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 avcat pump space between 57 and 59 stations on the centreline of 4 deck looking to starboard showing the motor, manufactured by W H Allen Sons & Co Ltd of Bedford, and the pump, manufactured by Drysdale & Co Ltd of Yoker, on the deck close to the starboard bulkhead. A telephone is against the starboard bulkhead and a cable stowage bracket is against the forward bulkhead. A vertical format negative.