Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Kennedy Half Dollar
A half dollar issued starting in 1964 to honor assassinated President John F. Kennedy, quickly becoming a widely saved and collected commemorative-style circulating coin.
United States
Liberty Head Double Eagle
A large gold twenty-dollar coin featuring Liberty's coronet-crowned head, struck for decades amid the California Gold Rush and westward mint expansion.
United States
Nova Constellatio Copper
Distinctive early American copper coin featuring a radiant eye within a circle of stars, associated with Gouverneur Morris's proposed decimal coinage plans of the early 1780s.
United States
Immune Columbia Copper
An extremely rare Confederation-era copper carrying the Latin legend 'IMMUNIS COLUMBIA,' known for numerous unusual die combinations and mules with other early American and British designs.
United States
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
Vermont Copper
Copper coinage struck under authority of the independent Vermont Republic in the 1780s, featuring an early landscape design and later a Britannia-style type.
United States
Connecticut Copper
State-authorized copper coinage struck for Connecticut in the mid-1780s, featuring a bust obverse and seated Liberty reverse across numerous die varieties.
United States
Philippine 20 Centavos (US-Philippines)
A small silver coin from the US administration of the Philippines, showing Liberty striking an anvil before Mount Mayon on the obverse and a heraldic eagle on the reverse.
Asian
Continental Dollar
A large 1776-dated piece bearing a sundial, 'MIND YOUR BUSINESS,' and a thirteen-link chain, long debated as either an intended Continental Congress dollar or a contemporary satirical piece.
United States
Massachusetts Cent (1787-1788)
State-issued copper coinage struck by the Commonwealth of Massachusetts in 1787 and 1788, notable as the first official U.S. coinage to use the denomination 'cent'.
United States
Theodosius I Solidus
A gold solidus of Theodosius I, the last emperor to rule a united Roman Empire and the ruler who made Nicene Christianity the state religion.
Ancient