The listing, US Scott #CVP31a, Single 1992 Variable Postage 29c FVF MNH has ended.
US Scott #CVP31a, Single 1992 Variable Postage 29c FVF MNH
in black mount from album page.
This is what is written in the USPS Commemorative Album I am listing from:
"this variable-denomination stamp is designed for the automatic vendors called Postage and Mailing Centers (PMC's) now being test marketed in five Postal Service Divisions. PMCs weigh an item, determine the postage for the desired level of service, and print the denomination on the stamp."
If you check e-bay you will find it with different denominations