P12-201-4633NA Klamath Project, OR-CA. Photo shows how gap was maintained between casing section welds to increase weld penetration; April 10, 1979; USBR photo by D.J. Kline
Original photograph: 13 x 10 cm, black & white photo, caption under photo reads "P12-201-4633NA Klamath Project, OR-CA Butte Valley Test Well #2 -- Construction. Photo shows how gap was maintained between casing section welds to increase weld penetration; Apr. 10, 1979; USBR photo by D.J. Kline", from Black Binders Digital reproduction of photograph: P12-201-4633NA Klamath Project, OR-CA, Black Binders, Bureau of Reclamation