A 35mm roll film negative. On board the Tribal class type 81 frigate Mohawk (1962) in Portsmouth Dockyard. In the conversion machinery room on the starboard side of 4 deck between 45 and 48 stations. The photographer is looking forward and slightly to starboard from the port aft corner showing the door to the compartment. Next to the door is a fire extinguisher and a retransmission unit and on the end of the bulkhead is a pitometer log controller with a junction box above it. Motor generators and shelving are on the right. A vertical format negative.