This
small but powerful tank engine is a model of the GWR 1101 class of 6
engines built in 1926 and used largely in Swansea Docks. The
0-4-0 wheel arrangement enabled it to negotiate the tight curves found
in docks. The original locos were fitted with a bell, an unusual
feature on UK engines. This was to warn dock workers of its presence in
much the same way that lorries "beep" when reversing today.
