Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
1921 Mercury Dime
A key date of the Mercury dime series, struck in unusually low numbers amid a post-World War I economic slowdown that reduced coinage demand nationwide.
United States
1955 Doubled Die Lincoln Cent
A famous doubled die error showing strong, plainly visible doubling on the date and lettering of the obverse, among the most recognizable die varieties in U.S. coinage.
Errors & Varieties
Ottoman Rashidi Kurus
A silver kurus variety struck to a distinct local standard within the Ottoman Arabian provinces, less standardized and less commonly catalogued than the empire's main Constantinople coinage.
World
Lampsakos Electrum Stater
An electrum stater from Lampsakos on the Hellespont, another important early precious-metal trade coinage of Asia Minor, often featuring a winged horse or janiform head.
Ancient
Quarter Farthing
The smallest fractional denomination in British coinage, worth one-sixteenth of a penny, struck primarily for use in colonial Ceylon during Victoria's reign.
British
1876-CC Twenty-Cent Piece
One of the great rarities of United States coinage: a Carson City twenty-cent piece of which nearly the entire mintage was melted, leaving only a small number of survivors known.
United States
1827 Capped Bust Quarter
One of the most celebrated rarities in American numismatics, the 1827 quarter exists only as extremely rare proof-like Originals and later Restrikes rather than typical circulation coinage.
United States
1965 Kennedy Half Dollar (40% silver)
A transitional Kennedy half dollar struck with reduced 40% silver content after the Coinage Act of 1965 eliminated silver from dimes and quarters, honoring the assassinated president.
United States
Italian 5 Lire
A large silver crown of the newly unified Kingdom of Italy, bearing the portrait of the reigning king and marking Italy's emergence as a single national currency after centuries of regional coinages.
European
Argentine Peso Moneda Nacional (Patacón)
Argentina's long-standing peso moneda nacional coinage, informally nicknamed the patacón, formed the backbone of the country's currency from the 1880s well into the twentieth century.
Latin American
Panormus Siculo-Punic Tetradrachm
A silver tetradrachm struck at Panormus under Carthaginian control in Sicily, blending Greek artistic style with Punic legends, a hallmark of the distinctive Siculo-Punic coinage series.
Ancient
Chinese Yunnan Province Dragon Dollar
A silver dragon dollar struck by China's remote southwestern Yunnan province, notable for its distinctive coiled dragon design and unusually long production continuing well into the Republic era.
Asian
2004-D Wisconsin State Quarter Extra Leaf
A famous 50 State Quarters error showing an extra corn leaf on the Wisconsin quarter's reverse, found in two forms known as Extra Leaf High and Extra Leaf Low.
Errors & Varieties
2004-D Wisconsin Extra Leaf High Quarter
The 'high leaf' variant of the famous Wisconsin quarter extra-leaf variety, showing the anomalous extra corn leaf pointing upward and outward rather than low near the cheese wheel.
Errors & Varieties
Japanese 1 Yen Silver 'Dragon' Trade Dollar
A Meiji-era Japanese silver yen featuring a coiled dragon, struck to standardize Japan's currency and, in a special trade dollar variant, to compete with Mexican and other silver dollars across East Asia.
Asian