Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
American Platinum Eagle
The United States Mint's official platinum bullion coin, issued since 1997 in four sizes, featuring the Statue of Liberty and a changing eagle reverse.
Bullion
1974 Aluminum Cent
An extremely rare experimental pattern struck in aluminum as a potential replacement for the copper cent amid rising metal costs, almost none of which were legally released to the public.
Errors & Varieties
Maria Theresa Thaler
An Austrian silver trade coin dated 1780 that has been restruck continuously for over two centuries, remaining a trusted currency across parts of Africa and the Middle East long after its original issue.
European
California Diamond Jubilee Half Dollar
A 1925 commemorative half dollar marking California's 75th anniversary of statehood, featuring a kneeling gold prospector obverse and a walking grizzly bear reverse.
Commemorative
1877 Indian Head Cent
The premier key date of the Indian Head cent series, struck in unusually low numbers during a mid-1870s economic downturn.
United States
Austrian Levantine Thaler (Maria Theresa Thaler)
A famous silver trade coin bearing the portrait of Empress Maria Theresa, perpetually dated 1780 and restruck for centuries as a trusted trade currency across the Middle East, Arabia, and East Africa.
European
1804 Draped Bust Silver Dollar
Extraordinarily rare U.S. dollar known as "The King of American Coins," actually struck decades after its 1804 date for diplomatic gift sets and later collectors, with only 15 known examples.
United States
Una and the Lion Five Pound
A legendary 1839 gold proof depicting young Queen Victoria as Una leading a lion, widely considered one of the most beautiful coins ever struck and a benchmark of Victorian coin art.
British
Faustina the Elder Denarius
Posthumous silver denarius honoring Faustina the Elder, wife of Antoninus Pius, struck for two decades after her death and deification in 140/141 AD.
Ancient
1916 Standing Liberty Quarter
The extremely low-mintage first-year issue of the Standing Liberty quarter, one of the most famous key dates in all of United States coinage.
United States
1794 Flowing Hair Half Dime
One of the very first silver coins struck for circulation by the United States Mint, bearing the Flowing Hair Liberty design and a small eagle reverse.
United States
1893-S Morgan Dollar
The undisputed key date of the Morgan dollar series, struck at San Francisco with the lowest mintage of any regular-issue Morgan, roughly 100,000 coins.
United States
Constantine the Great Follis
A bronze coin of Constantine the Great, the emperor who legalized Christianity and founded Constantinople, struck at numerous mints across a transforming empire.
Ancient
Seated Liberty Dollar
A mid-19th century silver dollar depicting Liberty seated on a rock, the standard large silver dollar of the United States before the Trade dollar and Morgan dollar.
United States
Presidential Dollar - Thomas Jefferson
The third coin in the Presidential Dollar series, honoring Thomas Jefferson, sharing the same edge-lettering format and Statue of Liberty reverse as the earliest issues in the program.
United States
1950-D Jefferson Nickel
The lowest-mintage business-strike Jefferson Nickel of the entire series, widely hoarded in rolls even as it was released, earning it the nickname the 'King of Jefferson Nickels.'
United States
Philip the Arab Antoninianus
Radiate coin of Philip the Arab, notable for celebrating Rome's 1,000th anniversary in 248 AD with a memorable series of animal-themed 'Saecular Games' reverse types.
Ancient
Flowing Hair Half Dime
One of the earliest United States silver coins, the Flowing Hair Half Dime was struck only in 1794 and 1795 and is a landmark rarity for early American coinage collectors.
United States
Faustina the Younger Denarius
Silver denarius of Faustina the Younger, daughter of Antoninus Pius and wife of Marcus Aurelius, whose coinage emphasizes fertility and family themes.
Ancient
Spanish Gold Doubloon
A popular name for large Spanish colonial gold coins, typically two, four, or eight escudos, forever associated with pirate treasure and sunken Spanish galleons.
World
1876-CC Twenty-Cent Piece
One of the great rarities of United States coinage: a Carson City twenty-cent piece of which nearly the entire mintage was melted, leaving only a small number of survivors known.
United States
German Saxony Ducat
A high-purity gold trade coin struck for centuries by the rulers of Saxony, one of the most important German states before national unification.
European
Alexander the Great Tetradrachm
The widely circulated silver coin of Alexander the Great, showing Herakles wearing a lion skin on the obverse and an enthroned Zeus on the reverse, struck across his empire and for generations after his death.
Ancient
Flowing Hair Chain Cent
The first cent struck for circulation by the United States Mint, showing Liberty with flowing hair and a controversial 15-link chain on the reverse.
United States