Guam Territory Quarter Value

A Guam Territory Quarter (2009) is worth between $0.25 in Poor condition and $1.50 or more in Uncirculated condition. In the most commonly found Fine grade, expect around $0.25. Gem specimens graded MS-65 can reach $4.50 or higher. Values fluctuate with collector demand and the spot price of silver.

The most valuable Guam Territory Quarter is the 2009-S — silver proof issue. This date is valued at $5–$10 depending on grade and condition. Always have potentially valuable dates authenticated by PCGS or NGC before selling.

Grading a Guam Territory Quarter starts with examining the highest points of the design, where wear appears first. Look for remaining luster, sharpness of details, and surface marks. The Sheldon scale runs from 1 (Poor) to 70 (Perfect). For this series, the jump from Fine (F-12, worth ~$0.25) to Uncirculated (MS-63, worth ~$1.50) is significant. Professional grading by PCGS or NGC costs $20–$50 per coin and is recommended for coins that appear to be worth $100 or more. Our PDF guide ($2.99) includes a visual grading chart for this series.

For common-date Guam Territory Quarters in circulated grades, local coin shops and eBay are practical options — expect 70–85% of retail value. For key dates or high-grade examples, Heritage Auctions or Stack's Bowers will reach the most serious buyers and typically achieve the strongest prices. PCGS or NGC certification is essential before consigning valuable coins to auction. For a detailed selling strategy, see our selling guide.

Yes. Known Guam Territory Quarter errors include doubled die obverses and reverses, repunched mintmarks, off-center strikes, and die cracks. Some error varieties can be worth multiples of normal strikes. Always examine coins under magnification to check for die doubling, especially on lettering and dates.

Authentic Guam Territory Quarters weigh 5.67 grams and measure 24.3 mm in diameter. Check the weight with a precision scale (digital scales accurate to 0.01g are available for under $20). The coin should be composed of 91.67% copper, 8.33% nickel (clad); 90% silver (proof). Counterfeit coins often fail the weight test, show seams on the edge, or have mushy design details. For valuable dates, always obtain PCGS or NGC authentication — the cost is minimal compared to the risk of buying or selling a counterfeit.

The four biggest value drivers for Guam Territory Quarters are: (1) Grade — the difference between Good and Uncirculated is $1.25 for common dates; (2) Date and mintmark — key dates like 2009-S command large premiums; (3) Silver spot price — sets a floor value for circulated examples; (4) Eye appeal — original surfaces, attractive toning, and strong strikes increase desirability among collectors.

The Guam Territory Quarter was produced from 2009. Mintage varied widely by year and mint — some dates had millions struck while key dates had far fewer. The scarce 2009-S is especially sought after. Check our full value table above for key dates and their relative scarcity.

Never clean a Guam Territory Quarter or any collectible coin. Cleaning removes the original surface and patina, which collectors prize — a cleaned coin can lose 50% or more of its value compared to an original, naturally toned example. Even coins that look "dirty" often have desirable original toning. If you must remove loose debris, hold the coin by its edges and gently rinse with distilled water. Our coin storage guide has more preservation tips.

Guam Territory Quarters in key dates and high grades have historically appreciated well. Common dates in circulated grades are affordable entry points and carry intrinsic silver value as a floor. For investment purposes, focus on PCGS/NGC-certified examples in grades of Fine or better, and prioritize key dates with low mintages. Our PDF Quick Reference Guide ($2.99) covers all Guam Territory Quarter dates and values to help identify the best opportunities.