An extremely rare 50 cent coin has sold for more than $3,000 at auction due to a mistake that happened during the minting process.

5 Most Valuable Kennedy Half Dollars Although some Kenndy 50-cent pieces are worth only about 50 cents, others fetch thousands at auction. It's all about rarity, silver content, and condition.

The 1797 draped bust half dollar coin was the final draped bust design on the half dollar and only ran for two years, according to CoinCollecting.com. Fewer than 3,000 were minted, and it’s estimated ...

There’s only an estimated 25 Silver Center Cent J-1 Special Strike coins that continue to be floating around different collections today, with the highest sales price topping out at $2,520,000.

Coin dealers say demand for rare-issue notes and coins - such as such as a pre-World War Two Canadian $20 bill featuring Elizabeth as a child or Australia's Platinum Jubilee 50-cent coin - has ...