About This Stamp
This issuance features four stamps issued by the U.S. in commemoration of the convening of the 20th Universal Postal Congress in Washington, D.C., from November 13 through December 14, 1989. The designs envision several potential mail delivery methods of the future.
First Day of Issue Ceremony
First Day of Issue Date: November 27, 1989
First Day of Issue Location: TBA