This very nice HO gauge locomotive by Roco is 04191 B a SBB Be 4/6 electric locomotive in black livery, it has running number 12320. The Be 4/6 was a bogie locomotive operated by the Schweizerischen Bundesbahnen (Swiss Federal Railways) (SBB) on the Gotthard Railway along with the Be 3/5, The design was based on the prototype Be 4/6 12302.