Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.

Argentina 8 Reales
Silver 8 reales struck after Argentina's 1810 independence movement, replacing the Spanish king's portrait with the revolutionary Sun of May and clasped hands design.
Latin American
Spanish 4 Reales
A mid-value denomination of Spain's traditional real-based coinage, struck for centuries in both Spain and its American colonies.
European
Kwangtung Province Dragon Dollar
One of the earliest Chinese machine-struck silver dollars, issued by Kwangtung Province and featuring a coiled dragon reverse that became the template for Chinese provincial dollar coinage.
Asian
Korean Gwangmu Half Won (1905)
Silver half-won coin from the short-lived Korean Empire's Gwangmu currency reform, struck shortly before Korea fell under increasing Japanese control.
Asian
Flowing Hair Half Dollar
The first U.S. half dollar, struck only in 1794 and 1795, showing Liberty with flowing hair and a small, spread-winged eagle on the reverse.
United States
Spanish Gold Escudo (Doubloon)
The gold denomination of the Spanish Empire, whose larger multiples became famous as "doubloons," struck both in Spain and across its American colonial mints for centuries.
European
Daniel Boone Bicentennial Half Dollar
A commemorative half dollar honoring frontiersman Daniel Boone's 200th birthday, depicting Boone alongside Native American leader Chief Black Fish on the reverse.
Commemorative
Arkansas Centennial Half Dollar
A commemorative half dollar marking Arkansas's 100th anniversary of statehood, pairing a Native American profile with an idealized Liberty figure on the obverse.
Commemorative
1878 Morgan Dollar (8 Tail Feathers)
The first-year Morgan dollar variety showing the eagle with eight tail feathers, quickly replaced mid-year by the standard seven-feather design.
United States
Monroe Doctrine Centennial Half Dollar
A 1923 U.S. commemorative half dollar marking the 100th anniversary of the Monroe Doctrine, featuring an allegorical map of the Americas.
Commemorative
Susan B. Anthony Dollar
A small-size dollar coin honoring women's suffrage leader Susan B. Anthony, notable as the first U.S. coin to depict a specific historical American woman.
United States
Oregon Trail Memorial Half Dollar
A long-running commemorative honoring the Oregon Trail pioneers, featuring an acclaimed design of a Conestoga wagon and a Native American figure by Fraser and Fraser.
Commemorative
Braided Hair Large Cent
The final large cent design, showing Liberty with braided hair, produced until the bulky copper cent was replaced by the small Flying Eagle cent in 1857.
United States
1972 Eisenhower Dollar (Type 2)
A scarce reverse variety of the 1972 Eisenhower dollar, distinguished by a more detailed, higher-relief rendering of the Earth behind the moon-landing eagle, and prized by variety collectors.
Errors & Varieties
1894-S Barber Dime
One of the most famous rarities in American numismatics, struck in an extremely limited quantity at the San Francisco Mint with only a small number known today.
United States
German Empire 20 Mark Gold (Wilhelm II)
The standard gold coin of the German Empire under Kaiser Wilhelm II, struck at multiple state mints and widely collected for its imperial portrait and eagle reverse.
European
Texas Independence Centennial Half Dollar
A commemorative half dollar marking the 100th anniversary of Texas independence from Mexico, featuring an eagle on a lone star and figures of Sam Houston and Stephen F. Austin.
Commemorative
Lincoln Memorial Cent
The long-running Lincoln cent reverse featuring the Lincoln Memorial, used for half a century and one of the most commonly encountered coins in American pockets and collections.
United States
Nova Constellatio Copper
Distinctive early American copper coin featuring a radiant eye within a circle of stars, associated with Gouverneur Morris's proposed decimal coinage plans of the early 1780s.
United States
1787 Brasher Doubloon
An extraordinarily rare private gold coin struck by New York goldsmith Ephraim Brasher in 1787, now one of the most valuable and famous coins in American numismatics.
United States
Seljuk Copper Fals
Base-metal copper coin of everyday commerce in the Seljuk Turkish world, notable for unusually rich figural imagery such as lions, suns, and double-headed eagles.
Asian
Massachusetts Oak Tree Shilling
The second design in Massachusetts Bay's colonial tree-coin series, showing an oak tree, more available than the earlier Willow Tree type but still a scarce early American colonial rarity.
United States
Yuan Shih-kai Dollar ("Fat Man Dollar")
A widely circulated Republic of China silver dollar bearing the portrait of President Yuan Shikai, nicknamed the "Fat Man Dollar" for his rounded features and became China's standard silver coin for years.
Asian
Immune Columbia Copper
An extremely rare Confederation-era copper carrying the Latin legend 'IMMUNIS COLUMBIA,' known for numerous unusual die combinations and mules with other early American and British designs.
United States