{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn08229_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Elkton, South-Dakota | 1904 | 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":"3"},{"label":"unplaced","value":"0"},{"label":"fit sources","value":"georef 3"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 2 panels"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, South-Dakota | 1904 | sanborn08229_003 p1","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"12"}],"created":"2026-09-21T11:53:52Z","modified":"2026-09-21T11:53:52Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0001/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6512.0,7708.0 -0.0,7708.0 -0.0,6191.9 365.8,6192.3 396.8,0.0 6512.0,0.0 6512.0,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0001/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2928.0,3404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4810382,44.2362288]}},{"type":"Feature","properties":{"resourceCoords":[5512.0,3404.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4793454,44.2362412]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, South-Dakota | 1904 | sanborn08229_003 p2 [1]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"4"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2037.2"},{"label":"split_canvas_w","value":"3807.2"},{"label":"split_canvas_h","value":"5670.8"}],"created":"2026-09-21T11:53:52Z","modified":"2026-09-21T11:53:52Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"0.0,5526.8 -0.0,7708.0 3264.0,7708.0 3804.8,7708.0 3807.2,5251.6 2526.8,4061.6 2487.2,2037.2 0.0,2073.2 0.0,5526.8\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3623.2,5328.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4809985,44.2315345]}},{"type":"Feature","properties":{"resourceCoords":[1191.7,5328.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4810127,44.2326964]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Elkton, South-Dakota | 1904 | sanborn08229_003 p2 [2]","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":"2026-09-21T11:53:52Z","modified":"2026-09-21T11:53:52Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002/info.json","type":"ImageService2","height":7708,"width":6512},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4424.0,7708.0 6293.9,7708.0 6317.0,1577.8 6512.0,1637.6 6512.0,0.0 -0.0,-0.0 0.0,2073.2 2487.2,2037.2 2526.8,4061.6 3807.2,5251.6 3804.8,7708.0 4424.0,7708.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd418m:g4184m:g4184em:g082291904:08229_1904-0002__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[3868.0,2488.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4843552,44.2374015]}},{"type":"Feature","properties":{"resourceCoords":[6296.0,7416.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-96.4826984,44.23505]}}]}}]}