Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Constantine the Great Follis
A bronze coin of Constantine the Great, the emperor who legalized Christianity and founded Constantinople, struck at numerous mints across a transforming empire.
Ancient
Alexander the Great Tetradrachm
The widely circulated silver coin of Alexander the Great, showing Herakles wearing a lion skin on the obverse and an enthroned Zeus on the reverse, struck across his empire and for generations after his death.
Ancient
Korean 1 Yang Silver (Joseon/Great Han Empire)
Silver 1 Yang coin from Korea's late Joseon currency reform of the 1890s, part of the kingdom's first modern, machine-struck decimal coinage.
Asian
Philip II of Macedon Gold Stater
A gold stater struck under Philip II of Macedon, father of Alexander the Great, widely circulated and imitated across the ancient Mediterranean and beyond.
Ancient
Kushan Gold Dinar of Kanishka
A gold dinar of the great Kushan emperor Kanishka I, famous for its rich mix of Greek, Iranian, Indian, and Buddhist deities depicted on the reverse.
Ancient
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
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
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
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
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
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
British Guinea
England's premier gold coin for over 150 years, named for the West African region that supplied much of its gold and eventually valued at 21 shillings.
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
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
Trajan Denarius
The silver coin of Emperor Trajan, whose reign marked the Roman Empire's greatest territorial extent, with coin types celebrating his Dacian conquests and vast building program.
Ancient
British Gold Guinea
Struck from 1663 to 1814 and named for the West African gold used in its earliest issues, the guinea was Britain's leading gold coin and gave its name to a unit of value still referenced today.
British
Ephesus Bee Tetradrachm
A silver coin from the Ionian city of Ephesus featuring a bee, sacred symbol of the great Temple of Artemis, paired with a stag on the reverse.
Ancient
1932-D Washington Quarter
The key date of the Washington quarter series, struck in Denver during the depths of the Great Depression with a very low mintage.
United States
Lysimachos Tetradrachm (Alexander/Athena)
A silver tetradrachm struck by King Lysimachos, one of Alexander the Great's successors, showing the deified Alexander with a ram's horn and a seated Athena on the reverse.
Ancient
Chilean Peso Silver 'Condor'
Chile's standard silver peso coin, nicknamed the "condor" for the great Andean bird featured as a supporter on the national coat of arms depicted on the coin.
Latin American
1874-CC Seated Liberty Dime
A rare Carson City dime with arrows at the date, struck in small numbers and highly prized as one of the great condition rarities among CC-mint dimes.
United States
1802 Draped Bust Half Dime
One of the great rarities of early U.S. coinage, with an extremely small original mintage and only a handful of genuine survivors known today.
United States
Constantius I Chlorus Follis
Reform-era bronze follis of Constantius I Chlorus, Caesar and later Augustus of the western Tetrarchy, remembered chiefly as the father of Constantine the Great.
Ancient
Australian Penny (1930)
Regarded as the key date of Australian pre-decimal coinage, the 1930 penny is famous for an exceptionally small mintage during the Great Depression.
Africa & Oceania