The Queen and Duke of Edinburgh have

marked their 73rd wedding anniversary

by releasing a photograph showing them

opening a card from the Duke and Duchess of

Cambridge's children.

The homemade gift made by Prince George,

Princess Charlotte and Prince Louis is

emblazoned with a big 73.

The photograph was taken earlier this week in

the Oak Room at Windsor Castle. The Queen,

94, was a 21-year-old princess when she

married Lieutenant Philip Mountbatten on 20

November 1947.