The product is a highly sought-after 2009 S Silver Proof Quarter Guam Coin certified by NGC with a grade of PF70 Ultra Cameo. This coin, minted in San Francisco, features a striking proof finish and is composed of silver. As part of the US Territories series, it holds a denomination of 25 cents and is a rare top pop of only 4,000 coins. With its pristine condition and collectors' interest in US territories coins, this particular quarter from Guam is a valuable addition to any collection.