Built by Alan Keef Ltd around 1977, this locomotive is powered by a vertical boilered steam engine, part of which was built by H Guy & Co. Ltd for a Victorian launch. It has a single cylinder and chain drive to both axles and was named Thomas by Rev Awdry in 1979.
The tramway that this diminutive locomotive operated on was built in Telford Town Park for the Telford Development Corporation. However, it did not last long and was dismantled and transported to Horsehay in the mid 1980's by TSR members. The tram track is now a major attraction at the edge of Horsehay Pool and since 2015 has a complete circular circuit to operate on. Complete with its own coach the tram the tram steams on all public open days.