{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn02722_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Logan, Iowa | 1908 | 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":"5"},{"label":"placed","value":"4"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 4"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 4 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 41.64423,-95.78825 +/-312m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1908 | sanborn02722_004 p1 [1]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"14"},{"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":"2026-09-22T08:43:35Z","modified":"2026-09-22T08:43:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"89.1,1835.8 87.9,1913.0 1613.0,1913.0 1613.0,748.1 794.0,751.6 792.7,0.0 68.7,0.0 57.4,736.6 106.6,737.0 97.8,1286.0 55.5,1285.9 62.9,1835.6 89.1,1835.8\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[580.0,1288.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7851658,41.643021]}},{"type":"Feature","properties":{"resourceCoords":[68.0,190.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.786458,41.645117]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1908 | sanborn02722_004 p2","metadata":[{"label":"streets","value":"8"},{"label":"intersections","value":"25"}],"created":"2026-09-22T08:43:35Z","modified":"2026-09-22T08:43:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0002","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"28.6,160.5 1566.8,140.1 1565.0,674.0 1613.0,673.6 1613.0,1209.8 1571.7,1210.3 1613.0,1913.0 -0.0,1913.0 -0.0,1767.5 50.3,1767.2 28.6,160.5\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[554.0,1230.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.789163,41.643033]}},{"type":"Feature","properties":{"resourceCoords":[1565.0,674.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.7864919,41.644076]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1908 | sanborn02722_004 p3 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"9"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3198.4"},{"label":"split_canvas_w","value":"6452.0"},{"label":"split_canvas_h","value":"4453.6"}],"created":"2026-09-22T08:43:35Z","modified":"2026-09-22T08:43:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1562.5,1870.0 1564.5,1688.7 1613.0,1689.0 1613.0,799.6 290.4,801.1 0.0,801.4 0.0,812.9 -0.0,1854.5 1562.5,1870.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[564.0,1339.3],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.789129,41.646171]}},{"type":"Feature","properties":{"resourceCoords":[1562.0,1870.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.786458,41.645117]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Logan, Iowa | 1908 | sanborn02722_004 p3 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"15"},{"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":"3205.6"}],"created":"2026-09-22T08:43:35Z","modified":"2026-09-22T08:43:35Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1613.0,100.6 1572.7,99.8 1573.3,52.1 50.0,43.0 50.0,99.4 -0.0,99.6 -0.0,801.4 290.4,801.1 1613.0,799.6 1613.0,100.6\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd415m:g4154m:g4154lm:g027221908:02722_1908-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[556.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.790479,41.644099]}},{"type":"Feature","properties":{"resourceCoords":[50.0,43.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-95.790477,41.64514]}}]}}]}