The H Rate USPS Stamps, 27 on one sheet and 36 on the second sheet. Sheets consist with a 1 cent make-up rate, issued in the United States between 1991-2000. These multi-color stamps feature a patriotic theme and are in mint never hinged quality. The stamps are ungraded and uncertified, making them a unique addition to any stamp collection focusing on United States postage. Each sheet contains stamps with the "H" rate designation, representing the cost of mailing letters within the country during that time period.