Ключевые слова: backgrounds, bearded man, black, canceled, capital, capitalism, capitalist, collection, communication, communism, concepts, correspondence, drawing, economics, elovek, exploitation, exploiter, finance, former, glory, history, hobby, horizontal, image, karl, letter, macro, mail, man, marx, marxism, marxismleninism, mature, old, only, paper, philately, philosopher, portrait, post, postage, postal expenses, postmark, print, retro, revolution, russia, senior, sociologist, soviet, stamp, theory, union, vintage, wealth,