1935 First Flight Cover - Allentown PA to Congress Park IL

United States · 1935 · 20¢

A 1935 First Flight Cover featuring a 20¢ blue US airmail stamp depicting a biplane and a 6¢ purple definitive stamp. It bears postmarks from Allentown, PA, and is addressed to Congress Park, IL.

This cover marks the inaugural flight of Air Mail Route 1 in 1935, reflecting the ongoing expansion and importance of airmail services in the United States during the interwar period.