{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn04247_002.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Alden, Minnesota | 1917 | mapsnap generated fit (2026-09-21)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-21"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"3"},{"label":"placed","value":"2"},{"label":"unplaced","value":"1"},{"label":"fit sources","value":"georef 2"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 3 panels"},{"label":"unplaced pages","value":"p1__3 (tier 4, 43.67177,-93.57545 +/-117m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alden, Minnesota | 1917 | sanborn04247_002 p1 [1]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"12"},{"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":"2026-09-21T06:55:30Z","modified":"2026-09-21T06:55:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"638.0,1913.0 1613.0,1913.0 1613.0,1680.0 1534.0,1670.0 1532.2,1191.1 1613.0,1194.2 1613.0,709.3 896.5,712.2 669.5,0.0 401.3,0.0 0.0,-0.0 0.0,1670.8 407.8,1657.8 404.1,1913.0 638.0,1913.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[1534.0,1670.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.5740077,43.6718393]}},{"type":"Feature","properties":{"resourceCoords":[592.0,1184.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.5759699,43.6704297]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Alden, Minnesota | 1917 | sanborn04247_002 p1 [2]","metadata":[{"label":"streets","value":"4"},{"label":"intersections","value":"5"},{"label":"split_canvas_x","value":"2678.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"3774.0"},{"label":"split_canvas_h","value":"2848.8"}],"created":"2026-09-21T06:55:30Z","modified":"2026-09-21T06:55:30Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__2/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001","type":"ImageService3","width":1613,"height":1913},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"911.0,0.0 910.2,202.4 831.4,199.1 831.4,508.0 884.4,674.1 908.5,677.5 908.3,712.1 1613.0,709.3 1613.0,0.0 911.0,0.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd414m:g4144m:g4144am:g042471917:04247_1917-0001__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[831.4,667.2],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.5740077,43.6718393]}},{"type":"Feature","properties":{"resourceCoords":[831.4,199.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.5751981,43.672114]}}]}}]}