Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
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-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
1907 High Relief Double Eagle
Sculptor Augustus Saint-Gaudens' original, dramatically high-relief double eagle design, struck in limited numbers in 1907 before being flattened for mass production; widely called America's most beautiful coin.
United States
2004 Wisconsin State Quarter Extra Leaf
A famous modern variety of the 2004 Wisconsin state quarter showing an unexplained extra leaf on the corn cob, found in both 'low leaf' and 'high leaf' forms.
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
2005 Kansas State Quarter In God We Rust
A popularly nicknamed error on the 2005 Kansas state quarter in which a filled or damaged die caused the T in TRUST to appear missing, making the motto read 'IN GOD WE RUST.'
Errors & Varieties
2004-D Wisconsin Extra Leaf High Quarter
The 'high leaf' variant of the famous Wisconsin quarter extra-leaf variety, showing the anomalous extra corn leaf pointing upward and outward rather than low near the cheese wheel.
Errors & Varieties
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
2004-D Wisconsin State Quarter Extra Leaf
A famous 50 State Quarters error showing an extra corn leaf on the Wisconsin quarter's reverse, found in two forms known as Extra Leaf High and Extra Leaf Low.
Errors & Varieties
2000-P Sacagawea/Washington Quarter Mule
An extraordinarily rare mint error pairing the golden Sacagawea dollar obverse with a Washington quarter reverse die, one of the most famous modern mule errors in U.S. coinage.
Errors & Varieties
2019 Lowell America the Beautiful Quarter
A 2019 America the Beautiful Quarter honoring Lowell National Historical Park in Massachusetts, depicting a textile mill worker representing the American Industrial Revolution.
United States
2010 Hot Springs America the Beautiful Quarter
The first coin in the America the Beautiful Quarters series, honoring Hot Springs National Park in Arkansas with an image of its historic bathhouse row.
United States
2010 Yellowstone America the Beautiful Quarter
The second release in the America the Beautiful Quarters series, depicting the iconic Old Faithful geyser erupting in Yellowstone National Park, Wyoming.
United States
2011 Gettysburg America the Beautiful Quarter
An America the Beautiful Quarters release honoring Gettysburg National Military Park in Pennsylvania, site of the pivotal 1863 Civil War battle.
United States
2021 Tuskegee Airmen America the Beautiful Quarter
A 2021 America the Beautiful Quarter honoring the Tuskegee Airmen, the pioneering African American military pilots of World War II, at their Alabama training site.
United States
2005 Minnesota State Quarter Extra Tree (Doubled Die)
A doubled-die variety of the 2005 Minnesota state quarter that produces the illusion of an extra tree trunk among the treeline in the design, popular with modern variety collectors.
Errors & Varieties
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
Nova Constellatio Copper
Distinctive early American copper coin featuring a radiant eye within a circle of stars, associated with Gouverneur Morris's proposed decimal coinage plans of the early 1780s.
United States
Portuguese Escudo
Portugal's national currency unit from the 1911 decimal reform, following the fall of the monarchy, until the Euro replaced it in the early 2000s.
European
Belgian Franc
Belgium's national currency from independence in 1830 through the Latin Monetary Union era and into the Euro age, minted in both French and Dutch legends.
European
Vermont Copper
Copper coinage struck under authority of the independent Vermont Republic in the 1780s, featuring an early landscape design and later a Britannia-style type.
United States
Twenty Pence
A seven-sided UK coin introduced in 1982 to fill a gap between the ten pence and fifty pence denominations.
British
Jefferson Nickel
Struck since 1938, the Jefferson Nickel pairs a portrait of Thomas Jefferson with his home, Monticello, and briefly switched to a silver alloy during World War II.
United States