The 1990 & 1991 United States Mint Uncirculated Coin Set includes coins struck at the Philadelphia and Denver Mint locations. 12 coins in each set. These coins are composed of copper and are in uncirculated condition, making them ideal for collectors looking to add pristine coins to their collection. The set includes a variety of coins from the U.S. Mint certification, reflecting the craftsmanship and quality of American coin production in the early 1990s. A valuable addition for any coin enthusiast.