US 5¢ Airmail Stamp, Scott C42

United States · 1949 · 5¢

A blue airmail stamp depicting a propeller-driven airplane, likely a DC-4 or similar, flying over a stylized landscape. The denomination '5¢' is in the upper left.

Issued in 1949, this stamp reflects the ongoing importance of airmail services in the post-World War II era, facilitating rapid communication across the United States.