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. Mohawk (1962). In the electronic warfare equipment room between 55 and 56¼ stations on the centreline of 01 deck. The photographer is looking forward and to starboard from just inside the door. A vertical format negative.