A 2¼ square film negative. The Type 12 frigate Yarmouth (1959) in a dry dock in Portsmouth Dockyard. A general view of the stabilizer in the extended position between stations 55 and 56 on the starboard side, taken from the bottom of the dock. A man wearing a safety helmet, duffle coat and wellington boots is standing on the floor of the dock holding up a scaled description board under the stabilizer.