The South African Railways Class 3 4-8-2 of 1909 is a steam locomotive from the pre-Union era in the Natal Colony.In 1909 the Natal Government Railways placed the world’s first true Mountain type locomotive in service when five Class B 4-8-2 tender locomotives were commissioned. Twenty-five more were placed in service in 1911. In 1912, when they were assimilated into the South African Railways, they were renumbered and classified as Class 3.