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 combined radar office between 36½ and 41 stations on the port side of 2 deck looking to port and forward showing a radar data distributing and displays cabinet for type 993 radar, a visual display unit, a power supply unit and a number of other electronic cabinets against the port side of the ship. A telephone and telephone control box, a microphone and two junction boxes are against the forward bulkhead. A visual display unit is on the deck in the right foreground and beyond it is a work bench with a litter bin on the end. A vertical format negative.