Chasewater Light Railway - 'Teddy'. Visiting locomotive - Teddy - is one of the smallest standard gauge locomotive built. It is a Peckett of Bristol 'Yorktown' class 0-4-0ST No. 2012 of 1941 and used at the Royal Ordnance factory at Creakmoor, Dorset. It was for a time with the late Reverend Teddy Boston at Cadeby and is now privately owned and on hire to the National Railway Museum where it gives rides. It was visiting Chasewater for the winter gala.