Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Trinidad and Tobago 50 Cents
A large copper-nickel Caribbean circulation coin; the 1967 example carries the national coat of arms and country name on the obverse and the 50-cent value on the reverse.
CirculationBermuda Half Penny
A colonial-era copper-nickel half penny tied to Bermuda, showing a lion-crested coat of arms with pineapples and a Latin motto, dated 1909.
ColonialGold Sovereign
The British gold sovereign: a one-pound gold coin. This 1817 George III example shows a laureate bust and a crowned heraldic shield of the royal arms.
WorldSpade Guinea
A late George III gold guinea named for the distinctive spade-shaped shield on its reverse, struck in England from 1787 into the early 1800s.
MilledIrish Halfpenny of Charles II
A milled copper halfpenny struck for Ireland under Charles II, with his right-facing laureate bust and a crowned Irish harp on the reverse.
MilledCharles II Half Guinea
A small milled gold coin of Charles II showing the king's laureate profile and a cruciform arrangement of crowned shields on the reverse.
MilledCharles II Five Guineas
The largest English gold coin of Charles II's reign, showing his laureate profile and a cruciform arrangement of crowned shields on the reverse.
MilledCrown 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.
MilledAntoninianus of Aurelian
Late Roman billon coin of Emperor Aurelian, showing his radiate-crowned bust and a standing deity or personification on the reverse.
Ancient CoinsHong Kong Trade Dollar
A large silver British Trade Dollar with standing Britannia on the obverse and a Chinese dragon reverse, made for commerce across the Far East.
CirculationDurango 5 Centavos
A copper 5 centavos struck in the State of Durango during the Mexican Revolution, showing a large numeral 5 and the Mexican national eagle, dated 1914.
RevolutionaryEritrea 1 Tallero
A large silver trade dollar struck for Italian Eritrea under King Umberto I, carrying crowned heraldic arms and a Savoy eagle, dated 1891.
WorldAmerican Palladium Eagle
The U.S. Mint's one-ounce .9995 fine palladium bullion coin, launched in 2017 with classic Weinman Mercury dime and eagle designs.
BullionAguascalientes 20 Centavos
A copper 20 centavos struck in Aguascalientes during the Mexican Revolution in 1915, showing the denomination on one side and a large numeral 20 with the national eagle on the other.
RevolutionaryTetradrachm of Antiochos I Soter
A large Seleucid-era silver coin of Antiochos I Soter, showing a helmeted bearded royal head and a standing elephant, a symbol of eastern military power.
AncientSeleucus I Nicator Tetradrachm
Large silver tetradrachm of Seleucus I Nicator, founder of the Seleucid Empire, showing a horned Alexander-type head and a mounted figure with a spear.
AncientFollis of Constantius Chlorus
Large silvered-bronze follis of Constantius I (Chlorus), the Tetrarchic emperor and father of Constantine, showing his laureate portrait facing right.
AncientSestertius of Marcus Aurelius
A large Roman bronze sestertius struck during the reign of Marcus Aurelius (161–180 CE), with his laureate portrait facing right and a Latin legend.
AncientNummus 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.
AncientDenarius of Nerva
Roman Imperial silver denarius of Emperor Nerva (96-98 AD), with his laureate portrait and the legend IMP NERVA CAES AVG, and a seated Concordia reverse.
AncientDenarius of Nero
Silver denarius of the emperor Nero (AD 54-68), the last Julio-Claudian ruler, shown with a laureate portrait and a military-standards reverse.
AncientDenarius of Caracalla
A silver denarius of the Roman emperor Caracalla, struck 198–217 CE, showing his laureate right-facing bust and a Latin legend encircling the design.
AncientRijksdaalder van Leicester
A large silver Dutch rijksdaalder of the Leicester type, with a helmeted armored bust and ruff on the obverse and a compartmented heraldic shield on the reverse.
Early Modern1 Riksdaler Specie
Large silver Riksdaler Specie of Sweden under King Oscar I, dated 1845, bearing his right-facing portrait, royal motto, and the Swedish coat of arms.
Modern