Ключевые слова: address, aged, ancient, art, ballet, cancellation, card, chamber, classic, classical, collection, competition, composer, concerto, correspondence, culture, envelope, famous, great, history, hobby, ilich, illustration, ilyich, international, letter, mail, man, message, music, musical, musician, old, opera, paper, person, peter, philatelic, philately, pianist, portrait, post, postage, postal, postmark, postmarked, postoffice, printed, pyotr, republics, retro, russia, russian, send, socialist, soviet, stain, stamp, symbol, symphony, tchaikovsky, union, ussr, vintage, violinist,