The 2005-S 90% Silver Proof Set from the US Mint includes 11 coins with denominations ranging from 1 cent to 50 cents. Minted in San Francisco, these uncirculated coins are composed of 90% silver and come with a box and Certificate of Authenticity. This set is perfect for collectors looking to add a piece of American numismatic history to their collection. 2005 mint set is also added.