A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is by the senior rate's washplace between 73 and 75 stations on the port side below the main flat looking aft and to port showing a wash hand basin with a mirror and two small lockers numbered 7 and 8 against the port side of the boat. In the top right is the cover over the 'D' vent line bulkhead valve. A vertical format negative.