How much is a 2002 Silver Buffalo coin with a certificate of authenticity worth?
The date of the American Buffalo commemorative coin is 2001 not 2002. The 2002 is a private minted medal called a silver round and is worth only the value of the silver in it. It must say .999 silver one ounce on it. There are also 2002 rounds that are only silver plated. The certificate will not mention the U.S. Mint so it is just a piece of paper.