Original photograph: 18 x 13 cm, black & white photo, caption under photo reads "KP-1888 - Klamath Project. Lower cost canal lining. Further experimentation in sealing of joints. Andrew M. Bergloff, Photo. December 8, 1949", from Black Binders Digital reproduction of photograph: KP-1888 - Klamath Project. Lower cost canal lining. Further experimentation in sealing of joints, Black Binders, Bureau of Reclamation