This is a beautiful set of 6 stamps, issued by St. Thomas & Principe in 1979, commemorating the history of navigation. Featured ships include Vasco da Gama's carrack sailing ship "Sao Gabriel" from 1497, a 1460 Caravela Latina medieval ship, a Fusta ship from 1540, a Caravela Redonda from 1512, and a 1560 Portuguese galleon sailing ship. The set is Scott Catalog #534-9, and is Post Office fresh, mint never hinged, and F/VF. Click here to visit my eBay Store for other auctions and Direct Sale items: