This is a beautiful sheet of 3 stamps, issued by Guinea in 2007, honoring British aviation pioneer & chariman of Marshall Aerospace Sir Arthur Marshall. Also featured are Concorde aircrafts, the Lockheed C-130 Hercules military aircraft, the Cessna 195 airplane, the launching of NASA's Space Shuttle, and the 1924 Olympic Games in Paris. The sheet is Post Office fresh, mint never hinged, and F/VF.