The Queen is pictured at the Drury Lane Theatre in London where she attended a Gala Performance of the musical Hello Dolly! starring Mary Martin. She is wearing the diamond tiara given to her as a wedding present by her grandmother, Queen Mary, in 1947. It had originally been given to Queen Mary by the Girls of Great Britain and Ireland when, as Princess Victoria Mary of Teck, she married the Duke of York, later King George V, in 1893.