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Stamps › US › Smithsonian National Postal Museum — Bureau Plate Proofs › 50c Western Mining Prospector trial color plate proof
50c Western Mining Prospector trial color plate proof

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50c Western Mining Prospector trial color plate proof

Smithsonian National Postal Museum — Bureau Plate Proofs · US · English · 1898

Catalog record

LineUS
Set / seriesSmithsonian National Postal Museum — Bureau Plate Proofs
LanguageEnglish
Year1898
DateMay 31, 1898
Kindstamp
Year1898
PlaceUnited States of America
ScottUSA 291TC
Mediumpaper; ink (black) / engraving
Regionus
Npm Recordnpm_0.242263.580
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 ID36596783

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Source credit: Smithsonian National Postal Museum