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uncommon1900-1945

United States Air Post Stamp

United States · 1918 · 24c

This stamp features a Curtiss JN-4 "Jenny" biplane, the primary training aircraft for the U.S. Army during World War I. The design is framed by a simple border with the denomination and country name. It was issued to pay the rate for the first scheduled airmail service in the United States.

Issued in 1918, this stamp marks the beginning of regular airmail service in the U.S., a significant milestone in postal history and aviation. The most famous error in U.S. philately, the "Inverted Jenny," comes from this issue.

Printing Method

Engraved

Catalog Numbers

scottC3

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Estimated Values by Condition

Superb(S)

Perfectly centered, fresh, no faults

$150
Extremely Fine(XF)

Well centered, fresh colors

$110
Very Fine(VF)

Nicely centered, minor flaws

$85
Fine(F)

Average centering, acceptable

$60
Good(G)

Off-center or visible wear

$30

Prices are approximate market estimates for educational purposes. Actual values depend on specific factors including cancel type, margins, and provenance.