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The stamps illustrated here were never perforated, yet despite the Postal Service’s strict quality control measures, they were sold at the Post Office. Error stamps are fun – they give your collection a unique flavor. Order this 2518a imperforate error today and we’ll send you the normal stamp, 2518, for FREE. Send for yours now and make your hobby time more rewarding.
Since 1978, the USPS has accompanied a change in rate with a non-denominated stamp on which a letter of the alphabet represents the new denomination. Prepared long in advance, the 'F' stamp was ready and waiting for the 1991 rate change. Like the 1988 'E' stamp, the subject of this stamp, a single red tulip, was chosen to match the letter 'F.' Printing contracts were awarded to three different companies. The United States Bank Note Corporation was assigned to produce sheet stamps, the BEP printed coils and booklets, and KCS printed booklets.