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

Ottoman 20 Kurus
Ottoman silver coin denominated in kuruş, bearing the sultan's ornate calligraphic tughra rather than a portrait, in keeping with Islamic artistic tradition.
World
Brazilian 2000 Reis Silver
The largest common silver coin of the Brazilian Empire, bearing the portrait of Emperor Pedro II across several design types spanning his long reign.
Latin American
Canadian Toonie
Canada's bimetallic two dollar coin, introduced in 1996 with a polar bear reverse, whose nickname blends "two" with "loonie."
Canadian
Japanese Nishu-kin (gold coin)
Small rectangular gold coin from Tokugawa Japan valued at two shu, or one-eighth of a ryo, part of a fractional gold denomination system unique to Edo-period currency.
Asian
Chilean 20 Pesos Gold
The smallest of Chile's regular gold coin denominations, issued both in an earlier 19th-century gold peso series and later as part of the 1926 condor-themed gold reform.
Latin American
French 20 Franc Rooster
A French Third Republic gold coin replacing royal and imperial portraits with republican symbolism: Marianne on the obverse and a standing Gallic rooster on the reverse.
European
Swiss 20 Franc Vreneli
Switzerland's classic gold franc coin, depicting a young Swiss woman nicknamed Vreneli on the obverse and the Swiss shield on the reverse, a favorite of gold savers for over a century.
European
Roosevelt Dime
Issued since 1946 in honor of Franklin D. Roosevelt, this dime is struck in 90% silver through 1964 and copper-nickel clad afterward, and remains in circulation today.
United States
Napoleon 20 Franc Gold Coin
A historic French gold coin first struck under Napoleon Bonaparte in 1803, later issued under successive French governments and long used as a benchmark gold coin across Europe.
European
Austrian 20 Corona Gold
A compact gold coin of the Austro-Hungarian Empire depicting Emperor Franz Joseph I, widely available today as an accessible historic gold piece.
European
Brazilian 20000 Reis Gold
The highest-value gold coin of the Empire of Brazil, struck intermittently under Emperor Pedro II to support the country's monetary reserves and international trade.
Latin American
2008 Hawaii State Quarter
The final release of the 50 State Quarters Program, honoring Hawaii with an image of King Kamehameha I extending his hand over the Hawaiian islands.
United States
2004 Texas State Quarter
A 2004 entry in the 50 State Quarters Program depicting an outline of Texas with a lone star, honoring the state's independent history as the Lone Star State.
United States
French Napoleon 20 Francs Gold
France's standard 19th-century gold coin, first struck under Napoleon I and continued under later rulers and the Republic, giving rise to the enduring nickname "Napoleon" for any 20-franc gold coin.
European
Japanese Meiji Gold 20 Yen
The largest and highest-denomination gold coin of Meiji-era Japan, featuring an imperial dragon design, struck to underpin Japan's modern gold-backed currency system.
Asian
German Prussia 20 Mark Gold
The standard gold coin of Prussia within the newly unified German Empire, featuring successive Prussian kings and forming a key part of the empire's gold mark system.
European
Swiss 20 Francs Gold Vreneli
Switzerland's beloved gold 20-franc coin, nicknamed "Vreneli" after the young woman on its obverse, prized worldwide as an approachable and historically rich gold bullion and collector coin.
European
Connecticut Copper
State-authorized copper coinage struck for Connecticut in the mid-1780s, featuring a bust obverse and seated Liberty reverse across numerous die varieties.
United States
2000-P Sacagawea Cheerios Dollar
A famous modern rarity: early-production 2000-P Sacagawea dollars included in Cheerios cereal boxes as a promotion, some showing enhanced eagle tail feather detail not found on later coins.
Errors & Varieties
Walking Liberty Half Dollar
Widely admired U.S. half dollar designed by Adolph A. Weinman, depicting Liberty striding toward the sun and a bold eagle on the reverse; its obverse design was later revived for the Silver Eagle.
United States
2012 London Olympics 50p Series
The Royal Mint issued 29 different circulating 50 pence coins in 2011, each honoring a different sport of the London 2012 Olympic and Paralympic Games, sparking a nationwide coin-collecting craze in Britain.
Commemorative
2000 Sydney Olympics Coin Series
The Royal Australian Mint issued one of the largest circulating commemorative coin programs ever produced for a single Olympics, featuring numerous $5 designs alongside premium silver and gold proof coins for the Sydney 2000 Games.
Commemorative
German Empire 20 Mark Gold (Wilhelm II)
The standard gold coin of the German Empire under Kaiser Wilhelm II, struck at multiple state mints and widely collected for its imperial portrait and eagle reverse.
European
Royal Canadian Mint Colored Poppy Quarter (2004)
Canada's 2004 poppy quarter is widely credited as the world's first coin with a colored design produced for general circulation, honoring Canadian war remembrance with a red poppy at its center.
Commemorative