The dual date appearing on the 2026 cent and nickel issued for the United States Semiquincentennial is 1776–2026.
The two dates connect the Declaration of Independence’s adoption with the anniversary year. Together, they show the 250-year span represented by the Semiquincentennial rather than identifying only the year in which the coin was struck.
The Mint used the dual-date concept on the anniversary-year cent and nickel, along with a Liberty Bell privy mark. The cent was made available to collectors rather than being struck for ordinary circulation after production changes affecting cents.
The format echoes earlier anniversary coinage, especially the 1776–1976 Bicentennial coins. A dual date is not the same as a mint mark: the dates indicate the historical period being commemorated, while a mint mark identifies the facility that produced a coin.