Description: (This picture comes by courtesy of the effects of Jean Selina Morland - 1914 to 2004). This photograph appears to be one of a pair (the gentleman in the bowler looks to be the same person in both - see also DCHQ504770) and they show a horizontal stationary steam engine and the boilers that supplied the steam for the same. Mark Higginson of Derby Industrial Museum offers the following suggestion:-'The engine - by Tannatt Walker & Co of Leeds - is a Compound. The steam supply is the lagged pipe descending vertically at the left-hand end, below which can be seen the high and low pressure cylinders of different diameters. There is no obvious drive from the engine and I can only guess that power is transmitted via what appears to be a sort of rocker beam that is just visible in the middle of the engine just to the left of the bowler-hatted man. Certainly, the gap in the stone engine bed and the manhole cover suggests there is something there. If correct this means the engine is possibly driving something directly underneath or that driveshafts continue under the flooring. Additional steam pipes are suspended from the wall (of vitrified brick for cleanliness and durability) and these (plus the number of boilers in the other picture) suggest that the engine is just part of a larger plant. Quite what the large wooden area in the foreground is I don't know, but it could be simply covering the underworks for maybe another engine or piece of equipment that has yet to be installed.' (If anyone can help further with the identification or location of these, please let us know via the Picture the Past web-site).