Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
Antoninianus of Caracalla
The antoninianus introduced by Caracalla around AD 215, a radiate-crowned double denarius in debased silver that reshaped Roman coinage.
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
Antoninianus of Tetricus I
A billon antoninianus of the Gallic emperor Tetricus I (270–273 AD), showing his radiate portrait and a standing figure of Pax on the reverse.
Ancient
Antoninianus of Gallienus
Billon double-denarius of the emperor Gallienus, marked by a radiate crown; this piece shows a radiate male head and a standing deity on the reverse.
Ancient Coins
Gold Dinar of al-Hafiz li-Din Allah
A hand-struck Fatimid gold dinar of the caliph al-Hafiz li-Din Allah, carrying only Arabic calligraphy in concentric ring borders and dated AH 544.
Islamic (Medieval)
Antoninianus of Laelianus
Rare billon antoninianus of the short-lived Gallic usurper Laelianus, showing his radiate-crowned bust and a Roman deity or personified virtue.
Ancient Coins
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)
Gold Dinar of Abu'l-Hasan Ali
A high-purity Islamic gold dinar dated AH 351 (961-962 CE) in the name of the Ikhshidid ruler Abu'l-Hasan Ali, struck in fully calligraphic Kufic script.
Islamic (Medieval)
Solidus of Justinian I
Byzantine gold solidus of Emperor Justinian I (527-565 AD), showing his crowned imperial bust with a seated figure on the reverse.
Ancient Coins
Nummus of Magnentius
A late Roman bronze struck for the usurper Magnentius (AD 350-353), noted for its bold bare-headed portrait and large Chi-Rho reverses.
Ancient
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
Nummus of Maximianus
A late-Roman bronze nummus (follis) of the emperor Maximianus, with his right-facing laureate portrait and a standing deity on the reverse.
Ancient
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
Follis of Diocletian
A large silver-washed bronze coin of the Tetrarchy, introduced by Diocletian's currency reform around AD 294 with a stern laureate portrait.
Ancient
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
Antoninianus of Gordian III
Silver double-denarius of the young emperor Gordian III (238-244 AD), marked by his radiate crown and a standing deity on the reverse.
Ancient
Antoninianus of Valerian II
Roman radiate coin of Valerian II, the young Caesar (c. 253-260 AD), showing his spiked crown and a standing figure on the reverse.
Ancient
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
Denarius of C. Papius Mutilus
Silver denarius bearing the name C PAPIUS MUTILUS, a Social War-era Italic type of c. 90 BC with a portrait bust and a horseman or chariot reverse.
Ancient
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
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
Gold Dinar of Ahmad ibn Tulun
A late-9th-century Islamic gold dinar of the Tulunid ruler Ahmad ibn Tulun, its faces filled with concentric Arabic inscriptions and dated AH 268 (881–882 CE).
Islamic (Medieval)
Nummus of Constantine I
Small late Roman bronze nummus (follis) of Constantine I the Great (306-337 CE), identified by his right-facing imperial portrait on the obverse.
Ancient