Coin Highlights
- Year: 2009
- Mint Mark: S (San Francisco)
- Grade: Gem Proof
- Composition: 90% Silver, 10% Copper
- Weight: 6.25 grams
- Actual Silver Weight: 0.1808 troy oz
- Diameter: 24.3 mm
- Edge: Reeded
- Mintage: 996,548
Design
Obverse:
John Flanagan’s classic portrait of George Washington, updated by William Cousins, with the inscriptions “UNITED STATES OF AMERICA,” “LIBERTY,” “IN GOD WE TRUST,” and “QUARTER DOLLAR.”
Reverse:
An outline of Guam alongside a flying proa, a traditional Chamorro sailing vessel, and a latte stone, the iconic stone pillars once used as foundations for ancient Chamorro homes. The design includes the inscriptions “GUAM,” “GUAHAN I TANÓ MANCHAMORRO” (Guam—Land of the Chamorro), “E PLURIBUS UNUM,” and “2009.”
Collectibility
Available only in the 2009 U.S. Mint District of Columbia and U.S. Territories Silver Proof Set, the 2009-S Guam Silver Proof Quarter was never released into circulation. With a mintage of 996,548, it is among the lower-mintage modern silver proof quarters and is a popular choice for collectors building complete State and Territorial Quarter silver proof sets.




