Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Half Groat
A small hammered silver coin worth half the value of the groat, or two pence, struck across three centuries of English coinage from the reign of Edward III through the Stuart era.
British
Rose Noble (Ryal)
A large English gold coin first struck under Edward IV in 1465, showing the king standing in a ship, and later revived in the Tudor era as a heavier, higher-value gold piece.
British
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
Ottoman Rashidi Kurus
A silver kurus variety struck to a distinct local standard within the Ottoman Arabian provinces, less standardized and less commonly catalogued than the empire's main Constantinople coinage.
World
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
Sun Yat-sen Junk Dollar
A Republic of China silver dollar depicting Sun Yat-sen and a traditional sailing junk, with the scarcer 1934 variety showing three birds overhead that is highly sought by collectors.
Asian
Hong Kong Dollar (1866–1868 Silver Dollar)
A short-lived silver dollar struck at Britain's ill-fated Hong Kong Mint, bearing Queen Victoria's portrait and intended to compete with Mexican and Chinese silver in Asian trade.
Asian
Japanese 1 Yen Silver 'Dragon' Trade Dollar
A Meiji-era Japanese silver yen featuring a coiled dragon, struck to standardize Japan's currency and, in a special trade dollar variant, to compete with Mexican and other silver dollars across East Asia.
Asian
Louisiana Purchase Gold Dollar Commemorative
A 1903 commemorative gold dollar issued for the Louisiana Purchase Exposition in St. Louis, struck in two varieties featuring the portraits of Thomas Jefferson and William McKinley.
Commemorative
Maundy Fourpence
The largest of the four Royal Maundy coins, a small silver fourpence descended in value from the medieval groat, struck annually for the monarch's ceremonial Maundy Thursday alms distribution.
British
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
Spanish 8 Reales Portrait Dollar
The globally trusted "Spanish dollar" bearing a king's portrait, minted across Spain's vast colonial empire and so widely circulated it directly inspired the U.S. dollar sign and denomination.
European
Philippine 50 Centavos (Commonwealth, 1936)
A special 1936 silver 50-centavo coin marking the establishment of the Commonwealth of the Philippines, issued in two paired-portrait varieties honoring Quezon alongside Murphy or Roosevelt.
Asian
Persian Gold Toman (Qajar)
The principal gold coin of Qajar Persia, valued at ten silver kran, struck under a succession of shahs from the late 18th century until the dynasty's end in 1925.
Asian
Saxon Speciestaler
Full-weight silver taler issued by the Electors and later Kings of Saxony, distinguished from lesser-value "current" talers used for everyday commerce.
European
1969-S Doubled Die Obverse Lincoln Cent
A famous and dramatic doubled die obverse Lincoln cent from the San Francisco Mint, showing strong, easily visible doubling and ranking among the most valuable Lincoln cent doubled die varieties.
Errors & Varieties
Japanese Nishu-kin (gold coin)
Small rectangular gold coin from Tokugawa Japan valued at two shu, or one-eighth of a ryo, part of a fractional gold denomination system unique to Edo-period currency.
Asian
Chinese Pei Yang (Peiyang) Arsenal Dragon Dollar
Late Qing dynasty silver dollar struck at the Pei Yang Arsenal in Tientsin, prized by collectors for its dragon design and the rarity of certain dated varieties.
Asian
Gold Half Sovereign
Smaller companion to the gold sovereign, struck since 1817 at half the weight and value, sharing the same monarch portraits and often the same St George reverse design.
British
Ceylon (Sri Lanka) EIC Rixdollar
A colonial currency unit continued by the British East India Company administration in Ceylon, inherited from earlier Dutch VOC rule and featuring an elephant design.
Asian
Ottoman Gold Sultani
The principal gold trade coin of the early Ottoman Empire, struck to match the weight and fineness of the Venetian ducat so it could compete in Mediterranean commerce.
World
Touchstone Sovereign (Fine Sovereign)
A large, high-value English gold coin struck in especially pure 'fine gold,' valued at thirty shillings and distinguished from the more common crown-gold Sovereign of the same era.
British
Isabella Quarter
The only U.S. commemorative quarter dollar, struck for the 1893 World's Columbian Exposition and featuring Queen Isabella I of Spain, sponsor of Columbus's voyage.
Commemorative
1975 No S Proof Roosevelt Dime
One of the rarest and most valuable modern US coin errors: a 1975 proof dime struck without its San Francisco 'S' mintmark, with only a handful of examples known.
Errors & Varieties