US 6-cent Airmail First Flight Cover, AM1

United States · 1935 · 6 CENTS

The stamp, a 6-cent dark blue airmail issue, features a biplane in flight. It is affixed to a First Flight Cover postmarked Allentown, PA, on July 1, 1935, for Air Mail Route 1.

This First Flight Cover commemorates the inauguration of Air Mail Route 1, reflecting the significant expansion and development of airmail services across the United States in the mid-1930s.