KRM-BEL-OO-R-BLACK Bellerophon' 0-6-0WT Black Steam Tank LocomotiveBellerophon was one of six almost identical locomotives built for the Haydock Collieries between 1868 and 1887, Bellerophon herself being completed in 1874. Unusually for the time the locomotives had outside motion and a further revolutionary aspect was the use of piston valves, nearly two decades before this type of the valve gear is generally recognised as being in use. Bellerophon, being the only survivor of the class, is therefore unique, not only