Original photograph: 21 x 16 cm, black & white photo, with "A" written in front in pencil, caption under photo reads "#205 - U.S.R.S. Bridge No.4 across Main Klamath Canal. October 24th, 1907", from Brown Album, reorganized by Elaine Roggensees, 1987 Digital reproduction of photograph: U.S.R.S. Bridge No.4 across Main Klamath Canal, Brown Album, Bureau of Reclamation