Arago: 25-cent Panama Canal 25th Anniversary

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25-cent Panama Canal 25th Anniversary

25c Pan American Clipper at Christobal Harbor plate proof

Scott Catalogue Canal Zone: C18
Description:

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 No.140995

Denomination: 25c

Subject: Pan American Clipper at Christobal Harbor, Canal Zone Air Mail Issue

Color: blue

Date:
April 27, 1939
Medium:
paper; ink (blue) / engraving
Museum ID:
0.309126.302
Place:
UNITED STATES OF AMERICA

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