Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Penny of William I
Hammered silver penny of William the Conqueror, the example showing a profile portrait of the king and a decorated cross reverse, struck circa 1075.
Medieval Coins
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
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
Antoninianus of Carinus
Bronze radiate coin of the emperor Carinus (283-285 AD), recognizable by his spiked crown and a standing or seated deity on the reverse.
Ancient
Denarius of Lucius Verus
A silver Roman denarius of the emperor Lucius Verus (161–169 AD), showing his curly-haired, bearded portrait facing right with a Latin legend.
Ancient
Denarius of M. Sanquinius
A silver denarius struck at Rome in 17 BC by the moneyer M. Sanquinius under Augustus, tied to the Secular Games, with a male portrait and a standing herald.
Ancient
Penny of Alfred the Great
Hand-struck silver penny of Alfred the Great of Wessex, showing a right-facing royal bust and a cross-based reverse with a moneyer's inscription.
Medieval Coins
Siliqua of Gratian
A small late Roman silver siliqua of the emperor Gratian (AD 367-383), with his diademed bust on the obverse and a standing figure or personification on the reverse.
Ancient
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
Sixpence of James I
A hammered silver sixpence of James I of England: crowned profile bust with VI value mark, and a dated garnished shield over a cross on the reverse.
Hammered
Shilling of James I
Hammered silver shilling of King James I, showing his crowned left-facing bust and a quartered heraldic shield of England, Scotland, Ireland and France.
World Coins
Half Guinea of Anne
An English milled gold half guinea of Queen Anne, showing her left-facing bust and a crowned cruciform reverse of shields with fleurs-de-lis.
Milled
Groat of William IV
A small silver fourpenny piece of William IV (1836–1837), with a seated Britannia reverse; the coin that revived the modern British groat.
Milled
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
Tetradrachm of Ptolemy IV
Silver tetradrachm of Ptolemy IV Philopator, 221-204 BC, with the jugate busts of Sarapis and Isis on the obverse and an eagle on a thunderbolt on the reverse.
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
Solidus of Constantius II
Late Roman gold solidus of Emperor Constantius II (337-361 AD), showing his diademed bust facing right paired with a seated-figure reverse.
Ancient Coins
Ilkhanid Dirham of Ghazan
A silver dirham of the Mongol Ilkhanate struck for Ghazan Khan, with an ornamental cartouche bearing the ruler's name and concentric Arabic and Persian inscriptions.
Islamic (Medieval)
Threepence of Elizabeth I
A hammered silver threepence of Elizabeth I, showing her crowned profile with a rose behind and a dated shield reverse, struck across her long reign.
Hammered
Dirham of Caliph al-Mansur
An Abbasid silver dirham dated AH 150 (767 CE), from the reign of Caliph al-Mansur, bearing purely Arabic religious inscriptions and a named mint.
Islamic (Medieval)
Solidus of Arcadius
A late Roman gold solidus struck for Arcadius, first emperor of the East after AD 395, showing his diademed profile facing right.
Ancient
Solidus of Honorius
A late Roman gold solidus of Emperor Honorius (r. 393-423 CE), with his diademed bust and an armored standing figure holding a spear and shield.
Ancient
Follis of Licinius I
A small bronze follis of the emperor Licinius I (AD 308-324), showing his portrait and a standing deity reverse, struck around AD 320-321.
Ancient
Denarius of Domitian
Silver denarius of the emperor Domitian (81-96 AD), with his laureate portrait on the obverse and, typically, the goddess Minerva on the reverse.
Ancient