H0e steam locomotive 399.02 of the Austrian Federal Railways.

* Precise realization of the steam locomotive 399.02. Operational condition: 1980s.

At the beginning of the 20th century, powerful narrow-gauge locomotives with "Stütztender" ("supported tender") of the class Mh were procured for the mountainous Mariazellerbahn lines. After only a few years, the high volume of passengers led to the electrification of the lines between Mariazell and Gusswerk. This was also the reason why the steam locomotives from 1911 on were only used on the non-electrified branch lines of the Mariazellerbahn from Offer-Grafendorf to Gresten - the so-called "Krumpe." As a result, the Mh locomotives, which had been redesignated by the ÖBB as class 399 in 1953, also found use on other Austrian narrow-gauge railways. From about 1970 on, the ÖBB transferred most of the vehicle fleet of class 399 to the Waldviertel, and until the 1980s, the locomotives managed a large part of the traffic there.