Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Gordian III Antoninianus
Radiate silver coin of Gordian III, who became sole emperor at about thirteen years old and reigned through Rome's costly war with Sassanid Persia.
Ancient
Caracalla Denarius
Silver denarius of Caracalla, son of Septimius Severus, remembered for extending Roman citizenship empire-wide and for murdering his brother Geta.
Ancient
Chalkidian League Apollo Tetradrachm
Silver tetradrachm issued by the Chalkidian League of northern Greek cities, showing the laureate head of Apollo and a lyre, minted at Olynthus.
Ancient
Abdera Griffin Tetradrachm
Silver tetradrachm of the Thracian city of Abdera, featuring the mythical griffin inherited from its mother-city Teos, with magistrates' names on the reverse.
Ancient
Segesta Hound Tetradrachm
Silver coin of Segesta in western Sicily, an Elymian city whose coinage features a hunting hound, linked to local legend of the river god Krimisos.
Ancient
Leontini Lion Tetradrachm
Silver tetradrachm of the Sicilian city of Leontini, showing the laureate head of Apollo and a lion's head or lion with barley grains, alluding to the city's wheat production.
Ancient
Kroton Tripod Stater
A silver stater from the Greek colony of Kroton in southern Italy, depicting Apollo's sacred tripod, among the finest examples of the early incuse coinage style.
Ancient
Cyzicus Electrum Stater
An electrum stater from the trading city of Cyzicus on the Sea of Marmara, part of one of the most important and long-lived precious-metal trade currencies of the ancient world.
Ancient
Akragas (Agrigentum) Eagle and Crab Tetradrachm
A silver tetradrachm from the wealthy Sicilian city of Akragas, pairing an eagle, symbol of Zeus, with a river crab representing the city's local waterways.
Ancient
2010 Hot Springs America the Beautiful Quarter
The first coin in the America the Beautiful Quarters series, honoring Hot Springs National Park in Arkansas with an image of its historic bathhouse row.
United States
1921 Walking Liberty Half Dollar
The three 1921 mintmark varieties are the acknowledged key dates of the Walking Liberty half dollar series, each struck in unusually small numbers.
United States
1918/7-S Standing Liberty Quarter Overdate
One of the most famous overdate varieties in U.S. coinage, where a leftover 1917 die was re-punched with an 1918 date, leaving remnants of the 7 visible beneath the 8.
Errors & Varieties
1896-S Barber Quarter
One of the three classic key dates of the Barber quarter series, valued for its low original mintage and the difficulty of finding problem-free survivors.
United States
Merovingian Gold Tremissis
A small gold coin of the Merovingian Frankish kingdom, worth one-third of a solidus, often naming the local moneyer who struck it rather than the reigning king.
European
Mughal Gold Mohur
The premier gold coin of the Mughal Empire, prized for its bold Persian calligraphy, occasional portraiture, and the wealth and artistry of Mughal court culture.
Asian
Two Pound Coin
The UK's bimetallic £2 coin, standardized for circulation in the late 1990s, widely used for a rotating series of commemorative reverse designs.
British
Ryal
A large Scottish silver coin issued under Mary, Queen of Scots and Henry Stewart, Lord Darnley, nicknamed the 'sword dollar' for the crowned sword on its reverse.
British
Half Groat
A small hammered silver coin worth half the value of the groat, or two pence, struck across three centuries of English coinage from the reign of Edward III through the Stuart era.
British
Byzantine Gold Solidus
The gold standard coin of the Byzantine Empire for over 700 years, prized in medieval trade as far away as India and Scandinavia under the nickname "bezant."
Ancient
Augustus Aureus Gaius and Lucius Caesar
One of the most common ancient gold coins, an Augustus aureus honoring his grandsons and intended heirs Gaius and Lucius Caesar, both of whom died young.
Ancient
1936 Doubled Die Lincoln Cent
A doubled die obverse variety of the 1936 wheat cent showing visible doubling in the date and lettering, recognized in two distinct doubling strengths by collectors.
Errors & Varieties
1938-D Buffalo Nickel
The final year of the Buffalo Nickel series, the 1938-D was widely saved by the public at the time and remains a popular, affordable last-year issue for collectors.
United States
Flowing Hair Half Dime
One of the earliest United States silver coins, the Flowing Hair Half Dime was struck only in 1794 and 1795 and is a landmark rarity for early American coinage collectors.
United States
Jefferson Nickel
Struck since 1938, the Jefferson Nickel pairs a portrait of Thomas Jefferson with his home, Monticello, and briefly switched to a silver alloy during World War II.
United States