Postal employees used the "NOT ISSUED" handstamp to mark money order forms or other accountable paper other than postage stamps that were not used. Applying this marking voided the form.
Markings:
"NOT ISSUED"
Medium:
wood (mahogany colored, natural); rubber (red)
Dimensions:
Overall: 6.7 x 4.3 x 2.2cm (2 5/8 x 1 11/16 x 7/8in.)