The Type 12 frigate HMS Berwick (1959). In the cooling machinery compartment between 31 and 35½ stations on the starboard side of 4 deck.

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 cooling machinery compartment between 31 and 35½ stations on the starboard side of 4 deck looking forward and to starboard from 34 station showing a brine making tank, pump and associated pipework (the photographer refers to this as an eductor).