Originally posted by tim60 Very interesting. In the early 1920's there was a class of 4-8-4 on SAR that looked very similar - the 500 class, of which 10 were built, for the same heavy passenger and freight services through some steep, but not high hills near Adelaide. They were the first class designed by a US chief locomotive engineer - Webb, although they were built in England.
I always enjoy enjoy reading about the history of locomotives, I appreciate you taking a look and adding this information.