The 1990 Clad Proof Set includes coins with denominations ranging from 1 cent to 50 cents, all struck as proof coins in San Francisco. The set features coins composed of copper-plated zinc and copper-nickel, housed in original government packaging with a Certificate of Authenticity from the U.S. Mint. With the coins being uncirculated and graded as proof, this set is a valuable addition to any coin collector's inventory. In great shape.