USPS
A découvert – USPS Definition
(French) Universal Postal Union term: (1) An item with no envelope or packing found ("discovered") in the mail. (2) An item for a particular country of destination inserted in a dispatch for an intermediate country.
A découvert
(French)Universal Postal Union term: (1) An item with no envelope or packing found (“discovered”) in the mail. (2) An item for a particular country of destination inserted in a dispatch for an intermediate country.