Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
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
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
Bactrian Silver Tetradrachm
Large silver coin of the Greco-Bactrian kings of Central Asia, celebrated for producing some of the finest realistic royal portraiture in all of ancient coinage.
Ancient
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
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
Portuguese Real
Portugal's centuries-old pre-decimal currency unit, used from the medieval era until the 1911 introduction of the escudo, also struck for Brazil and other colonies.
European
Spanish-Philippine 8 Reales Counterstamped Dollar
Spanish colonial 8 reales silver dollar officially countermarked for circulation in the Philippines, a hybrid of Spanish American and Philippine monetary history.
Asian
Hong Kong Silver Dollar (1866–1868, Victoria)
A short-lived silver dollar struck at Britain's ill-fated Hong Kong Mint, bearing a young portrait of Queen Victoria; the mint closed within two years.
Asian
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
Sovereign (Ottawa Mint, C Mintmark)
British gold sovereigns struck at the Ottawa branch of the Royal Mint between 1908 and 1919, marked with a small "C," making Canada part of the empire's global sovereign network.
Canadian
Naxos Silenus Tetradrachm (Sicily)
A silver tetradrachm from the Sicilian Greek colony of Naxos, celebrated for its masterful head of Dionysos and a vividly rendered seated Silenus on the reverse.
Ancient
Oregon Trail Memorial Half Dollar
A long-running commemorative honoring the Oregon Trail pioneers, featuring an acclaimed design of a Conestoga wagon and a Native American figure by Fraser and Fraser.
Commemorative
Hadrian Travel Series Denarius
A celebrated series of silver denarii issued late in Hadrian's reign, personifying the many provinces he famously toured throughout the Roman Empire.
Ancient
Aegina Land Tortoise Stater
A silver stater from the island of Aegina bearing a land tortoise, successor to the earlier sea-turtle design and among the earliest widely circulated coinages in the Greek world.
Ancient
Syracuse Arethusa Tetradrachm
A classic silver tetradrachm from ancient Syracuse depicting the nymph Arethusa surrounded by dolphins, one of the most admired coin types of the Greek world.
Ancient
Pilgrim Tercentenary Half Dollar
A commemorative half dollar marking the 300th anniversary of the Pilgrims' landing at Plymouth, featuring a bust of William Bradford and the ship Mayflower.
Commemorative
Hawaiian Sesquicentennial Half Dollar
A rare, low-mintage 1928 commemorative half dollar marking 150 years since Captain James Cook's arrival in Hawaii, considered a key rarity of the classic commemorative series.
Commemorative
Poseidonia (Paestum) Poseidon Stater
An early Magna Graecia silver stater from Poseidonia showing the sea god Poseidon striding forward with a raised trident, named for and emblematic of the city itself.
Ancient
Terina Nike Nomos
A silver nomos from the South Italian city of Terina, celebrated among collectors for its graceful depictions of Nike, the winged goddess of victory, on the reverse.
Ancient
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
1999 New Jersey State Quarter
One of the original five 1999 State Quarters, honoring New Jersey with a rendition of Washington Crossing the Delaware, launching the wildly popular 50 State Quarters Program.
United States
1999 Delaware State Quarter
The debut coin of the U.S. Mint's 50 State Quarters Program, honoring Delaware as the first state to ratify the Constitution, featuring Caesar Rodney's historic ride.
Commemorative
1913-S Barber Quarter
A famous low-mintage key date near the end of the Barber quarter series, prized by collectors despite its worn survivors due to its very small original production.
United States
1970 No S Proof Roosevelt Dime
A proof Roosevelt dime struck without its 'S' mintmark, one of a series of similar San Francisco die errors found across several years in the late 1960s and 1970s.
Errors & Varieties