The 2005-S US Mint Silver Proof 11 Coin Set is a collectible set of uncirculated coins made of 90% silver. Minted in San Francisco by the U. Mint, each coin in the set is struck with a proof finish, showcasing a high level of quality and detail. This set comes in its original government packaging with a Certificate of Authenticity, making it a desirable addition for any coin enthusiast or collector looking to add a piece of American history to their collection.