The type 81 general purpose frigate HMS Zulu (1962) in No. 2 dry dock at Govan, Glasgow in December 1963 during the final stages of building. The photographer is on the floor of the dock to port of the keel looking to starboard showing the port rudder between 88 and 94 stations. A man in overalls is pointing to the rudder and a three feet scale stick is fixed to it. A vertical format negative.