The United States Bicentennial coins issued for the 1976 anniversary bear the dual date 1776–1976.
The date connects the adoption of the Declaration of Independence in 1776 with the 200th anniversary year, 1976. It appeared on the temporary Bicentennial versions of the Washington quarter, Kennedy half dollar, and Eisenhower dollar.
Although the coins are commonly called 1976 coins, many were struck in 1975 as well as 1976. Congress authorized the special designs and dual dating for coins issued during the Bicentennial production period. The Mint used the same paired years on both circulation and collector versions.
The dates are not 1775–1976 because the anniversary focused on the Declaration’s adoption, not the opening of the Revolutionary War. They are also not 1776–1977: regular reverse designs returned after the Bicentennial issue ended.