The product is a rare 1979 D Susan B Anthony dollar from the Denver Mint, featuring a "filled D" mint error. This silver coin has a fineness of 0.5 and is classified as a business strike. It is circulated and uncertified, making it a valuable addition to any coin collection, especially for those interested in the Susan B Anthony series of coins. The coin was minted in the United States and is a unique piece due to the mint error.