The formal image - on the 1.10 stamp shows the couple in the palace's Cornwall Room.
Commuters and tourists got a special royal souvenir with the release of limited edition travelcards bearing the image of Prince William and Kate Middleton.Produced with the approval of the monarch and involvement from William, they feature William and Kates official engagement portraits. The formal image - on the £1.10 stamp shows the couple in the palaces Cornwall Room.There will be around 750,000 Oyster cards (as the travelcard is known) available, featuring the words, To commemorate the marriage of Prince William of Wales and Miss Catherine Middleton 29 April 2011.