Ключевые слова: communication, concept, contact, country, czech, czech republic, czechia, dirty, education, email, envelope, eu, europe, european, flag, global communication, greeting holiday, greetings from, grunge, history, holiday, holiday souvenir, information, letter, mail, message, message from, old, paper, plzen, post office, postage stamp, postcard, province, regional, scratched, send, send mail, sign, souvenir, stain, stamp, state, symbol, texture, tired, travel, vintage,