This is a beautiful souvenir sheet, issued by Mozambique in 2009, displaying the history of aviation and supersonic planes. Featured aircrafts shown include the 2007 A2 supersonic civil aircraft, 1996 RQ-3 DarkStar "Tier III" unmanned aerial vehicle, 1974 B-1 Lancer strategic bomber, and the 1989 B-2 Spirit stealth bomber, among others. The sheet is Post Office fresh, mint never hinged, and F/VF.