A 2¾ x 2¼ film negative. On board the Type 12 frigate Yarmouth (1959) alongside the South-West Wall in Portsmouth Dockyard. Inside the combined radar office on the port side of 2 deck between 37 and 41 stations. The photographer is looking aft from near the doorway. The office is full of electronics, including distribution and amplifier units. A typed notice is taped to the end of a unit on the left. A radiator is on the aft bulkhead.