The product is a circulated 1902S Barber 90% Silver Quarter #31, minted in San Francisco. This coin has a face value of 25 cents and is composed of 90% silver. It is a business strike type and has not been certified for its grade. It is a valuable addition to any coin collection, showcasing a piece of United States history from the early 20th century. 1902S  Barber 90% Silver Quarter #31.