Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Ottoman Gold Sultani
The principal gold trade coin of the early Ottoman Empire, struck to match the weight and fineness of the Venetian ducat so it could compete in Mediterranean commerce.
World
Byzantine Electrum Aspron Trachy (Scyphate)
A distinctive cup-shaped Byzantine coin struck in electrum after Alexios I Komnenos's currency reform, featuring religious imagery and a concave scyphate flan.
Ancient
Constantine CONSTANTINOPOLIS Commemorative
A small bronze commemorative celebrating the founding of Constantinople, showing Victory standing on a ship's prow on the reverse.
Ancient
Elis Olympia Zeus Stater
A silver stater struck by the city-state of Elis, guardian of the sanctuary of Olympia, showing Zeus on the obverse and his sacred eagle on the reverse.
Ancient
Ephesus Bee Tetradrachm
A silver coin from the Ionian city of Ephesus featuring a bee, sacred symbol of the great Temple of Artemis, paired with a stag on the reverse.
Ancient
1911 Canadian Silver Dollar (Pattern)
An extraordinarily rare 1911 trial striking exploring a Canadian silver dollar decades before the denomination was actually introduced, with only a handful of specimens known.
Canadian
Saudi Arabian Gold Guinea (Sovereign)
A gold coin issued by Saudi Arabia sized like the British sovereign, popularly called a guinea, historically important for Hajj pilgrims and gold-based savings rather than everyday circulation.
Asian
Korean 5 Yang Silver Dollar (1892)
Korea's first Western-style, dollar-sized silver coin, struck in 1892 with a coiled dragon design as part of King Gojong's currency modernization.
Asian
Presidential Dollar - George Washington
The first coin in the U.S. Presidential Dollar series, honoring George Washington, notable for edge-lettering errors including the famous 'Godless Dollar' missing IN GOD WE TRUST.
United States
Ides of March Denarius (EID MAR)
A denarius struck by Brutus in 42 BC commemorating Julius Caesar's assassination, showing daggers and a liberty cap — one of the most famous and valuable ancient coins ever made.
Ancient
Postumus Antoninianus
Radiate coin of Postumus, the general who broke away from Rome to found the separatist Gallic Empire covering Gaul, Britain, Germania, and Hispania during the Crisis of the Third Century.
Ancient
Spanish Colonial Cob (Macuquina)
Crude, irregularly shaped hand-struck coins produced at Spanish colonial mints in the Americas for over two centuries, forming the basis of the famous 'pieces of eight' that circulated worldwide.
Latin American
1984 Los Angeles Olympics Commemorative Dollar
The second year of a two-year US commemorative coin program, this 1984-dated silver dollar helped fund the Los Angeles Olympic Games and featured Olympic-themed artwork struck at three US mints.
Commemorative
Maria Theresa Thaler
An Austrian silver trade coin dated 1780 that has been restruck continuously for over two centuries, remaining a trusted currency across parts of Africa and the Middle East long after its original issue.
European
Swedish Riksdaler
Sweden's traditional silver dollar denomination, used for roughly two centuries before being replaced by the krona in the 1870s currency reform.
European
Australian Holey Dollar and Dump
In 1813, colonial authorities in New South Wales punched the centers out of Spanish silver dollars to create two coins from one, easing a severe coin shortage while preventing the silver from leaving the colony.
Africa & Oceania
Type 3 Indian Princess Gold Dollar
The final and longest-running design of the U.S. gold dollar, featuring a larger, better-struck Native American princess portrait than its short-lived Type 2 predecessor.
United States
Julian II Bull Bronze
A large bronze maiorina of Julian the Apostate with a bull reverse, associated with his brief attempt to revive traditional pagan worship in Rome.
Ancient
Kushan Gold Dinar of Kanishka
A gold dinar of the great Kushan emperor Kanishka I, famous for its rich mix of Greek, Iranian, Indian, and Buddhist deities depicted on the reverse.
Ancient
Tiberius Tribute Penny Denarius
The famous silver denarius of Emperor Tiberius traditionally identified as the biblical 'Tribute Penny' from the New Testament's 'Render unto Caesar' episode.
Ancient
1932-S Washington Quarter
One of the two key dates of the Washington quarter series, struck at San Francisco in the design's debut year with a very limited mintage.
United States
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
Maundy Money Set
A set of tiny sterling silver coins in four denominations, specially struck each year for the monarch to distribute personally to elderly recipients in the Royal Maundy ceremony on Maundy Thursday.
British
Magnentius Double Centenionalis
A large bronze coin of the usurper Magnentius featuring one of the earliest large Christian Chi-Rho symbols on Roman coinage.
Ancient