{"id":"https://data.mapsnap.org/runs/v1.3/iiif/chronoscope/sanborn08219_004.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Clark, South-Dakota | 1909 | 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":"6"},{"label":"placed","value":"3"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 44.87879,-97.73433 +/-226m); p1__3 (tier 4, 44.87879,-97.73433 +/-226m); p3__2 (tier 1, 44.88434,-97.73699 +/-100m)"}],"items":[{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0001__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clark, South-Dakota | 1909 | sanborn08219_004 p1 [1]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-22T13:11:15Z","modified":"2026-09-22T13:11:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0001__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0001","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"60.3,1918.7 1628.0,1927.0 1628.0,807.2 646.9,809.7 645.3,53.1 645.3,886.0 59.4,884.9 0.0,884.9 -0.0,1063.0 58.1,1063.5 59.9,1268.8 60.3,1918.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0001__1/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.73511491045693,44.88235941321884]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.7309064193078,44.882358969353106]}},{"type":"Feature","properties":{"resourceCoords":[1628.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.73090716037095,44.87882732100932]}},{"type":"Feature","properties":{"resourceCoords":[0.0,1927.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.73511565152008,44.878827764875055]}},{"type":"Feature","properties":{"resourceCoords":[710.0,1269.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.73328,44.8800335]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clark, South-Dakota | 1909 | sanborn08219_004 p2","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"8"}],"created":"2026-09-22T13:11:15Z","modified":"2026-09-22T13:11:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0002/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0002","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,1927.0 -0.0,-0.0 1598.6,0.0 1618.6,1927.0 -0.0,1927.0\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[966.0,861.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7366205,44.878843]}},{"type":"Feature","properties":{"resourceCoords":[344.0,1522.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.7382439,44.877642]}}]}},{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Clark, South-Dakota | 1909 | sanborn08219_004 p3 [1]","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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-22T13:11:15Z","modified":"2026-09-22T13:11:15Z","motivation":"georeferencing","target":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0003__1/selector","type":"SpecificResource","source":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0003","type":"ImageService3","width":1628,"height":1927},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"1628.0,396.7 1383.2,397.5 1383.1,65.4 1322.9,65.4 1322.9,46.9 74.3,57.3 74.7,1081.2 -0.0,1080.5 -0.0,1923.7 1628.0,1927.0 1628.0,396.7\" /></svg>"}},"body":{"id":"https://cdn.chronoscope.io/mapsnap/service:gmd:gmd418m:g4184m:g4184cm:g082191909:08219_1909-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[695.0,685.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.73328,44.8776386]}},{"type":"Feature","properties":{"resourceCoords":[695.0,52.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.73328,44.8788531]}}]}}]}