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Queen Elizabeth, the Queen Mother (wearing the Greville Tiara and the Greville Festoon Necklace) arrives at the Royal Opera House in Covent Garden for a gala performance of Puccini’s Tosca on this day in 1991. A few days ago, we featured the Queen and Queen Mother arriving at the Royal Opera House to view Puccini’s Tosca in 1965, click HERE to see that Flashback.