A roll film negative. On board the Tribal class type 81 frigate Mohawk (1962) in Portsmouth Dockyard. She was in a dry dock from 21 March to 11 April 1972 when she moved to the South Railway Jetty. In the operations room between 41½ and 45½ stations on 1 deck. The photographer is looking forward from the starboard side showing a screen on the left with instruments on both sides of it. A RDD & D CTS control box and a relay cabinet are on the right. A communications station with a clock, three telephones and two intercom units is on the forward bulkhead. A vertical format negative.