Longitudinal profile of the Mayrink-Santos branch of E.F. Sorocabana. Graphic from the report A Eletrificação da Estrada de Ferro Sorocabana ("The Electrification of the E.F. Sorocabana"), paper presented by D.M. Muylaert to the American Institute of Electrical Engineers in Abril 1943; this copy is courtesy of José Agenor Siqueira Ferreira, from Machado MG.