Construction locomotive of the St. Gotthard Railway Steam locomotive E 2/2 No 11 St. Gotthard Railway GB 1881 This small locomotive uses the Brown system of lever-drive with elevated cylinders. The British engineer Charles Brown was the major founder of the Swiss Locomotive & Machine Works (SLM). He designed this special driving arrangement to reduce the width of the locomotive immediately above rail level. This type of construction was particularly suited for construction and factory locomotives as well as steam tramways. SLM 14.7 t 55 kW 2 cylinders saturated steam 12 bar 50 km/h restored by CFF in operation 1881-1934