Although the mailbox is over 100 years previous (and the letterbox even older), it continues to evolve. In 1939, the vertical mailbox was invented by enterprise companions Saulia O. Florence and Herbert Dix, based on the Nationwide Postal Museum. The 2 males had met whereas working for a mailbox manufacturing firm that closed through the Despair. Opening their very own firm, the Florence Company, they got here up with a brand new centralized mailbox for giant buildings. The design allowed mail carriers to shortly ship mail to a number of packing containers directly by opening one massive door on the highest of the mailbox. Mail recipients retrieved their mail from a smaller door on the opposite facet that solely they may entry.
One other newer invention improves on the previous RFD Joroleman-style mailbox, retaining the domed roof, however making the field vertical as an alternative of horizontal. This mannequin, known as the Bonbobi, is ADA compliant as a result of it permits for unobstructed wheelchair passage down the sidewalk. Mailboxes will proceed to vary, to fulfill altering wants.