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| View Original: | "Interior_of_treating_and_filtration_plant,_Boulder_City_water_supply._Rapid_sand_filters_and_controls_at_left."_-_NARA_-_293652.tif (3000x2124) | |||
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| Keywords: "Interior of treating and filtration plant, Boulder City water supply. Rapid sand filters and controls at left." - NARA - 293652.tif Scope and content Photograph from Volume Two of a series of photo albums documenting the construction of Hoover Dam Boulder City Nevada General notes 293652 Local identifier Department of the Interior Bureau of Reclamation Engineering and Research Center 05/18/1981 - 03/04/1988 NARA's Rocky Mountain Region Denver NRGA Building 48 Denver Federal Center West 6th Avenue and Kipling Street Denver CO 80225-0307 1932-05-14 Record group Record Group 115 Records of the Bureau of Reclamation 1889 - 2008 Record group ARC 444 Photograph albums compiled 1903 - 1972 Series ARC 293611 File unit File unit ARC Variant control numbers NAIL Control Number NRG-115-CONSTPHO85006-BC21203 yes Other versions <gallery> File Interior_of_treating_and_filtration_plant _Boulder_City_water_supply _Rapid_sand_filters_and_controls_at_left _-_NARA_-_293652 tif tif File Interior_of_treating_and_filtration_plant _Boulder_City_water_supply _Rapid_sand_filters_and_controls_at_left _-_NARA_-_293652 jpg jpg </gallery> NARA-cooperation PD-USGov NARA TIF images with categorized JPGs Sand filtration | ||||