G&SWR 58 Class

The original six examples of this class were designed by Patrick Stirling for the GSWR and were built by Kilmarnock Locomotive Works (Works Nos. between 37 and 46) in 1866 and 1867. They were numbered 58, 94 and 99-102.^[1] The members of the class were fitted with a Stirling cab and a Giffard injector, domeless boilers and safety valves over the firebox, which were later replaced by those of Ramsbottom design over the centre of the boiler following a boiler explosion at Springhill in 1876.^[2] Two further series of ten locomotives each were built by Neilson and Company in 1867 and 1869, (Works Nos. 1317-26, and 1443–52), numbered 160-169 and 172-181.

The locomotives were withdrawn between 1890 and 1922.