UNITED STATES

UNITED STATES.

Biplanes and map of the United States (first commercial and postal flights).
Air mail.
First stamp in a set of 3, issued on 13.02.1926.
Face value: 10 cents of U.S. dollar.
Printed: Flat plate printing.
Printed by Bureau of Engraving and Printing.
Print: 42,092,800 copies.

Catalogues
- Scott No. C7.
- Yvert et Tellier No. PA7.