A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the senior rates mess between 42 and 49 stations on the starboard side of the main flat looking aft and to starboard from 43½ station on the port side. A double tier bunk unit rigged for sitting and with lockers above is against the starboard side of the boat. A telephone is above a letter rack at 47 station and a triple berth bunk unit is against the aft bulkhead. A table and cushioned seats are in the foreground. A vertical format negative.