This locomotive was built by Hawthorn Leslie in 1912 for Blyth Harbour Commission. Here it became BCC No 2.
In 1971 it was sold to the Yorkshire Dales Railway at Embsay (now the Embsay & Bolton Abbey Steam Railway) for restoration. Here it was given the name Pony.
The locomotive appears to have been moved to the Heritage Centre at County School which was part of a preservation project initiated by the Great Eastern Railway. This later became a base for the Mid Norfolk Railway. It then seams that the locomotive was rebuilt and entered service again in 1994.
The County School project closed in 1996 and the locomotive was sold to a private buyer.
In 1998 the locomotive was sold to the Chatham Historic Dockyard Trust and moved to Chatham where it was renamed Achiles.It ran at Chatham until its boiler certificate expired in 2004 and has not steamed again since.
The current ownership and whereabouts of the locomotive are unclear.
When I was doing the initial research Wikipedia said stated that the locomotive was still at the Historical Dockyard at Chatham. Other sites indicated that it was stored by Moveright International Ltd. Other comments were that the locomotive would be scrapped if the Chatham Historic Dockyard Trust could not find a buyer. To add to the confusion Wikipedia quoted the works number as 2928.