postage due stamp

postage due stamp

n
a stamp affixed by a Post Office to a letter, parcel, etc, indicating that insufficient or no postage has been prepaid and showing the amount to be paid by the addressee on delivery
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
(possibly due to the handwriting looking like Rome), before being returned to the address with a number of Italian postage due stamps affixed.
Finally, a sheet of Postage Due stamps of 1928-33 Postage Due stamps.