China 1948 Airmail Overprint (Great Wall)

China · 1948 · 30¢

A 1948 Chinese airmail stamp featuring the Great Wall of China, originally issued in the 1930s, with a red overprint indicating 'National Currency' and 'For use in Northeast only'.

This overprinted stamp reflects the complex political and economic situation in China immediately after World War II, with specific currency and regional usage instructions for the Northeast region.