Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Solidus of Justinian I
Byzantine gold solidus of Emperor Justinian I (527-565 AD), showing his crowned imperial bust with a seated figure on the reverse.
Ancient Coins
Guangxu Yuanbao Dollar
A crown-sized silver dragon dollar of Qing China inscribed 光緒元寶 (Guangxu Yuanbao), with a coiled dragon reverse and a provincial mint inscription; this piece dated 1905.
Circulation
Bronze Coin of Corinth (Augustan)
A Roman colonial bronze struck at Corinth during the reign of Augustus, showing a laureate imperial portrait; the example here has a badly corroded reverse.
Ancient
Austrian 4-fold Ducat
A large Austrian gold 4 Ducat dated 1915, showing Emperor Franz Joseph I in uniform and the crowned double-headed imperial eagle.
Bullion/gold
German East Africa 1/4 Rupie
A small colonial silver coin of German East Africa, inscribed DEUTSCH OSTAFRIKA and 1/4 RUPIE within a wreath, paired with the imperial eagle.
World
Follis of Galerius
A large silvered bronze follis of the emperor Galerius (Augustus AD 305-311), struck across the Tetrarchic mints with a laureate portrait and a standing deity reverse.
Ancient
Spanish Colonial 2 Reales (Milled)
A small milled silver coin of the Spanish Empire, struck in colonial American mints; this example is dated 1776 and shows heraldic lions, castles and a crowned shield.
Colonial
Guangxu Yuanbao 50 Cents
A Qing-dynasty silver half-dollar bearing the legend Guangxu Yuanbao and a coiled dragon, struck by Chinese provincial mints during the Guangxu Emperor's reign.
Circulation
Half Centenionalis of Constans or Constantius II
A small mid-4th-century Roman bronze attributed to Constans or Constantius II, sons of Constantine the Great, worn but identifiable by its imperial portrait and era.
Ancient
Nummus of Constantine I
Small late Roman bronze nummus (follis) of Constantine I the Great (306-337 CE), identified by his right-facing imperial portrait on the obverse.
Ancient
12 Roubles (Nicholas I)
A rare Imperial Russian platinum 12 Roubles of Nicholas I, showing the crowned double-headed eagle and a Cyrillic '12 РУБЛЕЙ' value in Ural platinum.
Modern
Aureus of Faustina II
Roman imperial gold coin with the draped bust of Faustina II, daughter of Antoninus Pius and wife of Marcus Aurelius, struck around 147-150 AD.
Ancient Coins
Antoninianus
Roman imperial coin of the crisis era, marked by a radiate (spiked) crown on the emperor's head; struck in debased silver-and-copper billon, c. 250-270 AD.
Ancient Coins
German 20 Mark Gold
German Empire gold 20 mark of Prussia, with Kaiser Wilhelm I's bust and the imperial eagle; a small .900 gold coin from the pre-WWI Goldmark era.
Bullion/gold
Austria-Hungary 10 Kreuzer
A small low-grade silver 10 Kreuzer of Emperor Franz Joseph I, pairing his laureate portrait with a crowned double-headed imperial eagle and a 10 value shield.
Circulation
First Spouse Gold Coin (Alice Paul)
A 2012 half-ounce 24-karat gold coin from the U.S. Mint's First Spouse series honoring suffragist Alice Paul and the woman-suffrage movement.
Commemorative
Benjamin Franklin Founding Father Commemorative Silver Dollar
A 2006 U.S. commemorative silver dollar honoring Benjamin Franklin, showing him flying his kite in the electricity experiment, with a 'MIND YOUR BUSINESS' reverse.
Dollar
American Palladium Eagle
The U.S. Mint's one-ounce .9995 fine palladium bullion coin, launched in 2017 with classic Weinman Mercury dime and eagle designs.
Bullion
Norfolk Bicentennial Half Dollar
A 1936 U.S. silver half dollar honoring Norfolk, Virginia, with the city's Royal Mace on the reverse and dates 1636-1936; a low-mintage classic commemorative.
Classic Commemorative