sentences:  Three small-wheeled 4-4-0ST locomotives had been built by Robert Stephenson and Company in 1854, but by 1858 they had all been rebuilt as 0-6-0STs and, as such, the last was withdrawn in 1880.The first 0-6-0STs delivered to the Vale of Neath Railway came from the Vulcan Foundry in 1854.Built to the same design as the South Devon Railway Tornado class with water tanks.