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 forward 4.5" ready use magazine on 1 deck between 41 and 41½ stations. The photographer is looking aft from the 4.5" handing room and crew shelter. A stowage rack for the shells has ten cartridge containers above it and another ten below it. A vertical format negative.