[1][2] Six 2-6-0 Mogul type tender goods locomotives were delivered to the Cape Government Railways (CGR) by Beyer, Peacock & Company in 1879, numbered in the range from W27 to W32 for the Western System.

The part of the running boards directly above the cylinders and valve gear and even the smokebox front were also inclined to the same degree, which gave the locomotive its most obvious distinguishing features.

[1] At the time these locomotives entered service in 1879, the Western System mainline from Cape Town was completed to Montagu Road, which had been reached in 1877, and work on the section to Beaufort West was completed as far as Fraserburg Road.

They saw service on all parts of the Western system, working out of Cape Town deeper into the Karoo as the line was being extended.

The line was opened to Beaufort West on 5 February 1880 and the connection with the Midland System was made at De Aar on 31 March 1884.

It was considered obsolete by the SAR, designated Class 01 and renumbered by having the numeral "0" prefixed to its number.

Holland states that four of these locomotives, numbers W27, W28, W30 and W31, by that time renumbered to 43, 44, 46 and 47 respectively, were sold to the Nyasaland Railways at some stage between 1904 and 1912.