Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
United States Trade Dollar
A heavier silver dollar issued specifically for trade with China and East Asia, the Trade Dollar circulated internationally before being demonetized and later collected as a design classic.
United States
Unite
A gold twenty-shilling coin introduced by James I in 1604 to celebrate the union of the English and Scottish crowns, its name literally symbolizing the joining of the two kingdoms.
British
Groat (Fourpence)
A historic English silver coin worth four pence, first struck under Edward I in 1279 and periodically revived, later surviving mainly as a Maundy Money denomination.
British
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
Guinea
Historic British gold coin named for the West African region that supplied much of its gold, valued at 21 shillings for most of its history and predecessor to the modern sovereign.
British
Eukratides I Gold Stater (Baktria)
A gold stater of Eukratides I, the powerful Greco-Bactrian king best known for issuing the largest gold coin surviving from antiquity, depicting the divine twins Dioskouroi on horseback.
Ancient
Twenty Pence
A seven-sided UK coin introduced in 1982 to fill a gap between the ten pence and fifty pence denominations.
British
Half Guinea
Smaller companion gold coin to the guinea, worth half its value, struck across the same reigns from Charles II through George III for mid-value transactions.
British
Crown
Large British coin traditionally worth five shillings, historically struck in silver and famed for elaborate designs, now issued mainly as a cupro-nickel commemorative.
British
Gold Sovereign
Iconic British gold pound coin, revived in 1817 with Benedict Pistrucci's celebrated St George and the Dragon design, struck for centuries in London and branch mints worldwide.
British
Fifty Pence
The UK's distinctive seven-sided 50p coin, introduced in 1969 to replace the ten shilling note ahead of decimalisation.
British
Two Pound Coin
The UK's bimetallic £2 coin, standardized for circulation in the late 1990s, widely used for a rotating series of commemorative reverse designs.
British
Gold Half Sovereign
Smaller companion to the gold sovereign, struck since 1817 at half the weight and value, sharing the same monarch portraits and often the same St George reverse design.
British
Pound Coin
The United Kingdom's £1 coin, introduced in 1983 to replace the paper pound note, redesigned as a 12-sided bimetallic coin in 2017.
British
Spade Guinea
A George III gold guinea nicknamed for its spade-shaped shield reverse, one of the last widely circulated guinea types before the denomination was phased out in the early 1800s.
British
Cartwheel Twopence (1797)
An enormous two-ounce copper twopence struck in 1797, the largest coin ever produced for circulation in Britain, made famous for its heavy raised cartwheel-style rim.
British
Third Guinea
A small gold coin worth one-third of a guinea, or seven shillings, struck under George III in the years leading up to the introduction of the modern sovereign.
British
Cartwheel Penny (1797)
A massive, one-ounce copper penny struck in 1797 by Matthew Boulton's Soho Mint, nicknamed the Cartwheel Penny for its thick raised rim resembling a cart's wheel and axle.
British
Five Guinea
The largest regularly issued gold denomination of the guinea coinage system, worth five guineas, struck from the reign of Charles II through George II for major transactions and presentation purposes.
British
Two Guinea (Double Guinea)
A substantial gold coin worth two guineas, struck intermittently from the reign of Charles II through George II as part of England and Great Britain's early guinea coinage system.
British
Quarter Guinea
A rarely issued small gold coin worth one-quarter of a guinea, struck only in 1718 under George I and again briefly in 1762 under George III.
British
Theodosius I Solidus
A gold solidus of Theodosius I, the last emperor to rule a united Roman Empire and the ruler who made Nicene Christianity the state religion.
Ancient
Royal Mint £5 Crown Commemorative
The modern British £5 coin descends from the historic crown and is issued almost exclusively for commemorative purposes, marking royal events, anniversaries, and national milestones.
Commemorative
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