Ключевые слова: aircraft, airplane, aviation, central african empire, charles lindbergh, collection, communication, correspondence, delivery, departure, envelope, flight, history, hobby, letter, mail, mark, nonstop, old, perforation, philately, plane, post, postage, postage stamp, postal, postmark, retro, ryan nyp, spirit of st louis, stamp, transatlantic, transport, transportation, vintage,