A 35mm roll film negative. On board the commando carrier Hermes (1953) in Devonport Dockyard in June 1973 towards the end of her conversion from a fixed wing aircraft carrier to a commando carrier. She recommissioned after conversion on 18 August 1973. The photographer is in an unidentified electronics compartment and negatives numbers PM3104/25, PM3104/26, PM3104/27, PM3105/28 and PM3105/29 were all taken in the same compartment. Power supply units are on the left and between these units and the door to the compartment are nine identical electrical boxes mounted on a steel framework.