The South Australian Railways were sold to a federal government agency in 1975.
They are identical to the South Australian Railways 700 class.
They are very similar to the South Australian Railways 930 class.
Work on the first section of this railway was commenced by the South Australian Railways in 1878.
The South Australian Railways 520 class was built for fast passenger and mixed freight work.
In Australia only one system, the South Australian Railways, operated 2-8-4s.
They were ultimately returned to the South Australian Railways where they regained their original road numbers.
Two similar units were imported from Belgium by the South Australian Railways in 1995.
After the opening of the standard gauge, 27 was sold to the South Australian Railways in February 1970 as 874.
In 1925, the South Australian Railways was part-way through an order for a large number of coal wagons.