United States 6-Cent Stamped Envelope with 1971 Revaluation

United States · 1968 · 6 cents (revalued to 8 cents)

This listing features a 6-cent stamped envelope indicium from the United States, originally issued in 1968. In 1971, an additional revaluation indicium was added to reflect a change in postal rates, typically increasing its face value to 8 cents.

The revaluation of the 6-cent envelope in 1971 was a direct response to the increase in the first-class postal rate from 6 cents to 8 cents, a common practice to allow existing postal stationery to remain valid.