{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08208_005.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Bridgewater, South-Dakota | 1923 | 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":"9"},{"label":"placed","value":"5"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 6"},{"label":"key map","value":"none"},{"label":"split sheets","value":"3 sheet(s) cut into 9 panels"},{"label":"unplaced pages","value":"p1__2 (tier 4, 43.58009,-97.51700 +/-17595m); p3__2 (tier 2, 43.55030,-97.50120 +/-100m); p3__3 (tier 2, 43.55030,-97.50120 +/-100m)"},{"label":"withheld","value":"p1__1 (21.0 km from the catalogue location)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bridgewater, South-Dakota | 1923 | sanborn08208_005 p1 [3]","metadata":[{"label":"streets","value":"5"},{"label":"intersections","value":"6"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"3060.0"},{"label":"split_canvas_w","value":"3656.4"},{"label":"split_canvas_h","value":"4648.0"}],"created":"2026-09-22T13:13:17Z","modified":"2026-09-22T13:13:17Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"3655.2,7423.4 3640.8,4036.0 3639.6,3789.6 3426.8,3790.0 2806.0,3077.6 2783.0,3077.5 324.0,3126.6 324.0,7424.0 3655.2,7423.4\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[324.0,5304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.50083,43.5517085]}},{"type":"Feature","properties":{"resourceCoords":[324.0,7424.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.500831,43.550712]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bridgewater, South-Dakota | 1923 | sanborn08208_005 p1 [4]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"3639.6"},{"label":"split_canvas_y","value":"3780.4"},{"label":"split_canvas_w","value":"2872.4"},{"label":"split_canvas_h","value":"3927.6"}],"created":"2026-09-22T13:13:17Z","modified":"2026-09-22T13:13:17Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4551.8,7708.0 6512.0,7708.0 6512.0,6192.4 6110.2,5920.5 6260.5,5372.8 6272.3,3984.4 4095.0,3984.4 4048.4,4764.0 3643.9,4763.1 3653.7,7063.5 4551.8,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0001__4/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4095.0,3984.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.502287,43.5497059]}},{"type":"Feature","properties":{"resourceCoords":[6272.3,3984.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.50084,43.5497057]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bridgewater, South-Dakota | 1923 | sanborn08208_005 p2 [1]","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"11"},{"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":"2026-09-22T13:13:17Z","modified":"2026-09-22T13:13:17Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4060.0,6892.0 6341.1,6887.0 6342.6,291.6 6512.0,292.8 6512.0,0.0 0.0,-0.0 0.0,1445.2 1568.4,1451.2 1571.6,2449.6 852.6,2450.3 852.7,2537.5 -0.0,2539.9 -0.0,7708.0 640.0,7708.0 1804.0,7708.0 4012.9,7708.0 4060.0,6892.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4060.0,6892.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.502287,43.5497059]}},{"type":"Feature","properties":{"resourceCoords":[4060.0,332.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.502277,43.552716]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bridgewater, South-Dakota | 1923 | sanborn08208_005 p2 [2]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"1445.2"},{"label":"split_canvas_w","value":"1571.6"},{"label":"split_canvas_h","value":"1006.0"}],"created":"2026-09-22T13:13:17Z","modified":"2026-09-22T13:13:17Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,2451.2 1571.3,2353.0 1568.4,1451.2 0.0,1445.2 -0.0,2451.2\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,1445.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.50533543554695,43.55213620832399]}},{"type":"Feature","properties":{"resourceCoords":[1571.6,1445.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.50431395402815,43.552135085602515]}},{"type":"Feature","properties":{"resourceCoords":[1571.6,2451.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.50431494924321,43.55166127847743]}},{"type":"Feature","properties":{"resourceCoords":[0.0,2451.2],"type":"corner"},"geometry":{"type":"Point","coordinates":[-97.50533643076201,43.551662401198904]}},{"type":"Feature","properties":{"resourceCoords":[315.9,2355.4],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.505131,43.5517073]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0003__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Bridgewater, South-Dakota | 1923 | sanborn08208_005 p3 [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":"6512.0"},{"label":"split_canvas_h","value":"7708.0"}],"created":"2026-09-22T13:13:17Z","modified":"2026-09-22T13:13:17Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0003/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"136.0,4359.8 562.3,4647.9 562.4,6254.1 -0.0,6254.1 0.0,6361.6 1850.4,7708.0 3724.0,7708.0 4408.0,7708.0 4519.6,7708.0 4531.2,6362.4 6512.0,6557.2 6512.0,0.0 321.9,87.2 295.5,3779.3 136.0,4359.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184bm:g082081923:08208_1923-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2436.0,2308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.499507,43.5497055]}},{"type":"Feature","properties":{"resourceCoords":[308.0,2308.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-97.50084,43.5497057]}}]}}]}