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 just to port of the keel looking aft and to starboard from 80 station showing the propeller shaft, the 'A' bracket, five bladed propeller and twin rudders. A man in overalls is holding a three feet scale stick against on of the propeller blades. A vertical format negative.