Use the base for 0-6-0 Cabless Tank Engines.
??? [Original] The Heltonsville Heritage Railway (HHR) Revenal class was a class of 0-6-0T steam locomotives designed by the Sodor & Mainland Railway, intended for shunting and short distance freight trains. 19 of these were built between 1864 and 1888, and were withdrawn from service in 1957 and the first 5 were preserved to be fitted with a cab in 1959.
