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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 4c Scales of Justice, Factory, Worker and Family plate proof
4c Scales of Justice, Factory, Worker and Family plate proof

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4c Scales of Justice, Factory, Worker and Family plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1961

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1961
DateAugust 15, 1961
Kindstamp
Year1961
PlaceUnited States of America
ScottUSA 1186
Mediumpaper; ink (ultramarine, grayish) / engraving
Regionus
Npm Recordnpm_0.252182.112
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 ID36596019

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Source credit: Smithsonian National Postal Museum