In 1902, the Cape Government Railways placed its last ten 7th Class Mastodon type steam locomotives in service on the Cape Eastern System. In 1912, when all these locomotives were assimilated into the South African Railways, they were renumbered and designated .Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 8, 12, 15, 39 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)
