Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Thailand One Baht
A silver one-baht coin of Siam struck under King Rama VI, its obverse bearing the young king's uniformed profile within Thai royal inscriptions.
Southeast Asia
Follis of Constantius Chlorus
Large silvered-bronze follis of Constantius I (Chlorus), the Tetrarchic emperor and father of Constantine, showing his laureate portrait facing right.
Ancient
Xuantong Yuanbao 7 Mace 2 Candareens
A late Qing silver dollar-size coin of the Xuantong era (1909-1911), reading 宣統元寶 on the obverse with a Chinese dragon on the reverse.
Circulation
Follis of Galerius
A large silvered bronze follis of the emperor Galerius (Augustus AD 305-311), struck across the Tetrarchic mints with a laureate portrait and a standing deity reverse.
Ancient
5 Francs (First Republic)
A large silver 5-franc crown of the French First Republic, dated by the revolutionary calendar as L'an 9 (1800–1801), with a right-facing Liberty head.
Circulation
German 10 Deutsche Mark Commemorative
A West/unified German silver 10 Deutsche Mark commemorative; this 1995 issue honors Heinrich der Loewe (Henry the Lion) with the Federal Eagle reverse.
Commemorative
Venetian Grosso (Matapan)
High-purity silver Grosso of medieval Venice: the Doge kneeling before St. Mark on the obverse, an enthroned Christ on the reverse.
Medieval
Maundy Three Pence
A tiny sterling-silver threepence tied to Britain's Royal Maundy tradition; the photographed 1687 coin shows James II's bust and a crowned Roman numeral III.
Maundy
English Shilling
English silver shilling of William III, showing his right-facing laureate bust and a crowned cruciform-shield reverse; this example is dated 1692.
World Coin
Washington Quarter
U.S. twenty-five-cent coin introduced in 1932, showing George Washington's profile and an eagle reverse; early issues struck in 90% silver.
Quarter
50 Sen (Dragon Type)
A Meiji-era Japanese silver 50 sen: a coiled dragon on one face, a sunburst-and-wreath value design on the other, dated Meiji 4 (1871).
Circulation
Ottoman Manghir
The manghir was the small copper coin of the Ottoman Empire, used for everyday change; this example bears a tughra and dates to the reign of Murad II.
Medieval Islamic
Solidus of Valens
A late Roman gold solidus struck for Valens, eastern emperor from AD 364 to 378, showing his diademed profile facing right.
Ancient
Solidus of Valentinian I
The gold solidus of Valentinian I (AD 364-375), a pure-gold coin bearing his pearl-diademed profile that anchored the late Roman monetary system.
Ancient
Solidus of Valentinian II
A late Roman gold solidus struck for Valentinian II, showing his diademed profile with the obverse legend D N VALENTINIANVS, from the 380s AD.
Ancient
Roman Quadrans
A small Roman bronze quadrans, worth a quarter of an as, here a heavily corroded piece with a laureate head facing right.
Ancient
Solidus of Gratian
Late Roman gold solidus of Emperor Gratian (r. 367–383 CE), showing his curly-haired, diademed, draped and cuirassed portrait.
Ancient
Solidus of Theodosius I
A late Roman gold solidus struck for the emperor Theodosius I (AD 379-395), showing his diademed portrait and the legend D N THEODOSIVS AVG.
Ancient
Solidus of Galla Placidia
A late Roman gold solidus struck in the name of Galla Placidia, empress and regent, showing her diademed bust and a Victory holding a long cross.
Ancient
Roman Follis (AE3)
A small late Roman bronze follis of the Constantine I era (AD 320-330), with an emperor's profile obverse and a Victory or vota-in-wreath commemorative reverse.
Ancient
Roman Centenionalis
A small fourth-century Roman bronze coin, part of the reformed low-value currency struck across the empire's mints during a period of frequent monetary change.
Ancient
Solidus of Constantine I the Great
Constantine the Great's gold solidus, a high-purity coin struck from about AD 309 that became the standard of late Roman and Byzantine gold.
Ancient
Follis of Crispus
A small bronze follis of Crispus, eldest son of Constantine the Great, with his diademed bust and a winged Victory reverse (317-326 AD).
Ancient
Centenionalis of Constans
A mid-4th-century Roman bronze of Constans bearing the FEL TEMP REPARATIO reform reverse, showing a soldier lifting a small captive from a hut.
Ancient