Ключевые слова: classified, communication, confidential, confidentiality, document, forbidden, graphic, grunge, icon, illustration, important, information, ink, isolated, letter, model, note, paper, paperwork, post, postage, postcard, postmark, print, privacy, private, red, restricted, rubber, secrecy, secret, sing, square, stamp, strict, symbol, text, top, vintage, watermark,