The 1999-2008 US Mint Proof Sets include a collection of commemorative coins featuring 50 state quarters, along with other denominations such as 1C, 5C, 10C, 25C, and $1. These uncirculated coins are crafted with clad composition and struck in proof condition at the San Francisco Mint. Each set comes with U.S. Mint certification, making it a valuable and sought-after addition to any coin collection.
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