Check the listing for details. 1997 Clad Proof Set U.S. Mint Original Government Packaging OGP COA. Made in United States. Listed at 14.99 USD. The 1997 Clad Proof Set from the U.S. Mint comes in its original government packaging, ensuring the authenticity and quality of the coins. This set includes a variety of denominations such as 1C, 5C, 10C, 25C, and 50C, all composed of copper-plated zinc and copper-nickel. Minted in San Francisco, these proof coins bear the striking proof finish, making them highly sought after by collectors. Each coin is guaranteed to be in uncirculated condition, adding to the appeal of this set for any coin enthusiast.