1960s U.S. Post Office promotional image depicting a woman sorting out whether she needed to use the new local mailbox or the non-local mailbox. Courtesy of the Smithsonian Archives at the Flickr Creative Commons.
1960s U.S. Post Office promotional image depicting a woman sorting out whether she needed to use the new local mailbox or the non-local mailbox. Courtesy of the Smithsonian Archives at the Flickr Creative Commons.