Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
1999 Susan B. Anthony Dollar
A one-year revival of the Susan B. Anthony dollar, struck in 1999 to meet demand for dollar coins in vending and transit use before the Sacagawea dollar's launch the following year.
United States
British India Silver Rupee (Victoria Empress)
Silver rupee of British India struck under Queen Victoria as Empress of India, the workhorse coin of the Raj's monetary system from 1877 to 1901.
Asian
Presidential Dollar - Abraham Lincoln
A Presidential Dollar honoring Abraham Lincoln, released in 2010 during the bicentennial period of his birth, featuring his portrait and the series' distinctive incused edge lettering.
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
Native American Dollar (Sacagawea Reverse Series)
A continuation of the Sacagawea dollar with an annually changing reverse honoring Native American history and culture, while keeping Sacagawea's portrait on the obverse.
United States
Presidential Dollar - John Adams
The second coin in the U.S. Presidential Dollar series, honoring John Adams, also affected by a notable doubled and missing edge-lettering error alongside the Washington issue.
United States
Postumus Antoninianus
Radiate coin of Postumus, the general who broke away from Rome to found the separatist Gallic Empire covering Gaul, Britain, Germania, and Hispania during the Crisis of the Third Century.
Ancient
Kushan Gold Dinar
Gold coin of the Kushan Empire modeled on the Roman aureus standard, notable for depicting a rich blend of Greek, Iranian, Indian, and Buddhist deities on its reverse.
Ancient
German 3 Mark Silver
A large silver coin of Imperial Germany, issued by the various constituent states with distinct rulers' portraits and commemorative designs.
European
Austrian Gold Ducat
A traditional high-purity Austrian gold trade coin with centuries of history, still struck today by the Austrian Mint as an official restrike permanently dated 1915.
European
Ottoman Para
A small fractional Ottoman coin, historically 1/40 of a kurus, struck for centuries in varying metals as the empire's lowest everyday denomination.
World
Aureus of Augustus
The gold coin of Rome's first emperor, Augustus, who standardized the aureus at roughly 1/40 of a Roman pound and set the gold standard for the empire.
Ancient
German 5 Mark Silver (Kaiserreich)
The 5 Mark was the largest circulating silver coin of the German Empire, issued by numerous constituent states and free cities, each with its own portrait or design under a common imperial system.
European
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
Ottoman Kurus (Piastre)
The standard Ottoman monetary unit for centuries, struck in silver or base metal bearing the sultan's tughra, later becoming a subunit of the Ottoman lira after 1844.
World
Ottoman Gold 500 Kurus (Abdulhamid II)
A substantial gold coin struck under Sultan Abdulhamid II, equal to five Ottoman lira, bearing his tughra and used both for circulation and as a store of wealth.
World
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
Byzantine Follis
The large bronze workhorse coin of everyday Byzantine commerce, reformed by Emperor Anastasius I in 498 AD with a prominent Greek numeral denoting its value of 40 nummi.
Ancient
Hadrian Denarius
The silver coin of Emperor Hadrian, famous for its extensive 'travel series' honoring the provinces he visited during his unusually extensive tours of the empire.
Ancient
Nero Sestertius
A large bronze/brass coin of Nero widely admired for exceptional artistry, including famous reverse scenes of the Port of Ostia and the closed Temple of Janus.
Ancient
Marcus Aurelius Denarius
The silver coin of the philosopher-emperor Marcus Aurelius, struck during years of war and plague, reflecting a reign celebrated for its Stoic ideals amid crisis.
Ancient
Trajan Denarius
The silver coin of Emperor Trajan, whose reign marked the Roman Empire's greatest territorial extent, with coin types celebrating his Dacian conquests and vast building program.
Ancient
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