This is a beautiful souvenir sheet, issued by Guinea in 2008, displaying lighthouses and shells. Featured are the Palau Nautilus sea shell, the Turban shell, Cape Recife Lighthouse in South Africa, Vexillum Acromiale sea shell, Cloth of Gold Cone sea snail, the Cape Columbine Lighthouse in South Africa, and a brief written description of lighthouses. The sheet is Michel catalog #5491/ Bl. 1507, and is Post Office fresh, mint never hinged, and F/VF.