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 main motor room between 92 and 103 stations below the main flat looking to port from 95 station showing the end of the low power motor generator on the right and the main motor cooler on the left. The speed indicator control box for the port main motor is in the left foreground next to the ladder which leads up to the main flat. A vertical format negative.