On board the Type 12 general purpose frigate Plymouth (1959) alongside the south side of number 3 basin in Chatham Dockyard at the end of a modernization which commenced in August 1966. The ship is berthed starboard side to the quay. The photographer is in the passageway at 25-28 stations on 2 deck looking forward towards the gun bay. The partially open watertight door to the gun bay is in the left background and a transformer is against the gun bay. The emergency diesel generator is in the left foreground. An open hatch leading down to 3 deck is in the lobby and the door to the transmitting station is on the right. A vertical format negative.