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 stabiliser compartment between 52½ and 55 stations on 4 deck looking forward and to starboard at one of the stabilisers showing the finshaft housing the piston rod with the hexagonal tilting shaft above it. Above the tilting shaft are the tilting cylinders. A vertical format negative.