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 enclosed bridge between 40½ and 43½ stations on 01 deck. The photographer is looking to port and aft from the port side of the pelorus. The sonar type 1078 repeater is in the right foreground and the commanding officer's chair is in the left foreground. A chart table is on the left with a navigation information board above it. A navigation radar visual display unit is next to the chart table. The port bridge wing door is on the right. A vertical format negative.