The type 81 general purpose frigate HMS Zulu (1962) alongside the Alexander Stephen & Sons Ltd fitting out berth at Linthouse, Glasgow during the final stages of building prior to 16 April 1964. The photographer is in the main wireless office and main signal office between 41 and 45 stations on the port side of 2 deck looking aft showing operator's positions against the port side of the ship. The nearest position is equipped with two B40 CAY units, the next desk has two teleprinters, the third desk has a morse key a B40 CAY unit above it and the remianing three desks have teleprinters on them with various receivers and units above them. On the left are a desk and bench with a control circuit exchange unit above. Against the aft bulkhead are a CUJ 692 unit in the port corner with a CUJ/2 and test rack unit next to it.