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 quartermaster's lobby and ABC (atomic, bacteriological and chemical) undressing station between 65 and 66½ stations on the port side of 1 deck, looking aft and to port from the forward end showing some pipework and the self-closing door. A vertical format negative.