A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is in the aft crew accommodation space between 103 and 117 stations on the main flat looking forward and to port from the port side at 110 station showing a wooden box and a ventilation fan unit on top of a LEC refrigerator. A control box for the submerged signal ejector is above the fan unit and a triple bunk unit is on the right. A fire extinguisher point is in the lower left foreground. A vertical format negative.