Prototype: German Federal Railroad (DB) class 41 steam locomotive with a new design high-efficiency boiler and a type 2´2´T34 oil tender as the locomotive and tender looked in Era III. Highlights Completely new tooling. Highly detailed full metal construction. Frame superstructures, boiler, etc. constructed of die-cast zinc. A smoke generator with smoke exhaust and cylinder steam synchronized with the wheels, and a steam whistle included. Operating sounds synchronized with the wheels and controlled by the load. Smoke box door and dome covers with many original details, can be opened. Headlights with a light color correct for the era and warm white LEDs. Two-color fire box flickering light. Running gear lights included. Engine cab lighting included. mfx decoder for operation with AC power, DC power, Märklin Digital, or DCC. Valve gear switchover in 3 steps (forward, reverse, continuous operation) with a servo motor. Tender includes a remote-controlled Telex coupler.