Whether you're a coin collector looking for your next prized piece or just an enthusiast who wants to know what coins are worth the most, understanding valuable coins is a great way to add value to your collection.
Only a few others are still around in designated U.S. museum collections and a bank bullion suppository in Fort Knox, making it one of the rarest and most expensive coins and nearly impossible to collect.
It was the first silver dollar to be authorized by Congress and features a portrait of Liberty on its obverse side with an eagle on its reverse side inspired by the Great Seal of the United States.
The 1787 Brasher Doubloon is another highly valuable U.S. coin minted during the same year the Constitution of the United States came into effect. It sold for over $9 million and is considered one of the rarest coins in existence.