This 1999 Clad Proof Set comes with the original government packaging (OGP) and a certificate of authenticity (COA), ensuring its authenticity. The set includes coins in denominations of 1C, 5C, 10C, 25C, and 50C, all in uncirculated condition. The coins are made of copper-plated zinc and copper-nickel composition and were struck as proofs at the San Francisco mint. The set was manufactured in the United States and certified by the U.S. Mint. This is a great addition to any coin collection and a unique piece of American history.