On board the Type 81 general purpose frigate Eskimo (1961) in No. 3 basin in Chatham Dockyard during her 1971-1974 modernisation. The photographer is in the main communication office between 41 and 45 stations on the port side of 2 deck looking forward and slightly to starboard showing the large control circuit exchange unit against the forward bulkhead. An operator's position alongside the CCX unit is equipped with a B41 CAZ unit, a No. 10 MCO - C3 control unit and a morse key. A position against the starboard bulkhead also has a No. 10 MCO control unit and a morse key but has a completely different type of unit above the desk. A clock is reading 09.46. A vertical format negative.