Sealion (1959). On top of the bridge fin between 59½ and 76 stations.

A roll film negative. On board the submarine Sealion (1959) towards the end of a long refit at Portsmouth. The photographer is on top of the bridge fin between 59½ and 76 stations looking down into the navigating flat from the starboard side of the bridge top showing the adjustable platform. The retractable azimuth repeater is on the right. A vertical format negative.