Looking along the length of one of the bays in Number 5 Machine Shop in Chatham Dockyard. Racks for steel rods are on the left and in the centre and beyond the centre rack is a line of steam hammers. On the right is a gas furnace. A Smith-Keighley 2 ton overhead crane is in the upper foreground. A vertical format image. Transparencies numbers PCT3191 and PCT3192 were taken on the same occasion.