Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1962-Klamath Project. Gerber Dam. Telephoto. Showing detail of a weak spot. Bill Biggs and Smith Ketchum inspecting. Andrew M.Bergloff, Photo. June 6, 1950", from Black Binders Digital reproduction of photograph: KP-1962-Klamath Project. Gerber Dam. Telephoto. Showing detail of a weak spot, Black Binders, Bureau of Reclamation