South African Class NG15 2-8-2
The South African Railways Class NG15 2-8-2 is a class of narrow-gauge steam locomotives. In 1931, three narrow-gauge Class NG15 locomotives with a 2-8-2 Mikado type wheel arrangement, similar in design to the existing Class Hd and Class NG5 locomotives, were acquired by the South African Railways for the Otavi Mining and Railway Company in South West Africa.
Source: Wikipedia — South African Class NG15 2-8-2 (CC BY-SA 4.0)