The product is a 1990 United States Mint Uncirculated Coin Set from the Philadelphia and Denver mints. This set includes coins struck in proof quality and certified by the U.S. Mint. The coins are all from the United States and are in pristine uncirculated condition, making them highly sought after by collectors. Perfect for those looking to add a piece of American numismatic history to their collection, this set offers a comprehensive selection of coins from two prominent mint locations in the US.