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 helicopter hangar between 49 and 57 stations on the centreline of 1 deck looking to port showing a four drawer filing cabinet, a Thermotank air conditioning unit, a fuse panel, a transformer, a control gear unit and a large hose stowage bracket against the bulkhead. A vertical format negative.