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 GWS21 L.M.A. between 64½ and 66½ stations on the starboard side of 1 deck. The photographer is looking forward through the open door. A vertical format negative.