On board the type 81 general purpose frigate HMS Tartar (1960) in Portsmouth Dockyard between November 1973 and April 1974 during a refit. The photographer is in the sonar control room between 41 and 43 stations on the starboard side of 1 deck looking aft from forward showing a main starter, a training retransmission unit, an automatic emergency lantern, a fire extinguisher, a clock reading 2.52 and consoles R and S against the aft bulkhead. The door to the operations room is closed. A vertical format negative.