About This Stamp
The Postal Service issued the nondenominated definitive Uncle Sam's Hat "H" stamp (33-cent) on November 9, 1998, in Washington, D.C. These stamps, along with the "H" rate Weather Vane stamp, supported the new postage rate that became effective January 10, 1999.
First Day of Issue Ceremony
First Day of Issue Date: November 9, 1998
First Day of Issue Location: Troy, NY