G&SWR 131 and 137 Class 4-4-0

The Glasgow and South Western Railway (G&SWR) 131 Class and 137 Class were two closely related classes of 4-4-0 steam locomotive designed by Peter Drummond, of which a total of 12 were built in 1913-15 by the North British Locomotive Company (NBL) at its Queens Park works and by the G&SWR at its own Kilmarnock works. Originally built as the 131 and 137 classes, as a result of renumbering they became known as the 331 and 325 classes in 1919, before passing to the London Midland and Scottish Railway (LMS) on its formation in 1923, where they were given power classification 3P.

G&SWR 131 and 137 Class 4-4-0

The Glasgow and South Western Railway (G&SWR) 131 Class and 137 Class were two closely related classes of 4-4-0 steam locomotive designed by Peter Drummond, of which a total of 12 were built in 1913-15 by the North British Locomotive Company (NBL) at its Queens Park works and by the G&SWR at its own Kilmarnock works. Originally built as the 131 and 137 classes, as a result of renumbering they became known as the 331 and 325 classes in 1919, before passing to the London Midland and Scottish Railway (LMS) on its formation in 1923, where they were given power classification 3P.