Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Commemorative Follis of Constantinople
Bronze city-commemorative of Constantine's era (330-340 AD): helmeted Constantinopolis on the obverse, a Victory standing on a ship's prow on the reverse.
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
Antoninianus of Carus
Late-Roman bronze radiate of the emperor Carus (282-283 AD), showing his bearded, spiky-crowned head and a standing personification 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
Antoninianus of Julian of Pannonia
Copper-alloy radiate antoninianus attributed to Julian of Pannonia, with a spiked-crown portrait and an ORIENTIS RESTIT standing-figure reverse.
Ancient
Sestertius of Caligula
Large Roman imperial bronze sestertius bearing the head of Gaius, better known as Caligula, struck during his short reign from 37 to 41 AD.
Ancient Coins
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
Sestertius of Alexander Severus
Large Roman bronze sestertius of emperor Alexander Severus (222-235 AD), showing his youthful head and a standing figure of Providentia.
Ancient Coins
Roman Sestertius (Uncertain Emperor)
A large Roman imperial sestertius in bronze or orichalcum, heavily patinated with a bearded emperor's portrait and a reverse too worn to identify.
Ancient
Follis of Constantine I and Crispus
A late-Roman bronze follis linking Constantine the Great to his son Crispus, with the emperor's right-facing portrait and a paired father-and-son bust 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
Aureus of Nero
Roman imperial gold aureus of Emperor Nero (54-68 AD), showing his curly-haired portrait facing right with a Latin imperial legend.
Ancient Coins
British Sixpence
Small British silver sixpence (6d); this example is an 1888 Queen Victoria 'Jubilee head' with the crowned, veiled bust.
British Isles
Morgan Dollar
U.S. 90% silver dollar struck 1878–1904 and again in 1921, with George T. Morgan's Liberty head and a spread-winged eagle reverse.
Dollar
Macao 100 Patacas Return to China Commemorative
A 1999 Macao 100 patacas commemorative marking the return to China: a Portuguese ship with a gold center on one side, the Macao coat of arms on the other.
Commemorative
English Sixpence
A hammered silver sixpence of James I, showing his crowned profile bust and a quartered royal shield with a long cross on the reverse.
Hammered
Penny of Cynethryth
Anglo-Saxon silver penny of Cynethryth, queen of Mercia and wife of Offa, and the only Anglo-Saxon queen named on her own coinage.
Medieval Coins
Peace Dollar
U.S. 90% silver dollar first struck in 1921, with a radiant-crowned Liberty head and a perched eagle over the word PEACE.
Dollar
Anglo-Saxon Sceatta
Tiny thick silver coin of early Anglo-Saxon England, the example showing a stylized bird with geometric patterns and symbolic reverse designs.
Medieval Coins
Samanid Dirham
A hand-struck silver dirham of the Samanid dynasty, covered on both sides in Arabic Kufic script naming God, the caliph and the mint — no images at all.
Islamic (Medieval)
Frankfurt am Main Taler
A 1772 silver Taler of the Free Imperial City of Frankfurt am Main, famed for its detailed city-view reverse with walls, towers and radiant sun.
German States
Romania International Year of Chemistry Commemorative
Romanian silver 10 lei commemorative dated 2011, issued for the International Year of Chemistry with molecular, laboratory and scientist imagery.
Commemorative
Junk Dollar
China's Republic-era silver dollar with Sun Yat-sen facing left and a Chinese junk under sail on the reverse; the pictured coin is Year 23 (1934).
Circulation
Roman Denarius
A small hammered silver coin of ancient Rome, showing an emperor's portrait and abbreviated Latin titles on one side and a deity or figure on the other.
Ancient