A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the coxswain's store between 47 and 49 stations below the main flat, looking to port showing the flour bin on the deck and above it is the 10" x 6" battery vent fan No. 2. Storage shelves for food line the compartment and the vertical ladder up to the forward accommodation is on the left. A vertical format negative.