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 to port and slightly forward from amidships showing lagged piping with valves, stopcocks and a temperature gauge reading about 55°F on the right. In the centre is a Gilkes pump and a large number of storage boxes is on the deck in the background. A vertical format negative.