An ALCO road-switcher RS-3 diesel-electric locomotive used by E.F. Central do Brasil. Some of these units were refurbished in the 1980's and transfered to the C.P.T.M.. Similar machines were also used by Companhia Paulista de Estradas de Ferro, as the RSC-3 version. This photo was shot in 1976 by Raymond Marsh, from Victoria, Australia, and kindly sent to the E.F. Brasil site.