Furniture, address, background, box, business, closeup, communication, container, correspondence, delivery, envelope, hand, information, letter, letterbox, lock, mail, mailbox, mailboxes, mailing, many, message, metal, modern, numbers, object, office, pattern, post, postage, postal, postbox, receive, recipient, row, secure, security, send, service, slot, white, photograph, code, facility, text, coding system, business activity, acquirer, recovery, fastener, writing, book, music, safety, document, rescue, subject matter, symbol, agreement, maildrop, compatibility, berth, undertaking, drop, work, person, token, characteristic
Rows of aluminum mail boxes for concepts such as safety and security, business communication and concepts. Shallow depth of field.