The 2004 S Michigan State Quarter Gem PROOF Deep Cameo CN-Clad Coin is a highly collectible coin minted by the United States Mint in San Francisco. This uncirculated coin has a denomination of 25 cents and is part of the State Quarters series. The coin is composed of clad material and is struck in proof condition, resulting in a deep cameo appearance. It is certified by the U.S. Mint and is a valuable addition to any coin collection.