On board the type 81 general purpose frigate HMS Tartar (1960) in Portsmouth Dockyard between November 1973 and April 1974 during a refit. The photographer is looking down and to starboard from the roof of the enclosed bridge at 02 deck level showing the 20 mm oerlikon gun at 41 station. Liferafts are on the right. The ship is berthed starboard side to the South Railway Jetty. A vertical format negative.