1941 US Airmail 6¢ Transport Plane

United States · 1941 · 6¢

A 6-cent carmine airmail stamp featuring a twin-motored transport plane in flight, with 'U.S. POSTAGE' and 'AIR MAIL' inscriptions.

Issued during World War II, this stamp facilitated airmail services, reflecting the growing importance of aviation for communication and transport in the era.