They had tenders similar to the SAR Torpedo type, but with plate frame bogies instead of cast frame Buckeye bogies. A single RR 19C class, no. 336, was built by Henschel in 1953 as a condensing locomotive. After a collision in 1956, it was rebuilt into a non-condensing 19th Class and re-entered service in 1958. The condensing tender was rebuilt to a Torpedo tender by mounting a tank and coal bunker, supplied locally in Bulawayo, on the frame. This rebuilt tender is the one paired with no. 330 which is preserved in the Bulawayo Railway Museum. By June 1975, only three were left in service, all allocated to the Bulawayo shed, but with two out-stationed at Mafeking in South Africa. Nkana Mines Two were built by Henschel for the Nkana copper mines in Northern Rhodesia in 1952, numbered 107 and 108. In 1967, they were sold to a Rhodesian scrap merchant who, in turn, sold them to Rhodesia Railways where they were overhauled and placed back in service in 1968 as RR 19B Class no. 337 and 338. Wankie Colliery In 1955 four more without superheating and numbered in the range from 1 to 4 were built to the design of the Class 19D by NBL for the Wankie Colliery in Southern Rhodesia. Industrial As they were being retired, several Class 19D locomotives were sold into industrial service. By the late 1980s, some of them were already at work at Dunn's, Saiccor, Loraine Gold Mine and Bamangwato Concessions Ltd. (BCL) in Botswana, and more were to follow. As late as 2011, two Class 19Ds which had been used on the Vaal Reefs Gold Mine in the 1980s until they were retired and dumped at Jan Kempdorp where they stood unprotected for about twenty years, were bought by BCL Selebi-Phikwe. The locomotives, possibly numbers 2678 and 2689, were to be overhauled for use by the mine there, which was still operating ex-SAR Class 19D and ex-RR 19th class locomotives. By June 2012, the first of these two was put into service. However the mine closed in late 2016 putting the entire fleet out of work and now up for sale (December 2018). Red Devil predecessor As a trial run before SAR mechanical engineer David Wardale was granted permission to proceed to rebuild a Class 25NC locomotive to the Class 26 Red Devil in 1979, he was allowed to carry out modifications