On board the Type 12 frigate HMS Berwick (1959) alongside the south wall in No.3 basin at Chatham Dockyard, near the end of her modernization which commenced 4 December 1967 and completed 4 June 1971. The photographer is in the operations room between 31¼ and 35½ stations on 1 deck looking aft and to starboard from 33 station on the starboard side showing the anti-submarine warfare officer's plotting table and consoles on the left against the ship's side. Against the aft bulkhead are two telephone connection boards, an echo sounder, a type 162 sonar receiver/transmitter and an electric fire.