The product is a 2009 S Northern Mariana Islands 90% Silver "Proof" Territory Quarter, minted in San Francisco by the United States Mint. This uncirculated coin has a denomination of 25 cents and is composed of 90% silver. It is a special strike type called proof, making it a highly collectible item for those interested in US quarters from the District of Columbia and US Territories. With its unique design and limited mintage, this coin is a valuable addition to any coin collection.