The 1991 and 1992 U.S. Mint Sets include uncirculated government packs containing 20 coins with denominations of 1C, 5C, 10C, 25C, 50C, and U.S. Treasury Mint tokens. These sets feature coins struck in business settings in the Philadelphia and Denver mints, with compositions of copper-plated zinc, copper-nickel, and manganese-brass. Each set comes with a U.S. Mint certification, making them official collections of United States coins from the specified years. Ideal for collectors and investors looking to add a complete set of 1991 and 1992 mint condition coins to their collection.