DR series 99.331
In the series 99331 , the ordered German Reichsbahn of the Muskau forest railway acquired (WEM) narrow gauge tank locomotives one. With the exception of the Diana (99 3312), these were brigade locomotives that the German Army Field Railway had procured from 1914 to 1918. The locomotives were classified as 99 3310, 3311 and 3313–3318.