½ Dollar (Ulysses S. Grant)

The 1922 Grant Half Dollar — and the star that wasn't supposed to be there

In 1922 the Mint struck a half dollar for Ulysses S. Grant's hundredth birthday. Then it quietly punched a tiny star into a few thousand of them — a mark with no meaning, meant only to sell more coins. That star is why collectors still hunt this coin a century later.