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 radar office between 66 and 69 stations on the starboard side of the main flat looking forward and to port showing the door with the E.H.T. control switch, radar type 1001(2) junction box No. 4 and radar type 1001(2) junction box 7 for control relays and mast height indicators to starboard. Against the port bulkhead are a telephone handset, a dimmer switch and a visual display unit for radar range display and range calibrator.