A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the commanding officer's cabin between 56 and 58½ stations on the port side of the main flat, looking to port and up from the doorway showing the panelling against the port side of the boat. The panelling hides a Type 2007 pre-amplifier (port), a distribution box C3C F2, a radiator socket distribution box C4E F7 an electric fire, a SRE circuits loudspeaker unit and a distribution box A62 C/3 F1 above it. A vertical format negative.