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 H switchboard room between 57½ and 60 stations on the port side of 2 deck. The photographer is looking aft from the forward end. Units on the right are labelled 'Feeder breaker H2' and on the left is "H2 switchboard extension". A switchboard manufactured by Whipp & Bourne Ltd of Castleton is on the aft bulkhead together with a clock reading 9.00. A vertical format negative.