United States Meter Stamp, Type IA3k1

United States · 1930 · 2 cents

A circular meter stamp impression featuring 'U.S. POSTAGE' at the top and '2 CENTS' prominently in the center, typically including a serial number and date of franking.

Meter stamps like this revolutionized mail processing by allowing businesses to print postage directly, enhancing efficiency. This Type IA3k1 represents an early form of mechanical franking introduced in the United States in the 1920s.