High Quality Content by WIKIPEDIA articles! In 1902, towards the end of the Second Freedom 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 were transferred to the Central South African Railways as Class E, where most of them were converted to 4-8-0T+T tank-and-tender locomotives. In 1912, when the South African Railways was established, these converted locomotives were designated Class 13.