1957 5c United Nations

1957 United Nations Airmail

All U.N. airmail stamps are illustrated with the symbols of flight.  They show stylized planes or birds along with the U.N. emblem.  This 5¢ stamp features an airplane wing and the globe.

The United States Post Office began airmail service in 1918, using modified military planes to fly mail between a few large cities.  The first airmail stamps of the U.N. were issued in 1951.