An U12 G.E. diesel-electric of Companhia Siderúrgica Paulista - COSIPA, working at the switchyards of the Piaçagüera station of E.F. Santos a Jundiaí. Note the original green-and-yellow stripes livery of that locomotive. Photo shot in February 1980 by Alberto H. del Bianco, from São Paulo SP, which kindly sent a copy to these pages.