Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Antoninianus of Caracalla
The antoninianus introduced by Caracalla around AD 215, a radiate-crowned double denarius in debased silver that reshaped Roman coinage.
Ancient
Connecticut Tercentennial Half Dollar
A 1935 U.S. silver half dollar marking 300 years of Connecticut, with a standing eagle on the obverse and the storied Charter Oak on the reverse.
Classic Commemorative
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
Elgin Illinois Centennial Half Dollar
A 1936 U.S. silver half dollar marking the centennial of Elgin, Illinois, with a bearded pioneer head and a pioneer-family memorial group on the reverse.
Classic Commemorative
Native American Dollar - Peratrovich
The 2020 U.S. golden dollar in the Native American series, honoring Tlingit civil rights leader Elizabeth Peratrovich and the 1945 Alaska Anti-Discrimination Law.
Dollar
Nemausus As/Dupondius (Crocodile Type)
The famous crocodile of Nimes: a large Roman provincial bronze with paired heads of Agrippa and Augustus and a crocodile chained to a palm.
Ancient
Roman Republican Denarius (Unidentified)
A silver Roman Republican denarius of about 115-114 BC: helmeted Roma on the obverse, Victory driving a two-horse chariot on the reverse.
Ancient
Sestertius of Caligula
Large Roman imperial bronze sestertius bearing the head of Gaius, better known as Caligula, struck during his short reign from 37 to 41 AD.
Ancient Coins
Sixpence of Elizabeth I
A hammered silver sixpence of Elizabeth I, showing the crowned, ruff-collared queen in profile and the royal shield, most bearing a date beside a mint mark.
Hammered
U.S. Capitol Bicentennial Silver Dollar
A 1994 U.S. Mint silver commemorative dollar honoring 200 years of the United States Capitol, featuring the Capitol dome and a heraldic eagle.
Modern Commemorative
Quincunx of Capua
Bronze quincunx (5 unciae) struck by Capua in Campania in the 3rd century BC, pairing a diademed female head with a lion or griffin and five value pellets.
Ancient
George IV One Eighth Spanish Dollar
Small 1822 British colonial silver coin from the George IV "Anchor Money," a fraction of the Spanish dollar used in the West Indies and Mauritius.
Colonial
Antoninianus of Carinus
Bronze radiate coin of the emperor Carinus (283-285 AD), recognizable by his spiked crown and a standing or seated deity on the reverse.
Ancient
Solidus of Arcadius
A late Roman gold solidus struck for Arcadius, first emperor of the East after AD 395, showing his diademed profile facing right.
Ancient
Solidus of Valentinian I
The gold solidus of Valentinian I (AD 364-375), a pure-gold coin bearing his pearl-diademed profile that anchored the late Roman monetary system.
Ancient
George IV One Quarter Spanish Dollar
An 1822 British colonial silver coin valued at one quarter of a Spanish dollar, part of the George IV "Anchor Money" issued for colonies in the Americas.
Colonial
Siliqua of Gratian
A small late Roman silver siliqua of the emperor Gratian (AD 367-383), with his diademed bust on the obverse and a standing figure or personification on the reverse.
Ancient
Sixpence of James I
A hammered silver sixpence of James I of England: crowned profile bust with VI value mark, and a dated garnished shield over a cross on the reverse.
Hammered
Bronze Coin of Cleopatra VII
Ptolemaic bronze coin of Cleopatra VII of Egypt, 51-30 BC, showing her draped diademed bust in profile as sole named female ruler of the dynasty.
Ancient
Gambia 20 Dalasis (Mungo Park Commemorative)
A 1994 silver 20 dalasis crown from The Gambia honoring Scottish explorer Mungo Park, shown with a sailing ship on the reverse.
World
Kotah State Rupee
Silver rupee of the princely state of Kotah in Rajputana, struck with Persian and Devanagari legends and the state's katar-dagger emblem.
Princely & Presidency States
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
Gibraltar Crown
A 1982 Gibraltar cupro-nickel crown marking the christening of Prince William, showing the Queen Mother and Princess Diana with the infant prince.
Commemorative
Solidus of Galla Placidia
A late Roman gold solidus struck in the name of Galla Placidia, empress and regent, showing her diademed bust and a Victory holding a long cross.
Ancient