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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 5c Centenary International Philatelic Exhibition plate proof
5c Centenary International Philatelic Exhibition plate proof

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5c Centenary International Philatelic Exhibition plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1947

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1947
DateMarch 13, 1947
Kindstamp
Year1947
PlaceUnited States of America
ScottUSA 948
Mediumpaper; ink (blue) / engraving
Regionus
Npm Recordnpm_0.242263.16000
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.
Image SourceSmithsonian Open Access
Image LicenseCC0
Oracle ID36596373

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Source credit: Smithsonian National Postal Museum