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, to starboard and up at the deckhead from just inside the door showing flexible armoured hoses and conduits running across the deckhead. The conduits run through the bulkhead but the armoured hoses run down the starboard bulkhead and terminate in a cylindrical block which is fed by another armoured hose coming up from below. One branch of the armoured hose is led to a 10" W.G. glass tube. A vertical format negative.