{Postal card}, or {Post card}, a card sold by the government
for transmission through the mails, at a lower rate of
postage than a sealed letter. The message is written on
one side of the card, and the direction on the other.
{Postal money order}. See {Money order}, under {Money}.
{Postal note}, an order payable to bearer, for a sum of money
(in the United States less than five dollars under
existing law), issued from one post office and payable at
another specified office.
{Postal Union}, a union for postal purposes entered into by
the most important powers, or governments, which have
agreed to transport mail matter through their several
territories at a stipulated rate.