Original photograph: 18 x 13 cm, black & white photo, with "A" written in front in pencil, with "Tule Lake Tunnel Station 247 showing supported section 1-18-41, photo by W.L. Smith" written in back, stamp 1 in back of photo, from Black Binders Digital reproduction of photograph: 913 - Klamath, Black Binders, Bureau of Reclamation