The Mosbach–Mudau engines Nos. 1 to 4 (or Baden C) were six-wheeled, narrow gauge, tank locomotives designed for the metre gauge line from Mosbach to Mudau.
History.
The four locomotives were built in 1904 by the firm of Borsig. The frame was designed as a water tank. Due to the steep inclines it had a large boiler, the boiler barrel consisting of two shells.
It had an Allan valve gear with trick valves. The connecting rods drove the third coupled wheels. The loco had an 
Exter counterweight brake for the engine and a Körting vacuum brake for the train. This was probably replaced in 1926 by a Westinghouse compressed-air brake. When the Deutsche Reichsbahn took over the operational running of the state-owned by privately operated line from the "Deutsche Eisenbahn-Betriebsgesellschaft", a subsidiary of the firm of "Vering &amp; Waechter" who had built the line, these engines were incorporated into their fleet as numbers 99 7201 to 99 7204. In 1964/1965 the steam locomotives were retired and replaced by diesel locomotives. Until then they had managed all the traffic, no other locomotives were even employed in a temporary role.
Preserved.
All the locomotives have been preserved until the present day.
References.
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