Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Saudi Arabian Silver Riyal
A large, portrait-free silver coin of King Abdul Aziz ibn Saud, covered in Arabic legends and a state seal — a cornerstone of early Saudi coinage.
World
Ghaznavid Dinar
Gold dinar of the Ghaznavid dynasty (c. 10th–11th century), an epigraphic Islamic coin struck at Ghazna and allied mints in Afghanistan.
Medieval Islamic
Sacagawea Dollar
U.S. golden-colored dollar coin showing Sacagawea and her infant son on the obverse and a soaring eagle on the reverse, struck 2000–2008.
Dollar
Capped Bust Half Dollar
U.S. fifty-cent silver coin struck 1807–1839, showing Liberty in a Phrygian cap surrounded by stars and a heraldic eagle on a shield.
Half Dollar
Follis of Maximian
A large silvered-bronze follis of the emperor Maximian, introduced with Diocletian's coin reform of the Tetrarchy around AD 294.
Ancient
Antoninianus of Caracalla
The antoninianus introduced by Caracalla around AD 215, a radiate-crowned double denarius in debased silver that reshaped Roman coinage.
Ancient
French Semeuse 50 Centimes
A small French silver coin showing the striding Semeuse (Sower) with a liberty cap; the reverse frames the value 50 CENTIMES in an oak-and-olive wreath.
Circulation
Prince Edward Island One Cent
Bronze one-cent coin struck in 1871 for the colony of Prince Edward Island, with Queen Victoria on the obverse and the island's name and date on the reverse.
Canadian & Provincial
Australian Crown
Australia's only crown (five-shilling) coin, a large sterling-silver piece struck in 1937 and 1938 with a George VI portrait and a crown reverse.
Australian
Australian Fifty Cents
Australia's 50 cent coin bearing the national coat of arms. The 1966 round issue shown here was struck in silver; later 12-sided coins are cupronickel.
Australian
Thailand One Baht
A silver one-baht coin of Siam struck under King Rama VI, its obverse bearing the young king's uniformed profile within Thai royal inscriptions.
Southeast Asia
Kiautschou 5 Cents
A 1909 nickel 5 Cent coin of the German-leased Kiautschou Bay territory in China, pairing Chinese characters with the German imperial eagle.
Colonial
100 Won
South Korea's everyday nickel 100 won coin, showing Admiral Yi Sun-sin in his winged helmet on the obverse and a large numeral 100 on the reverse.
Circulation
Antoninianus
Roman imperial coin of the crisis era, marked by a radiate (spiked) crown on the emperor's head; struck in debased silver-and-copper billon, c. 250-270 AD.
Ancient Coins
France 20 Centimes
A small gold-colored French Fifth Republic coin showing Marianne in profile, worth one-fifth of a franc, struck for four decades before the euro.
Circulation
Papua New Guinea 5 Kina
Papua New Guinea's 1975 five-kina coin: Queen Elizabeth II in profile on the obverse, a bird-of-paradise with the K5 denomination on the reverse.
Circulation
Anglo-Saxon Styca
A tiny base-metal coin of the Anglo-Saxon kingdom of Northumbria, struck in the 8th-9th century with a head and inscription on one side and a cross on the other.
Medieval Coins
Almohad Silver Dirham
A distinctive square silver coin of the Almohad Caliphate, covered on both faces with geometric Arabic religious inscriptions.
World
East Africa Protectorate 1 Cent
A small holed one-cent coin of the British East Africa Protectorate, struck in base metal with a crowned, portrait-free design around a central hole.
World
British East Africa Half Shilling
A small low-fineness silver coin of British East Africa bearing King George VI; the half shilling equalled fifty cents in the East African system.
World
Qian Feng Quan Bao
A round bronze Tang cash coin with a square center hole, cast under Emperor Gaozong in the short-lived Qianfeng era and worth ten ordinary cash.
Cash Coin
Turban Head Quarter Eagle
First U.S. $2.50 gold coin (1796), designed by Robert Scot; Liberty in a soft cap facing right with a heraldic eagle reverse. Extremely rare.
United States
Washington Quarter
U.S. twenty-five-cent coin introduced in 1932, showing George Washington's profile and an eagle reverse; early issues struck in 90% silver.
Quarter
Minnesota State Quarter
2005 U.S. 25-cent coin in the 50 State Quarters series, showing Minnesota's outline, a common loon, anglers in a boat, and pines above 1858.
Quarter