 GWR 645 Class

The GWR 645 Class was a class of 0-6-0 saddle tank locomotives designed by George Armstrong and built at the Wolverhampton railway works of the Great Western Railway (GWR).Thirty-six were constructed between 1872-3, of which three were built for the South Wales Mineral Railway (SWMR), two for the Carmarthen and Cardigan Railway (C&CR) and the remainder for the GWR.