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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 4c 150th Anniversary of Mexican Independence plate proof
4c 150th Anniversary of Mexican Independence plate proof

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4c 150th Anniversary of Mexican Independence plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1960

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1960
DateJuly 14, 1960
Kindstamp
Year1960
PlaceUnited States of America
ScottUSA 1157
Mediumpaper; ink (green & rose red) / engraving
Regionus
Npm Recordnpm_0.242263.16290
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 ID36592579

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Source credit: Smithsonian National Postal Museum