This is a beautiful sheet of 6 stamps, issued by Guinea in 2009, commemorating the 40th anniversary of the first flight of the Concorde aircraft. Featured on the stamps are French Air Force test pilot André Edouard Turcat, military pilot Jacques Guignard, and famous international cities Washington, D.C. (United States), the Azores Islands (Portugal), Bahrain (Persian Gulf), Dalls, Texas (United States), Londres (Costa Rica), and Paris (France). The sheet is Post Office fresh, mint never hinged, and F/VF.