Original photograph: 12.5 x 9 cm, black & white photo, caption under photo reads “P-12-200-4109NA Klamath Project - Oregon Rehabilitation of Klamath Project Office - Specs. 200C-938, Warren Parr, Contractor Overall view of laboratory area prior to painting. November 17, 1975 USBR photo by J. K. Bryant", from Black Binders Digital reproduction of photograph: P-12-200-4109NA Klamath Project - Oregon, Black Binders, Bureau of Reclamation
