Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Netherlands Rijksdaalder
A historic large silver crown-sized coin of the Low Countries, the rijksdaalder became a trusted trade coin across Europe for centuries and lent its name to the modern Dutch 2½-guilder piece.
European
Saxony Thaler
Saxony was one of the earliest and most prolific issuers of thalers, with the electorate and later kingdom producing large silver coins from the 16th century until German unification.
European
Byzantine Miliaresion
The main large silver coin of the middle Byzantine Empire, introduced in the 8th century and typically featuring a plain cross on steps, reflecting the era's Iconoclast religious tensions.
Ancient
English Crown
A large English silver coin worth five shillings, first struck under Henry VIII, that became one of Britain's most artistically celebrated denominations before decimalization.
British
Bavaria Thaler
The historic large silver coin of Bavaria, struck across centuries by its electors and kings, capturing the state's political and artistic history until Germany's currency unification in the 1870s.
European
Diocletian Follis
Large bronze follis of Diocletian, whose sweeping reforms ended the Crisis of the Third Century, established the Tetrarchy, and introduced this new standardized coin denomination in 294 AD.
Ancient
Syracuse Decadrachm
A large, exquisitely engraved silver coin from the Greek city of Syracuse, celebrated as one of the finest achievements of ancient Greek numismatic art, featuring the nymph Arethusa and a victorious chariot.
Ancient
1950-D/S Washington Quarter Overmintmark
A famous mid-century mintmark error where a Denver quarter die was first punched with an S mintmark and then re-punched with a D, leaving traces of both letters visible.
Errors & Varieties
Spanish 4 Reales
A mid-value denomination of Spain's traditional real-based coinage, struck for centuries in both Spain and its American colonies.
European
Ottoman Para
A small fractional Ottoman coin, historically 1/40 of a kurus, struck for centuries in varying metals as the empire's lowest everyday denomination.
World
Standing Liberty Quarter
An early 20th-century silver quarter featuring a striding figure of Liberty, prized for its artistic Type I 'bare breast' design and later modified Type II version.
United States
Half Groat
A small hammered silver coin worth half the value of the groat, or two pence, struck across three centuries of English coinage from the reign of Edward III through the Stuart era.
British
1955 Jefferson Nickel Poor Man's Doubled Die
A minor doubled-die variety on the 1955 Jefferson Nickel's date, nicknamed the 'Poor Man's Doubled Die' as a more affordable alternative to the famous 1955 doubled-die Lincoln Cent.
Errors & Varieties
Persian Gold Toman (Qajar)
The principal gold coin of Qajar Persia, valued at ten silver kran, struck under a succession of shahs from the late 18th century until the dynasty's end in 1925.
Asian
1 Euro Coin
The standard circulating one-euro coin used across the Eurozone since 2002, bimetallic with a gold-colored center and silver-colored ring, and a national obverse that varies by issuing country.
European
Double Sovereign
A British gold coin worth two pounds, twice the value of the standard sovereign, struck intermittently since the nineteenth century for commemorative and bullion purposes.
British
Half Crown Gold
A small gold coin worth half a gold crown, struck from the reign of Henry VIII through the English Civil War, distinct from the far more familiar silver half crown that circulated for centuries afterward.
British
Abbasid Gold Dinar
The standard gold coin of the Abbasid Caliphate centered on Baghdad, inscribed entirely in Arabic script and struck for roughly five centuries across a vast Islamic empire.
World
Indian Gold Mohur
The traditional high-value gold coin of the Indian subcontinent, struck for centuries by Mughal emperors, later by the British East India Company, British India, and various princely states.
Asian
Islamic Silver Dirham (Abbasid)
The standard silver coin of the Abbasid Caliphate, continuing the text-only Kufic script tradition and widely used across a vast medieval trade network stretching from Europe to Central Asia.
Ancient