Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.

Type 3 Indian Princess Gold Dollar
The final and longest-running design of the U.S. gold dollar, featuring a larger, better-struck Native American princess portrait than its short-lived Type 2 predecessor.
United States
Chinese Spade Money (Bu Coin)
An early Chinese bronze currency shaped like a miniature farming spade, used across several competing Zhou-era states before round coinage became standardized.
Asian
1892 Barber Quarter
The first-year issue of the Barber quarter series, introducing Charles Barber's new Liberty Head design after the retirement of the earlier Seated Liberty quarter.
United States
1937 Doubled Die Obverse Buffalo Nickel
A doubled die variety of the 1937 Buffalo nickel showing visible doubling in the obverse date and lettering, collected alongside other notable varieties from the final years of the Buffalo nickel series.
Errors & Varieties
New Jersey Copper
State-authorized copper coinage struck for New Jersey in the late 1780s, famous for its horse-head-and-plow obverse and shield reverse design.
United States
Type 2 Indian Princess Gold Dollar
A short-lived, notoriously weakly struck redesign of the U.S. gold dollar, prized today for its brief production window and the striking difficulties that led to its quick replacement.
United States
1793 Liberty Cap Half Cent
The first-year half cent, struck in 1793 with a distinctive 'Head Facing Left' Liberty Cap design used only that single year before the design was revised.
United States
1938-D/S Buffalo Nickel Overmintmark
The famous final-year Buffalo nickel variety showing a D mintmark punched over a leftover S, created when Denver reused a die originally prepared for San Francisco.
Errors & Varieties
1804 Draped Bust Eagle
The final date of the original ten-dollar gold eagle series before a 33-year production halt, later followed by a small number of 1834 diplomatic-gift restrikes made using a similarly dated die.
United States
1921-D Mercury Dime
A key-date silver dime from a post-WWI recession year when Denver struck only a small number of Mercury dimes, making it a cornerstone of the series.
United States
Syracuse Dekadrachm (Kimon)
A magnificent silver dekadrachm from ancient Syracuse signed by the master engraver Kimon, prized as one of the finest achievements of Greek coin art.
Ancient
Japanese Bu / Ichibu-gin (silver bar coin)
Rectangular silver bar-shaped coin used as fixed-value currency in Tokugawa Japan, valued as a fraction of the gold ryo rather than by weight.
Asian
Liberty Cap Half Cent
The first design used on the U.S. half cent, struck from 1793 to 1797, showing Liberty wearing a soft cap on the obverse and a wreath on the reverse.
United States
Capped Bust Quarter Eagle
An umbrella term for the earliest U.S. $2.50 gold coins (1796-1834), whose Liberty-in-a-cap portrait evolved through several sub-types, including the famous single-year 1808 issue.
United States
Capped Bust Right Half Eagle
America's first five-dollar gold coin, struck 1795-1807 with Liberty facing right under a soft cap, first paired with a small perched eagle reverse and later a bold heraldic eagle.
United States
Half Farthing
A tiny copper coin worth one-eighth of a penny, struck mainly for use in colonial Ceylon during the reigns of George IV, William IV, and Victoria.
British
Halfpenny
A small British bronze coin worth half a penny, best known in its twentieth-century form featuring Sir Francis Drake's ship the Golden Hind on the reverse.
British
Carthage Zeugitania Electrum Stater
A gold-silver electrum coin struck by Carthage, chiefly to fund its wars in Sicily, showing a wreathed female head and a horse or horse's head.
Ancient
Leontini Lion Tetradrachm
Silver tetradrachm of the Sicilian city of Leontini, showing the laureate head of Apollo and a lion's head or lion with barley grains, alluding to the city's wheat production.
Ancient
Quarter Farthing
The smallest fractional denomination in British coinage, worth one-sixteenth of a penny, struck primarily for use in colonial Ceylon during Victoria's reign.
British
Third Farthing
An extremely small denomination worth one-twelfth of a penny, struck mainly to serve the currency needs of the British colony of Malta across the nineteenth and early twentieth centuries.
British
Anglo-Saxon Silver Sceat
Small, thick early Anglo-Saxon silver coin with enigmatic pagan and Christian imagery, the direct forerunner of the later English penny.
British
Chalkidian League Apollo Tetradrachm
Silver tetradrachm issued by the Chalkidian League of northern Greek cities, showing the laureate head of Apollo and a lyre, minted at Olynthus.
Ancient
Rhodes Rose and Helios Tetradrachm
A silver tetradrachm from the island of Rhodes, pairing a radiant frontal head of the sun god Helios with the island's punning emblem, a rose.
Ancient