The Bank of England clearly has a sense of humour.
A spokesman said:
The Bank of England is very grateful to Her Majesty for her visit today and for taking such an interest in its work.
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The Government is to choose which scheme to back after a review of the UK's airport capacity. Here are the three shortlisted options.
The government's long-awaited decision on which scheme - Heathrow or Gatwick - should get the go-ahead will finally be announced later.
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