{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn05143_003.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Aurora, Nebraska | 1909 | mapsnap generated fit (2026-09-23)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-23"},{"label":"run","value":"corpus-v1"},{"label":"pages","value":"8"},{"label":"placed","value":"4"},{"label":"unplaced","value":"4"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"2 sheet(s) cut into 7 panels"},{"label":"unplaced pages","value":"p2__2 (tier 1, 40.86216,-98.00101 +/-100m); p3__2 (tier 1, 40.86353,-97.99902 +/-100m); p3__4 (tier 1, 40.87018,-98.00199 +/-100m); p3__5 (tier 1, 40.87143,-98.00731 +/-100m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Nebraska | 1909 | sanborn05143_003 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-23T18:42:13Z","modified":"2026-09-23T18:42:13Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,-0.0 6452.0,0.0 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.0102470401455,40.86432944824276]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.00609645454728,40.86474025333463]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.00545674953497,40.860991156615476]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-98.0096073351332,40.86058035152361]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0002__1/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Nebraska | 1909 | sanborn05143_003 p2 [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":"6452.0"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T18:42:13Z","modified":"2026-09-23T18:42:13Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0002__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,7652.0 6452.0,5762.4 6452.0,5212.4 6452.0,-0.0 3404.0,0.0 3404.8,856.8 2186.8,849.6 2186.8,0.0 -0.0,0.0 -0.0,7652.0 6452.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0002__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[2040.0,4924.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.003107,40.868484]}},{"type":"Feature","properties":{"resourceCoords":[2040.0,1976.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.001302,40.868575]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_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":"Aurora, Nebraska | 1909 | sanborn05143_003 p3 [1]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4128.8"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-23T18:42:13Z","modified":"2026-09-23T18:42:13Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003__1/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"4128.8,7652.0 4128.0,5487.2 4127.2,3993.6 4126.4,2125.6 4125.6,0.0 -0.0,-0.0 0.0,1237.6 0.0,1738.0 0.0,5487.6 0.0,5912.4 -0.0,7652.0 4128.8,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003__1/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[220.0,2060.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.001127,40.86636]}},{"type":"Feature","properties":{"resourceCoords":[3996.8,7032.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.0040043,40.8643321]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003__3/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Aurora, Nebraska | 1909 | sanborn05143_003 p3 [3]","metadata":[{"label":"streets","value":"3"},{"label":"intersections","value":"2"},{"label":"split_canvas_x","value":"4126.4"},{"label":"split_canvas_y","value":"2092.0"},{"label":"split_canvas_w","value":"2325.6"},{"label":"split_canvas_h","value":"1901.6"}],"created":"2026-09-23T18:42:13Z","modified":"2026-09-23T18:42:13Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003__3/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"6452.0,2092.0 4126.4,2125.6 4127.2,3993.6 6452.0,3960.0 6452.0,2092.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd419m:g4194m:g4194am:g051431909:05143_1909-0003__3/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4206.3,3901.5],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.007142,40.871541]}},{"type":"Feature","properties":{"resourceCoords":[4206.3,2208.1],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-98.005874,40.871541]}}]}}]}