Arago: 30-cent Transport Plane

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30-cent Transport Plane

30c Transport Plane plate proof

Scott Catalogue USA: C30
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. 22774

Denomination: 30c

Subject: Twin-Motored Transport Plane, Air Mail Issue

Color: blue

Medium:
paper; ink (blue) / engraving
Museum ID:
0.242263.3056
Place:
UNITED STATES OF AMERICA

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