On board the Type 81 general purpose frigate Eskimo (1961) berthed on the south side of No. 3 basin in Chatham Dockyard. The photographer is in the operations room between 42 and 45½ stations on 1 deck looking aft and to port from the starboard side at 43 station showing the commanding officer's R.D.D. & D.CTS JUD(2) visual display unit with an A.R.L. plotting table alongside it. Above the plotting table are a large number of electronic units, telephones and microphones. Under the deckhead is a Zippo control box marked 'Additional reactions'. A clock is reading 03.15. A vertical format negative.