Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Kellogg & Co. Gold Piece
Private gold coinage struck by the San Francisco firm Kellogg & Co. during the California Gold Rush, including the famous octagonal fifty-dollar 'slug' of 1855, filling a shortage of circulating coin.
United States
1933 Double Eagle
One of the rarest and most legally contested U.S. coins, struck but never officially released for circulation after the nation left the gold standard; a single example sold for over $18 million.
United States
Celtic Gold Stater
Iron Age gold coins struck by Celtic tribes across Gaul and Britain, evolving from close imitations of Macedonian staters into strikingly abstract, stylized designs.
Ancient
1827 Capped Bust Quarter
One of the most celebrated rarities in American numismatics, the 1827 quarter exists only as extremely rare proof-like Originals and later Restrikes rather than typical circulation coinage.
United States
Swiss 5 Francs Silver
The Swiss 5 Francs was Switzerland's largest circulating silver coin for over a century, featuring the standing figure of Helvetia, and remains a favorite among collectors of European silver crowns.
European
American Palladium Eagle
The United States Mint's palladium bullion coin, introduced in 2017 and based on Adolph Weinman's classic Winged Liberty and eagle designs.
Bullion
Gobrecht Dollar
A transitional silver dollar designed by Christian Gobrecht featuring a seated Liberty obverse and a flying eagle reverse, bridging older and newer designs in U.S. coinage.
United States
Dutch Guilder (Gulden)
The guilder was the standard currency of the Netherlands for more than three centuries, struck in silver and later copper-nickel before being replaced by the euro in 2002.
European
Tokelau Silver Series
A family of novelty-themed silver bullion coins issued in the name of Tokelau, a New Zealand territory, often featuring innovative designs like rotating or gyroscopic elements.
Africa & Oceania
Fiji Silver Taku
A Fijian bullion coin whose denomination, the Taku, references traditional Fijian whale-tooth currency, produced by the New Zealand Mint since 2012.
Africa & Oceania
Tunisian Franc (Beylik Era)
French-franc-aligned coinage struck in the name of the Tunisian Bey during the era of French protectorate influence, blending Arabic and French inscriptions.
Africa & Oceania
Indian Head Eagle ($10)
A striking early 20th-century gold eagle designed by Augustus Saint-Gaudens as part of President Theodore Roosevelt's push to beautify American coinage.
United States
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
Australian Kangaroo Gold Nugget
Modern Australian gold bullion coin from the Perth Mint, launched in 1986 with changing nugget designs before adopting an annually updated kangaroo reverse.
Bullion
Chinese Auto Dollar (Kweichow, 1928)
Famous Chinese provincial silver dollar depicting an automobile, struck in Kweichow province in 1928 and celebrated by collectors as one of the most distinctive Chinese coin designs.
Asian
Crown
Large British coin traditionally worth five shillings, historically struck in silver and famed for elaborate designs, now issued mainly as a cupro-nickel commemorative.
British
British Silver Lunar Series
The Royal Mint's own Chinese zodiac-themed silver bullion series, launched in 2014 as a rival to the long-established Perth Mint Lunar coins.
British
Canadian Colored Maple Leaf
A colorized variant of Canada's iconic Maple Leaf bullion coin, applying vivid printed designs over the standard maple leaf or themed reverse to create eye-catching collector editions.
Canadian
Florentine Florin
Introduced in 1252, the gold florin of Florence became medieval Europe's leading trade coin, its lily emblem and fixed gold standard copied by dozens of other mints.
European
Venetian Gold Ducat
First struck in 1284, the Venetian gold ducat became medieval Europe's most trusted trade coin, prized for centuries for its unwavering weight and purity.
European
Roman Republic Denarius
The workhorse silver coin of the Roman Republic, introduced during the Second Punic War and struck by a long line of moneyers with ever-changing, often political, designs.
Ancient
Lincoln Shield Cent
The current Lincoln cent reverse, introduced in 2010, depicts a Union shield replacing the earlier Lincoln Memorial design as the fourth reverse in the cent's history.
United States
Tibetan Silver Srang (Ganden Tangka type)
A native Tibetan silver coin issued by the Ganden Phodrang government in Lhasa, featuring the Tibetan snow lion and traditional Tibetan script rather than Chinese imperial designs.
Asian
Hungarian Ducat
A remarkably long-lived gold coin of the Kingdom of Hungary, showing St. Ladislaus and the Madonna and Child, prized for centuries as one of Europe's most trusted trade coins.
European