On board the submarine Walrus (1959) alongside the fitting out berth at Scott's Shipbuilding & Engineering Co Ltd shipyard at Greenock, on the Clyde. The photographer is in the aft accommodation space between 103 and 108 stations on the main flat looking to port and slightly forward showing the open hatch in the bulkhead at 103 station. Above the hatch are six light switches. In the port forward corner of the space is the CO² absorption unit and next to it are a fire extinguisher and a Salvus fire salvage equipment locker. Two lockers labelled 6 short D.Vˢ. are against the port side at high level. A vertical format negative.