A 2¾ x 2¼ film negative. On board the Type 12 frigate Yarmouth (1959) alongside the South-West Wall in Portsmouth Dockyard. Inside the main communications office on the starboard side of 2 deck between 32½ and 35 stations. The photographer is looking aft and to starboard and on the left in Broadcast Bay 3 are teleprinters 1 and 3 (marked 75B) and teleprinters 2 and 4 (marked 50B) are in Bay 4. A duplicator wrapped in polythene is in the foreground.