A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the wireless telegraphy office between 69 and 72½ stations on the starboard side of the main flat looking to starboard and down into the forward outboard corner. The Powquip teleprinter No. 2 is at the top of the picture with various electrical units below and to the left against the forward bulkhead. A combination safe is in the corner. A recorder reproducer sound unit is under the bench on the right. A vertical format negative.