Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Sovereign of George IV
A milled gold sovereign of Great Britain struck under George IV, with the king's laureate head and Pistrucci's St George slaying the dragon reverse, dated 1821.
Milled
Gold Dinar of Baybars I
A hand-struck gold coin of the Mamluk sultan Baybars I, covered on both faces with Arabic calligraphy naming the ruler and struck in Egypt between 1260 and 1277 CE.
Islamic
Half Sovereign of George III
British 22-carat gold half sovereign of George III, introduced in 1817 with a laureate bust and a crowned shield of arms; face value ten shillings.
Milled
Halfcrown of William III
A silver two-shilling-and-sixpence coin of William III showing his laureate profile facing right and crowned cruciform shields of arms, dated 1696.
Milled
Bill of Rights Silver Dollar
A 1993 U.S. silver dollar honoring the bicentennial of the Bill of Rights, showing a Liberty figure with torch and flags and an eagle above Montpelier.
Modern Commemorative
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
Gold Dinar of al-Muqtadi
An aniconic Abbasid gold dinar of Caliph al-Muqtadi, covered on both faces with Arabic calligraphy and ornamental borders, struck in the later 11th century.
Islamic (Medieval)
Denarius of Marcus Aurelius
Roman silver denarius of Marcus Aurelius (c. 170-171 AD): laureate bearded emperor on the obverse, a standing personification on the reverse.
Ancient
Milled Sixpence of Elizabeth I
An early machine-struck English silver sixpence of Elizabeth I, showing her crowned draped bust with a rose and the royal shield above a date.
Milled
Battle of Antietam Half Dollar
A 1937 U.S. silver half dollar marking 75 years since the Civil War Battle of Antietam, with jugate busts of Lee and McClellan and Burnside Bridge on the reverse.
Classic Commemorative
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
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
Sestertius of Didius Julianus
A large bronze/orichalcum sestertius of Didius Julianus, the emperor who reigned only weeks in 193 AD — rare, historically charged, and much sought after.
Ancient
Denarius of C. Antius Restio
Silver Roman Republican denarius struck at Rome in 47 BC by the moneyer C. Antius Restio, pairing an ancestor's portrait with a striding figure and trophy.
Ancient
Denarius of Antoninus Pius
Silver denarius of the Roman emperor Antoninus Pius (138–161 AD), with his laureate portrait facing right and a legend-and-figure reverse.
Ancient
Fatimid Dinar of Imam Nizar
An 11th-century Fatimid gold dinar with concentric circular Kufic inscriptions naming the ruler and Shi'a invocations, a hallmark of Fatimid coinage.
Islamic (Medieval)
Denarius of Augustus
Silver denarius of Augustus (c. 19-18 BC) with his bare head and a comet-star of the deified Julius Caesar, inscribed DIVVS IVLIVS.
Ancient Coins
Aureus of Faustina II
Roman imperial gold coin with the draped bust of Faustina II, daughter of Antoninus Pius and wife of Marcus Aurelius, struck around 147-150 AD.
Ancient Coins
Aureus of Marcus Aurelius
Small Roman gold coin of the reign of Marcus Aurelius; this piece shows a diademed portrait and a standing deity or personification, dated to 163 AD.
Ancient Coins
Half Escudo (800 Reis) of Joao V
A small Portuguese gold coin of King Joao V, valued at half an escudo (800 reis), with his laureate bust and a crowned Portuguese shield.
Colonial
Crown of George III (Incorrupta)
A milled crown of George III dated 1817, named for its INCORRUPTA reverse legend, showing a laureate draped bust and crowned royal arms.
Milled
Tetradrachm of Ptolemy VIII
Silver tetradrachm of Ptolemy VIII of Egypt, c. 170-116 BC, with a diademed royal head on the obverse and an eagle on a thunderbolt reverse.
Ancient
Silver Dirham of Sayf ad-Din Inal
A thin Mamluk silver dirham of Sultan al-Ashraf Sayf ad-Din Inal (r. 1453–1461), covered on both faces with Arabic inscriptions naming the sultan and his titles.
Islamic