49 is the classic industial. This ubiquitous design is an 18" inside cylinder Hunslet design that was built by many other builders during the second World War and afterwards. Known as 'Austerities' because they were the product of an austerity programme at the time, they were, and are, widespread throughout the UK. Today it's preserved lines, but in the past it was docks and mines and factories. This one was a genuine wartime product and went into service with the army as No 75062. Subsequently sold to the coal industry, she worked at an opencast (stripmine) site in Nottinghamshire, moving to Northumberland in the late 1940's and aquiring the number 49 on transfer to the Backworth mine system in 1959. Here, she was painted into the lovely light green colour, with lining, and the legend 'National Coal Board' in full on the tank side instead of the usual 'NCB' initials. In this form she is preserved on the Tanfield Railway. The photo was taken in August 2003 and shows the loco in the engine shed at Marley Hill, which was once part of the Bowes Railway system. As the Bowes crossed the NER Tanfield branch at a right angle on the level, the shed and yard connect to the Tanfield line via a sharp curving triangle - unique in UK preservation, I think.