,0.0 0.0,0.0 0.0,1385.6 302.1,1385.4 534.7,1385.3 535.4,1913.0 1613.0,1913.0 1613.0,817.4\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0006__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[864.0,942.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.913413,42.6739361]}},{"type":"Feature","properties":{"resourceCoords":[864.0,118.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-91.91339,42.675474]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0007/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Oelwein, Iowa | 1906 | sanborn02782_004 p7","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T08:14:02Z","modified":"2026-09-23T08:14:02Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0007/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0007","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1866.5 25.9,-0.0 1613.0,-0.0 1613.0,1665.3 1524.1,1665.3 1351.5,1797.2 1193.3,1855.5 -0.0,1866.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154om:g027821906:02782_1906-0007/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.90713078293672,42.67705111626418]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.90717860002418,42.67394502637543]}},{"type":"Feature","properties":{"resourceCoords":[1613.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.91215405593381,42.673987014401945]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1913.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-91.91210623884635,42.6770931042907]}}]}}]}