This is a beautiful sheet of 4 stamps, issued by Gambia in 2011, commemorating the visit of President of the United States of America Barack Obama and First Lady of the U.S. Michelle Obama to the United Kingdom. Featured on the stamps are Prince William with Kate Middleton, Queen Elizabeth II with Prince Philip, the Dean of Westminster Abbey John Hall, and Prime Minister of the UK David Cameron with wife Samantha Cameron. The sheet is Post Office fresh, mint never hinged, and F/VF.