Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
Follis of Maximian
A large silvered-bronze follis of the emperor Maximian, introduced with Diocletian's coin reform of the Tetrarchy around AD 294.
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
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
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
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
Roman Imperial Denarius (Unidentified)
A silver denarius of the Roman Empire, 2nd century AD, showing an emperor's right-facing curly-haired portrait and a standing imperial reverse type.
Ancient
Byzantine Follis
Large bronze follis of the Byzantine Empire, this example under Constans II (from 641 AD), with an imperial portrait and a big M value mark topped by a cross.
Medieval
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
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
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
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
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
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
Byzantine Nummus of Tiberius Constantine
A small bronze coin of Byzantine emperor Tiberius II Constantine (AD 578-582), with an imperial portrait or inscription and a mark of value or monogram.
Ancient
Imperial Chervonets
A small imperial Russian gold chervonets bearing the right-facing bust of Peter III with regalia and the crowned double-headed eagle, dated 1762.
Early Modern
Roman As
A base-metal As of ancient Rome, showing the double-faced head of Janus on one side and a chariot with ROMA on the other.
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
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
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
Roman Siliqua
Small late-Roman silver coin of the 4th century AD, with an emperor's portrait facing right and a standing robed figure on the reverse.
Ancient
Roman Quinarius
A small Roman silver quinarius, half the value of a denarius, here with a helmeted head of Roma and a prancing horse on the reverse.
Ancient
Roman Victoriatus
Silver Roman Republican victoriatus of the late 3rd–2nd century BC, with the laureate head of Jupiter and a Victory crowning a trophy above ROMA.
Ancient
Ancient Roman Coin
An unattributed ancient bronze coin of the Roman Empire, showing a right-facing portrait head on the obverse and a figure or heraldic design on the reverse.
Ancient