US 25-cent China Clipper Airmail Stamp

United States · 1935 · 25¢

A blue 25-cent US airmail stamp featuring the Martin M-130 'China Clipper' flying boat, issued to commemorate the inaugural trans-Pacific airmail service.

Issued in 1935, this stamp celebrates the groundbreaking trans-Pacific airmail route established by Pan American Airways, significantly reducing communication times between the US and Asia.