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 auxiliary machinery and gland space (thrust block compartment) between 103 and 107 stations below the main flat looking aft and to starboard from 104 station on the port side showing a Harrison lathe in the foreground. The starboard propeller shaft and turning gear are close to the side of the boat with an air bottle above them. Storage units and a large air bottle are against the aft bulkhead at 107 station.