Ключевые слова: address, answer, blank, communication, contents, corporate, correspondence, cover, email, enclose, envelope, flat, fold, invitations, letter, letters, mail, message, missive, nostalgia, note, notices, office, open, paper, papers, past, pile, post, postage, postal, pouch, print, receive, saved, seal, send, sheath, sheet, stack, stamp, stamps, stationery, stick, sticky, strip, text, white, write, writing,