Ключевые слова: anniversary, birth, card, collection, collector, communication, connection, correspondence, date, delivery, europe, fontane, germany, history, hobby, image, letter, liebermann, mail, mark, max, novelist, payment, perforation, philatelist, philately, poet, portrait, postage stamp, postman, price, print, relationship, retro, stamp, theodore, vintage, writer, zigzag,