German Federal Railroad class 74. Reverse unit. 3 axles powered. 1 traction tire. Coupler hook on front with pre-uncoupler, RELEX coupler on rear. Length over buffers 13.5 cm (5-5/16").
These locomotives were used by the German Federal Railroad in suburban commuter service and pulled passenger trains. During the German State Railroad period they operated on the Berlin S-Bahn routes, before the latter were electrified.