Arago: 20-cent China Clipper

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20-cent China Clipper

20c China Clipper plate proof

Scott Catalogue USA: C21
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. 21622

Denomination: 20c

Subject: "China Clipper" over the Pacific, Air Mail Issue

Color: green

Medium:
paper; ink (green) / engraving
Museum ID:
0.242263.3038
Place:
UNITED STATES OF AMERICA

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