No.7. [Middle] Deck, location 7RO. Interior of N.B.C.D. [Nuclear/ Bacteriological/ Chemical Damage Control] Headquaters 2, looking forward and to starboard. The position in the foreground is for a controller/coordinator. The devices beyond it are communications switchboards. Those in the centre have displays reflecting the settings of the engine room telegraphs.

This is part of a series of photographs taken during the final stages of HMS Ark Royal's last major refit which was completed in 1970. The location references are derived from the deck plans in the latest edition of the ship's NBCD book.