The 1999-S United States Proof Set is a collection of uncirculated coins ranging in denomination from 1 cent to 50 cents, all composed of copper. Minted in San Francisco by the U.S. Mint, these coins are struck in a proof finish, making them highly desirable for collectors. This set includes coins with different designs and is a valuable addition to any coin collection, showcasing the craftsmanship and artistry of American coinage.
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