Ключевые слова: 1963, agitation, antique, art, astronautics, blue, campaigning, canceled, cancellation, collecting, collection, commemorative, communication, correspondence, cosmonaut, ddr, deutsche demokratische republik, envelope, friendship, gdr, german, german democratic republic, germany, gherman, gherman titov, hobby, letter, mail, mark, old, paper, people, philately, pioneer, portrait, post, postage, postal, postcard, postmark, postmarked, retro, russian, soviet, space, stamp, titov, vintage, visit, west germany,