The Taff Vale Railway H class was a class of three 0-6-0T steam tank locomotives designed by Tom Hurry Riches, built by Kitson & Co. and introduced to the Taff Vale Railway in 1884.
They were primarily used on the Pwllyrhebog Colliery Incline, and had special tapered boilers for this purpose.
[1] 193 was used by the NCB at the Tar distillation plant, Wernddu, Caerphilly; it was scrapped in January 1960.
[3] Davies, F. K.; Firth, J. M.; Lucking, J. H.; Thomas, R. E.; Allcock, N. J.; Sterndale, A. C.; Barrie, D. S. M.; Reed, P. J. T.; Mountford, E. R. (April 1966).
The Locomotives of the Great Western Railway, part ten: Absorbed Engines, 1922–1947.