This is a beautiful souvenir sheet, issued by Guinea in 2007, honoring British aviation pioneer & chariman of Marshall Aerospace Sir Arthur Marshall. Also featured are the Concorde plane, the Cessna Model 404 Titan II aircraft, and the Lockheed L-1011 Tristar Jet Airliner, as well as a brief written biography of Marshall. The sheet is Post Office fresh, mint never hinged, and F/VF.