The Control room is a mezzanine room above the Plotting Room.
It has glass windows which look straight onto the plotting table so staff could see clearly what was going on.
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Operatives were connected to senior staff by way of this tube which was situated at one end of the desk.
When important information had to be passed quickly the staff spoke into the tube.
History of the Building Personal MemoriesThe role it playedDiary of a Wren Battle of the AtlanticTour the building
