On board the Royal Navy Type 81 general purpose frigate Tartar (1960) while at sea off Barbados during exercises involving the 7th and 8th Frigate Squadrons. The Tartar is a unit of the 8th Frigate Squadron (West Indies). The photographer is on the starboard side of the quarterdeck just abaft the hangar looking to port showing the 4.5 inch gun mount trained to port. The gun has just fired and the officer of the gun is leaning against the gun shield looking through binoculars in the direction of the shoot.