Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
Guinea of George II
A milled gold guinea of Great Britain struck during the reign of George II, with a left-facing royal bust and a crowned heraldic shield reverse.
Milled
Edward I Groat
Rare early English silver fourpence of Edward I, showing his crowned facing-profile bust and a long-cross reverse with pellets in the quarters.
Medieval Coins
Solidus of Theodosius I
A late Roman gold solidus struck for the emperor Theodosius I (AD 379-395), showing his diademed portrait and the legend D N THEODOSIVS AVG.
Ancient
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
Mary I Groat
Hammered silver fourpence of Mary I (1553-1558), with her crowned bust left and the royal arms over a cross on the reverse.
Hammered
Edward III Groat
Hammered silver fourpence of King Edward III, showing a crowned bust of the king and a long cross with pellets in the quarters.
Medieval Coins
Prussian Taler
A large silver taler of the Kingdom of Prussia showing the crowned profile of Frederick II and a heraldic coat of arms, struck through the mid-to-late 1700s.
German States
Denier of Charlemagne
A hand-struck silver denier of Charlemagne, king of the Franks: a central cross ringed by the CARLVS REX FR legend, with a royal monogram design on the reverse.
Medieval
Celtic Gold Quarter Stater
A small Iron Age gold coin struck by the Celtic peoples of ancient Britain, valued at one-quarter of a full stater and marked by abstract, geometric designs.
Ancient
Irish Groat of Henry VIII
A hand-hammered silver fourpence struck for Ireland under Henry VIII, famed for introducing the crowned harp to Irish coinage.
Hammered
Half Groat of Henry VIII
A small hammered English silver coin worth twopence, struck across the reign of Henry VIII and bearing his crowned facing bust.
Hammered
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
Gold Dinar of Malik Shah I
A hand-struck Seljuk gold dinar naming Malik Shah I (r. 1072–1092), covered in Arabic inscriptions with the ruler's titles and genealogy and an ornamental cartouche.
Islamic (Medieval)
Macedonian Silver Tetradrachm
Large silver tetradrachm of ancient Macedon in the Alexander type, c. 188-170 BC, with the head of Heracles in a lion skin and Zeus enthroned holding an eagle.
Ancient
Keicho Oban
A large, thin oval Japanese gold oban of the Keicho era, hammer-marked with horizontal striations and bearing brush-inked ink signatures and paulownia crests.
Historic
Penny of Cnut
Anglo-Saxon silver penny of King Cnut (Canute), showing a diademed bust facing left with a cross-and-pellets reverse, struck c.1024-1030.
Medieval Coins
David II Groat
A hammered silver groat of David II of Scotland, showing his crowned portrait on the obverse and a Scottish shield with long-cross reverse.
Hammered
Henry VII Groat
Hammered silver fourpence of Henry VII, first Tudor king, showing a crowned royal portrait on one side and a shield of the English arms on the other.
Medieval Coins
Groat of Henry VIII
A hand-struck Tudor silver groat (fourpence) of Henry VIII, showing the quartered royal arms within a circle and a long cross reverse.
Hammered
Edward IV Groat
A hammered silver fourpence of King Edward IV of England, struck 1461-1483, with a crowned facing bust on one side and a long cross with rosettes on the other.
Medieval Coins
Antiochos III Tetradrachm
A large Seleucid silver coin of Antiochos III the Great, showing his diademed head and a seated deity holding shield and spear.
Ancient
Gold Stater of the Catuvellauni and Trinovantes
An Iron Age British gold stater of the Catuvellauni and Trinovantes, showing stylized wheat/barley ears on one face and a dynamic horse on the other.
Ancient
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