Ключевые слова: address, background, blank, box, business, city, communication, concept, container, correspondence, deliver, delivery, document, empty, envelope, green, home, house, incoming, information, isolated, letter, letterbox, mail, mailbox, message, metal, object, office, old, outdoors, paper, people, person, post, postage, postal, postbox, receive, red, retro, send, service, street, symbol, traditional, white, yellow,