South African Class 18 2-10-2
The South African Railways Class 18 2-10-2 of 1927 was a steam locomotive. In December 1927 and January 1928 the South African Railways placed two Class 18 three-cylinder steam locomotives with a 2-10-2 Santa Fe type wheel arrangement in service on the Witbank-Germiston coal line.
Source: Wikipedia — South African Class 18 2-10-2 (CC BY-SA 4.0)