This is a beautiful set of 5 stamps, issued by Libya in 1983, commemorating the 25th anniversary of the founding of the Inter-Governmental Maritime Consultative Organization (IMCO) by displaying ancient ships. Featured boats shown include an ancient Pharaoh's ship, an ancient Phoenician ship, an ancient Roman ship, a Viking ship, an ancient Greek ship, and a Libyan ship. The set is Scott Catalog #1090-5, and is Post Office fresh, mint never hinged, and F/VF.