The 2005 Proof Quarter Set with Certificate of Authenticity is a highly collectible coin set featuring uncirculated silver quarters minted in San Francisco by the U.S. Mint. Each quarter has a fineness of 0.9 and comes with a certificate of authenticity. This set is a valuable addition to any numismatic collection, showcasing the high quality and craftsmanship of American coinage in the early 21st century.
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