This is a beautiful sheet of 6 stamps, issued by Mozambique in 2009, displaying the history of sea transport. Featured century ships shown include the HMS Astute submarine from the Gulf of Tonkin Incident during the Vietnam War, NS Yamal Russian icebreaker from the Cuban Missile Crisis during the Cold War, USS Harry S. Truman (CVN-75) supercarrier used during the IsraeliÂ?Lebanese conflict, Trafalgar battleship from the British Royal Navy used during the Gulf of Tonkin Incident, the Vaygach nuclear icebreaker used during the Cuban Missile Crisis, and the United States Navy's USS Nimitz (CVN-68) aircraft carrier used during the Israeli-Lebanese conflict. The sheet is Post Office fresh, mint never hinged, and F/VF.