Ключевые слова: 1980s, 1981, aged, bering, captain, collect, collection, commander, communication, country, discovery, envelope, explore, explorer, global, great, historic, history, international, isolated, known, leader, mail, man, mark, navigator, navy, observer, ocean, old, people, person, philatelic, philately, portrait, post, postage, postcard, postmail, retro, russia, russian, seafarer, stamp, symbol, unique, ussr, vintage, vitus, world,