South African steam railmotors by philipmartin Sun Aug 10, 2014 6:47 pm South African Railways Clayton Railmotor no. RM11 at Salt River, Cape Town. 1929. Wiki. Cape gauge, (3ft. 6in.,) vertical boiler. Username philipmartin Posts 3652 Joined Sun Jul 13, 2008 3:42 pm Location Pennsylvania, USA