Britain's Royal Mail is celebrating Prince William and Kate Middleton's wedding ceremony with a new set of stamps that attribute their official engagement portraits.Two images of the couple taken by vogue and celebrity photographer Mario Testino will be printed on the set of commemorative stamps. The collectibles have been accredited by William and will be launched on Thursday, Queen Elizabeth II's birthday.
William has been featured on stamps twice in advance of -- to mark the Queen Mother's 100th birthday on Aug. 4, 2000, and three a long time later on to mark his 21st birthday.
