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 midship deck store between 58¾ and 61 stations on 1 deck looking forward and to starboard from aft showing the boiler room exhaust fan trunking next to the closed door of the store. A vertical format negative.