The coin, part of a series called the American Innovation $1 Coin Program, was created for Texas and NASA’s mission control.

The U.S. Mint will commemorate the 25th anniversary of the Sacagawea dollar by issuing a limited-edition Proof half-ounce .9999 fine gold dollar coin.

Mostly, yes. The term buck as a synonym for a dollar is distinctly American in origin and usage. That said, due to America’s ...