10c Pan-American Fast Ocean Navigation vignette plate proof, 487. Certified 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.;Plate ;Denomination: 10c;Subject: Fast Ocean Navigation (Steamship "St. Paul"
10c Pan-American Fast Ocean Navigation vignette plate proof, 487. Certified 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.;Plate ;Denomination: 10c;Subject: Fast Ocean Navigation (Steamship "St. Paul"), Pan-American Exposition Issue;Color: yellow brown & black.
Size: 1614px × 2247px
Photo credit: © Heritage Images / Alamy / Afripics
License: Licensed
Model Released: No
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