Common · Knowledge
first day sheet
Sheet issued by a postal administration with at least one stamp affixed to the front, cancelled by a first day issue postmark
Text: Wikidata, CC BY-SA 4.0. ·
Related cards
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first day cover
Envelope or card with a stamp postmarked on its date of issue
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Postage stamp
Small piece of paper that is purchased and displayed on an item of mail as evidence of payment of postage
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First day of issue
Postmark on a cover, postal card or stamped envelope franked on the first day the issue is authorized for use
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Sheet of stamps
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stamp edition
Issue of a single stamp or a set of stamps on the same day; the set often consists of stamps with similar features but different values
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official stamp
Type of stamp that is used exclusively for the franking of official mail