A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the aft torpedo compartment between 108 and 117 stations on the main flat looking to port from 109 station showing two fire extinguishers under the submerged signal ejector. A LEC refrigerator is on the right and a ventilation fan unit and a wooden box are above the refrigerator. A locker marked C containing three canisters of oxygen candle ignition cartridges is on the left. A vertical format negative.