This is a beautiful souvenir sheet, issued by Guinea in 2009, honoring aircraft manufacturer and founder of the Zeppelin Airship Company Ferdinand von Zeppelin. Featured on the sheet are the German aircraft carrier Graf Zeppelin, the aircraft catastrophe in Saint-Amand-Montrond, France, and a brief written history of the Zeppelin airships. The sheet is Michel catalog #6693/Bl.1709, and is Post Office fresh, mint never hinged, and F/VF.