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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 3c 400th Anniversary of the Coronado Expedition plate proof
3c 400th Anniversary of the Coronado Expedition plate proof

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3c 400th Anniversary of the Coronado Expedition plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1940

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1940
DateAugust 14, 1940
Kindstamp
PlaceUnited States of America
ScottUSA 898
Mediumpaper; ink (violet) / engraving
Regionus
Npm recordnpm_0.242263.15962
DescriptionCertified plate proofs are the last printed proof of the plate before printing the stamps at the Bureau of Engraving and Printing. These plate proofs are each unique, with the approval signatures and date. For postal scholars these plates provide important production information in the plate margin inscriptions, including guidelines, plate numbers, and initials of the siderographer, or person who created the plate from a transfer roll.
Oracle ID36594569

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Source credit: Smithsonian National Postal Museum