The South African Railways Class H1 4-8-2T of 1903 is a steam locomotive from the pre-Union era in the Transvaal.In 1902, towards the end of the South African War, the Imperial Military Railways placed thirty-five 4-10-2T tank locomotives in service, built to the specifications of the Reid Tenwheeler of the Natal Government Railways. At the end of the war, these locomotives came onto the roster of the Central South African Railways and became its Class E.