Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Roman Denarius
The workhorse silver coin of ancient Rome for over four centuries, used across the Republic and Empire and one of the most widely collected categories of ancient coinage today.
Ancient
German Saxony Ducat
A high-purity gold trade coin struck for centuries by the rulers of Saxony, one of the most important German states before national unification.
European
Thebes Boeotian Shield Stater
A silver stater from Boeotia bearing the distinctive figure-eight-shaped Boeotian shield, the common civic emblem struck by Thebes and its allied cities for centuries.
Ancient
Japanese Mon (Kan'ei Tsuho cash coin)
Long-running cast copper or iron cash coin of Edo-period Japan, inscribed 'Kan'ei Tsuho' and produced continuously for well over two centuries.
Asian
Anglo-Saxon Silver Penny
The standard silver coin of Anglo-Saxon England from the 8th century to the Norman Conquest, naming the issuing king and the moneyer who struck it.
British
Maximinus Thrax Denarius
Silver denarius of Maximinus Thrax, the first Roman emperor risen from the common soldiery rather than the senatorial class, ruling amid the onset of the Crisis of the Third Century.
Ancient
Chinese Ban Liang Cash
China's first standardized round coin with a square center hole, introduced under Qin Shi Huang to unify currency across the newly consolidated Chinese empire.
Ancient
Chinese Song Dynasty Cash Coin
A round bronze coin with a square center hole issued during China's Song Dynasty, among the most massively produced and commonly collected pre-modern Chinese coin types.
Asian
Standing Liberty Quarter
An early 20th-century silver quarter featuring a striding figure of Liberty, prized for its artistic Type I 'bare breast' design and later modified Type II version.
United States
German Hamburg Ducat
A small, exceptionally high-purity gold trade coin struck for centuries by the free city of Hamburg, prized for its consistent fineness and long production history.
European
Thailand (Siam) Silver Baht 'Bullet Money' (Pod Duang)
Distinctive bent-bar silver currency used in Siam for centuries, hand-formed into a bullet-like shape and stamped with royal marks in place of a flat coin design.
Asian
Russian Ruble (Imperial)
The principal silver coin of the Russian Empire, struck for over two centuries and bearing the portraits of successive tsars and the imperial double-headed eagle.
European
Armenian Silver Noah's Ark
A biblically themed silver bullion coin issued by the Central Bank of Armenia, referencing Mount Ararat's traditional association with Noah's Ark.
World
Augustus Denarius
The main silver coin of Rome's first emperor, Augustus, whose long reign established the imperial monetary system that would last for centuries.
Ancient
Indian Head Gold Quarter Eagle ($2.50)
A small early 20th-century $2.50 gold coin notable for its incuse design and Native American war bonnet portrait, designed by sculptor Bela Lyon Pratt.
United States
German States Thaler
A large silver coin struck by the many independent states of the German-speaking world for over three centuries, and the direct linguistic ancestor of the word 'dollar.'
European
Australian Threepence (pre-decimal)
Small pre-decimal Australian silver coin worth three pence, popularly recognized for its bundled wheat-ear reverse design used across most of the 20th century.
Africa & Oceania
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
Mamluk Gold Dinar
A gold dinar of the Mamluk Sultanate, which ruled Egypt and Syria for over two and a half centuries, continuing the Islamic epigraphic gold coinage tradition until the Ottoman conquest.
World
Umayyad Silver Dirham
A silver coin of the Umayyad Caliphate struck after Caliph Abd al-Malik's monetary reform, bearing only Arabic inscriptions and setting the template for centuries of Islamic coinage.
World
French Ecu (Louis d'Argent)
France's principal large silver coin of the pre-revolutionary era, bearing the reigning king's portrait, used as the standard silver crown-sized coin for over a century before decimalization.
European
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
Hamburg Thaler
A silver thaler struck by the free city-state of Hamburg, bearing the city's iconic castle-and-towers coat of arms, reflecting Hamburg's status as a leading Hanseatic trading center.
European
Vietnamese Tu Duc Thong Bao (cash coin)
A cast bronze or zinc cash coin issued under Emperor Tự Đức of Vietnam's Nguyễn Dynasty, round with a square center hole in the traditional East Asian style.
Asian