In October 1974, Austria's Donawitz Steelworks still used steam locos on 70cm and 
standard gauge internal lines. 70cm 0-4-0T 100.15 rests between duties. The 100 relates 
to the engine's nominal horsepower (PS) the 15 denotes the 15th engine of that power 
rating.

Photo & scan Roger Griffiths jrcs@blueyonder.co.uk