Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Double Sovereign
A British gold coin worth two pounds, twice the value of the standard sovereign, struck intermittently since the nineteenth century for commemorative and bullion purposes.
British
Abbasid Gold Dinar
The standard gold coin of the Abbasid Caliphate centered on Baghdad, inscribed entirely in Arabic script and struck for roughly five centuries across a vast Islamic empire.
World
Byzantine Gold Semissis
A scarce half-value gold fraction of the Byzantine solidus, struck in smaller numbers than the tremissis and often associated with ceremonial or donative purposes.
Ancient
Half Crown Gold
A small gold coin worth half a gold crown, struck from the reign of Henry VIII through the English Civil War, distinct from the far more familiar silver half crown that circulated for centuries afterward.
British
1972 Eisenhower Dollar (Type 2)
A scarce reverse variety of the 1972 Eisenhower dollar, distinguished by a more detailed, higher-relief rendering of the Earth behind the moon-landing eagle, and prized by variety collectors.
Errors & Varieties
1918/7-D Buffalo Nickel Overdate
A famous overdate error on the Buffalo Nickel where a leftover 1917 working die was hand-repunched with an 1918 date, leaving traces of the underlying 7 visible beneath the 8.
Errors & Varieties
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
1955 Poor Man's Doubled Die Lincoln Cent
A more common, lower-value doubled die variety on the 1955 Lincoln cent, nicknamed the 'poor man's' version because it offers a similar doubled-image look to the famous 1955 Doubled Die Obverse at a fraction of the price.
Errors & Varieties
1971 British Columbia Dollar
A commemorative Canadian dollar marking the centennial of British Columbia joining Canadian Confederation in 1871, issued in both nickel circulation and silver collector versions.
Canadian
Demetrios Poliorketes Nike Tetradrachm
A Hellenistic silver tetradrachm of Demetrios I of Macedon, celebrated for its obverse image of Nike standing on a ship's prow, commemorating his naval victory at Salamis in Cyprus.
Ancient
Half Angel (Angelet)
A small English gold coin worth half the value of the Angel, sharing its famous design of the Archangel Michael slaying a dragon, issued across several reigns from Edward IV to James I.
British
Islamic Silver Dirham (Abbasid)
The standard silver coin of the Abbasid Caliphate, continuing the text-only Kufic script tradition and widely used across a vast medieval trade network stretching from Europe to Central Asia.
Ancient
1849 Double Eagle
A unique pattern coin, the very first double eagle ever struck by the U.S. Mint, made to test the newly authorized twenty-dollar denomination; the sole surviving example is held by the Smithsonian.
United States
Bronze Indian Head Cent
The bronze-alloy Indian Head cent struck from 1864 through 1909, replacing the earlier copper-nickel version and serving as the last cent design before Lincoln's portrait appeared in 1909.
United States
1804 Draped Bust Quarter
The key date of the short Draped Bust, Heraldic Eagle quarter series, the 1804 issue had a very small original mintage and ranks among the rarest and most valuable early United States quarters in any condition.
United States
Draped Bust Eagle
The formal catalog name for the first U.S. ten-dollar gold coin once it adopted a bold heraldic eagle reverse in 1797, the same coin popularly nicknamed the 'Turban Head' eagle.
United States
Siam Tin Pot Duang / Porcelain Gambling Token
Two related forms of traditional Siamese small change: tin versions of the bent bullet-shaped pot duang currency, and porcelain gambling tokens used informally as local currency in Chinese-run gaming houses.
Asian