This is an American Locomotive Company - ALCO RSD-8 locomotive used in the metric gauge lines of Companhia Paulista like the former E.F. Douradense. When these metric gauge lines were supressed, in the mid-sixties, these locos were transfered to the Companhia Mogiana. Photo shot by Sérgio Mártire in Campinas, SP; this copy is courtesy of Hermes Yoiti Hinuy, from São Paulo SP.

A faithful HO model version of this loco can be got at César Sacco Car & Locomotive Works.
Um rigoroso modelo HO desta locomotiva pode ser visto nas páginas da César Sacco Car & Locomotive Works.