Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Australian Penny (1930)
Regarded as the key date of Australian pre-decimal coinage, the 1930 penny is famous for an exceptionally small mintage during the Great Depression.
Africa & Oceania
Syracuse Dekadrachm (Kimon)
A magnificent silver dekadrachm from ancient Syracuse signed by the master engraver Kimon, prized as one of the finest achievements of Greek coin art.
Ancient
Niue Silver Owl (Athenian)
A modern silver bullion coin issued in the name of Niue, reviving the design of the ancient Athenian owl tetradrachm as a tribute to classical coinage.
Bullion
Mexican Gold Centenario (50 Pesos)
Mexico's iconic gold coin, first struck in 1921 to mark a century of independence, depicting the Angel of Independence and still produced today as bullion.
Bullion
1938-D Walking Liberty Half Dollar
A low-mintage Denver issue widely regarded as the key date of the later Walking Liberty half dollar run, second in scarcity only to the 1921 dates.
United States
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
Australian Silver Koala
A Perth Mint silver bullion coin featuring an annually changing depiction of the koala, launched in 2007 as a companion series to the long-running Silver Kookaburra.
Bullion
Vietnamese Gia Long Thong Bao (cash coin)
The founding cash coin of Vietnam's Nguyễn Dynasty, cast under Emperor Gia Long who reunified the country in 1802 and established Huế as the imperial capital.
Asian
Netherlands Lion Daalder (Leeuwendaalder)
A large silver trade coin of the Dutch provinces showing a knight and a rampant lion, widely circulated in colonial North America and the Ottoman world as the prototype 'lion dollar.'
European
Japanese Oban
A large, oval, hand-hammered gold plate coin of feudal Japan, used mainly as a gift, reward, or ceremonial item rather than everyday currency, among the largest gold coins ever issued.
Asian
Netherlands 5 Gulden Gold
A gold 5 gulden coin struck intermittently by the Kingdom of the Netherlands, first under King William I in the 1820s and later as a rare 1912 commemorative under Queen Wilhelmina.
European
Gupta Empire Gold Dinar
Richly detailed gold coins of India's classical Gupta Empire, depicting kings as archers, horsemen, or lyrists, and often paired with a goddess on the reverse.
Ancient
Saint-Gaudens Double Eagle
Widely regarded as one of the most beautiful U.S. coins ever produced, designed by sculptor Augustus Saint-Gaudens at the urging of President Theodore Roosevelt.
United States
1794 Flowing Hair Cent
An early United States large copper cent from the first years of the Mint, associated with the Flowing Hair Liberty portrait used on the nation's earliest coinage.
United States
Nerva Denarius
Silver denarius of the elderly senator Nerva, first of Rome's "Five Good Emperors," whose brief reign is best remembered for adopting Trajan as his successor.
Ancient
1891 Seated Liberty Quarter
The final year of the long-running Seated Liberty quarter design before it was replaced by the Barber quarter in 1892, popular as an affordable closing-date type coin.
United States
Persian Gold Daric
The standard gold coin of the Achaemenid Persian Empire, depicting the Persian Great King as a running or kneeling archer, used widely to pay soldiers and mercenaries.
Ancient
Chinese Knife Money (Ming Dao)
An ancient Chinese bronze currency cast in the shape of a knife, bearing a character often read as "Ming" on its blade, used mainly by the northern state of Yan before round coinage prevailed.
Asian
Armenian Silver Noah's Ark
A biblically themed silver bullion coin issued by the Central Bank of Armenia, referencing Mount Ararat's traditional association with Noah's Ark.
World
Netherlands East Indies VOC Duit
Copper coin struck by the Dutch East India Company (VOC) for circulation in its Asian trading territories, a common relic of 18th-century colonial commerce.
Asian
Constantius I Chlorus Follis
Reform-era bronze follis of Constantius I Chlorus, Caesar and later Augustus of the western Tetrarchy, remembered chiefly as the father of Constantine the Great.
Ancient
Byzantine Gold Solidus
The gold standard coin of the Byzantine Empire for over 700 years, prized in medieval trade as far away as India and Scandinavia under the nickname "bezant."
Ancient
1804 Draped Bust Dime
A scarce early dime featuring the Draped Bust obverse and Heraldic Eagle reverse, struck in very limited numbers and prized as a key date of the series.
United States
Austrian Silver Philharmonic
Austria's modern one-ounce silver bullion coin, launched in 2008 as a companion to the long-running gold Philharmonic, featuring the instruments of the Vienna Philharmonic Orchestra.
Bullion