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 diesel generator compartment between 61 and 65½ stations on 1 deck. The photographer is looking to port at the gas turbine uptake bulkhead from 63 station on the starboard side of the compartment. A local instrument panel for the J1 750 KW diesel generator is mounted on the bulkhead as well as cable connectors and a telephone. A vertical format negative.