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 enclosed bridge between 40½ and 43½ stations on 01 deck. The photographer is looking forward and to port from abaft the commanding officer's chair. A chart table with drawers and cupboards under and a visual display unit are on the left. A sonar type 1078 repeater unit is on the extreme right and a communications switch panel is in the centre of the forward bulkhead.