Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 5c Signing of the Compact plate proof
5c Signing of the Compact plate proof

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5c Signing of the Compact plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1920

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1920
DateDecember 6, 1920
Kindstamp
Year1920
PlaceUnited States of America
ScottUSA 550
Mediumpaper; ink (deep blue) / engraving
Regionus
Npm Recordnpm_0.242263.12334
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 ID36593121

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Source credit: Smithsonian National Postal Museum