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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 15c Map of United States and Two Mail Planes, Air Mail plate proof
15c Map of United States and Two Mail Planes, Air Mail plate proof

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15c Map of United States and Two Mail Planes, Air Mail plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1926

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1926
DateSeptember 14, 1926
Kindstamp
PlaceUnited States of America
ScottUSA C8
Mediumpaper; ink (olive brown) / engraving
Regionus
Npm recordnpm_0.242263.3022
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 ID36594234

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Source credit: Smithsonian National Postal Museum