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. The GWS 21 missile launcher crew's shelter between 54 and 55 stations to port of the centre line on 01 deck. The photographer is looking to starboard and aft through the doorway showing three folding seats for the crew. An headset and an alarm bell are on the aft bulkhead An electrical instrument box and an electric fire are on the starboard bulkhead. A vertical format negative.