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 Zone K switchboard room between 64 and 66 stations on the starboard side of 2 deck looking aft from forward. The clock on the aft bulkhead is reading 2.37. A vertical format negative.