The 2004-S 90% Silver Proof Set is a prestigious 11-coin collection struck in San Francisco by the U. Each coin is composed of 90% silver, making it a valuable addition to any coin collection. This set comes with original government packaging, a Certificate of Authenticity, and a Certificate of Provenance, adding to its collectible appeal. With a high level of detail and a PROOF finish, this set is a coveted item for collectors and investors alike.