{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn02583_001.main.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Boone, Iowa | 1883 | 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":"7"},{"label":"placed","value":"4"},{"label":"unplaced","value":"3"},{"label":"fit sources","value":"georef 3, georef-snap 1"},{"label":"key map","value":"none"},{"label":"split sheets","value":"1 sheet(s) cut into 5 panels"},{"label":"unplaced pages","value":"p3__1 (tier 1, 42.06572,-93.88881 +/-100m); p3__3 (tier 2, 42.06329,-93.88029 +/-100m); p3__5 (tier 1, 42.06437,-93.87851 +/-102m)"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0001/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boone, Iowa | 1883 | sanborn02583_001 p1","metadata":[{"label":"streets","value":"0"},{"label":"intersections","value":"0"}],"created":"2026-09-22T04:44:24Z","modified":"2026-09-22T04:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0001/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0001/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"188.2,7652.0 206.2,1696.5 -0.0,1696.5 -0.0,0.0 6452.0,-0.0 6452.0,7652.0 188.2,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0001/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87763013520467,42.06390339644917]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,0.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87759923982573,42.060866576836965]}},{"type":"Feature","properties":{"resourceCoords":[6452.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.88241648401429,42.060839181599725]}},{"type":"Feature","properties":{"resourceCoords":[0.0,7652.0],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.88244737939323,42.06387600121193]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0002/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boone, Iowa | 1883 | sanborn02583_001 p2","metadata":[{"label":"streets","value":"7"},{"label":"intersections","value":"8"}],"created":"2026-09-22T04:44:24Z","modified":"2026-09-22T04:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0002/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0002/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,7652.0 -0.0,0.0 6083.8,-0.0 6066.8,6007.4 6452.0,6007.4 6452.0,7652.0 -0.0,7652.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0002/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6064.0,5716.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8822646,42.0637897]}},{"type":"Feature","properties":{"resourceCoords":[6064.0,276.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8788695,42.0638085]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__2/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boone, Iowa | 1883 | sanborn02583_001 p3 [2]","metadata":[{"label":"streets","value":"6"},{"label":"intersections","value":"8"},{"label":"split_canvas_x","value":"2098.4"},{"label":"split_canvas_y","value":"0.0"},{"label":"split_canvas_w","value":"4353.6"},{"label":"split_canvas_h","value":"7652.0"}],"created":"2026-09-22T04:44:24Z","modified":"2026-09-22T04:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__2/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"2146.4,0.0 2136.4,1720.0 2131.2,2504.8 2119.6,4248.0 2098.4,7652.0 4392.0,7652.0 5252.0,7652.0 6452.0,7652.0 6452.0,-0.0 2146.4,0.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__2/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[6164.2,4380.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.90556,42.058376]}},{"type":"Feature","properties":{"resourceCoords":[6164.2,304.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.90296,42.058388]}}]}},{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__4/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Boone, Iowa | 1883 | sanborn02583_001 p3 [4]","metadata":[{"label":"streets","value":"2"},{"label":"intersections","value":"1"},{"label":"split_canvas_x","value":"0.0"},{"label":"split_canvas_y","value":"2504.8"},{"label":"split_canvas_w","value":"2131.2"},{"label":"split_canvas_h","value":"1752.8"}],"created":"2026-09-22T04:44:24Z","modified":"2026-09-22T04:44:24Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__4/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003/info.json","type":"ImageService2","height":7652,"width":6452},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,4257.6 2119.6,4248.0 2131.2,2504.8 0.0,2513.6 -0.0,4257.6\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd415m:g4154m:g4154bm:g025831883:02583_1883-0003__4/gcps","type":"FeatureCollection","transformation":{"type":"polynomial","options":{"order":1}},"features":[{"type":"Feature","properties":{"resourceCoords":[0.0,2504.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87564528823263,42.06410735863017]}},{"type":"Feature","properties":{"resourceCoords":[2131.2,2504.8],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87563822773717,42.06311210847582]}},{"type":"Feature","properties":{"resourceCoords":[2131.2,4257.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87673918580342,42.06310779834495]}},{"type":"Feature","properties":{"resourceCoords":[0.0,4257.6],"type":"corner"},"geometry":{"type":"Point","coordinates":[-93.87674624629888,42.0641030484993]}},{"type":"Feature","properties":{"resourceCoords":[635.8,4157.6],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-93.8766813,42.0638064]}}]}}]}