Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Eisenhower Dollar
A large copper-nickel clad dollar (1971-1978) honoring President Dwight D. Eisenhower and commemorating the Apollo 11 moon landing on its reverse.
United States
Spanish Colonial 8 Reales Ferdinand VII
A large silver 8 reales coin struck across Spain's American colonies bearing the portrait of King Ferdinand VII, widely circulated internationally and historically linked to the origin of the US dollar sign.
World
Netherlands Rijksdaalder
A historic large silver crown-sized coin of the Low Countries, the rijksdaalder became a trusted trade coin across Europe for centuries and lent its name to the modern Dutch 2½-guilder piece.
European
Type 3 Indian Princess Gold Dollar
The final and longest-running design of the U.S. gold dollar, featuring a larger, better-struck Native American princess portrait than its short-lived Type 2 predecessor.
United States
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
Bolivia 8 Reales (Potosi Mint)
A major Spanish colonial and early Bolivian silver dollar struck at the legendary Potosí mint, fed by the immense silver deposits of the Cerro Rico mountain.
Latin American
1878-CC Trade Dollar
A scarce Carson City-struck Trade Dollar from the series made for Asian commerce, prized for its low surviving population and famous CC mintmark.
United States
Presidential Dollar Series
A circulating dollar coin series honoring US presidents in order of service, featuring edge-lettered mottos and a shared Statue of Liberty reverse across every release.
United States
1900-O/CC Morgan Dollar
A well-known Morgan dollar overmintmark variety showing an O mintmark punched over a CC, created when a leftover Carson City die was repurposed and repunched for use at New Orleans.
Errors & Varieties
Sacagawea Dollar
A golden-colored, manganese-brass dollar coin (2000-present) depicting Sacagawea carrying her infant son, replacing the Susan B. Anthony dollar.
United States
1987 Loon Dollar (Aureate)
Canada's first modern circulating dollar coin, introduced in 1987 to replace the paper dollar bill and nicknamed "the Loonie" after the common loon depicted on its reverse.
Canadian
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
1895 Morgan Dollar (King of Morgans)
A legendary Morgan Dollar key date struck only in proof format at Philadelphia, nicknamed the 'King of Morgans' for its extreme rarity within the series.
United States
Type 2 Indian Princess Gold Dollar
A short-lived, notoriously weakly struck redesign of the U.S. gold dollar, prized today for its brief production window and the striking difficulties that led to its quick replacement.
United States
Spanish Colonial Cob 8 Reales (Macuquina)
A crudely hand-struck Spanish colonial silver coin, cut from irregular silver bars and stamped with a cross and shield, famed worldwide as the original 'piece of eight'.
Latin American
1885 Trade Dollar
One of the rarest official United States coins, a proof-only issue struck years after the Trade dollar series had officially ended, with only a handful of examples known.
United States
Ryal
A large Scottish silver coin issued under Mary, Queen of Scots and Henry Stewart, Lord Darnley, nicknamed the 'sword dollar' for the crowned sword on its reverse.
British
1972 Eisenhower Dollar (Type 2)
A scarce reverse variety of the 1972 Eisenhower dollar, distinguished by a more detailed, higher-relief rendering of the Earth behind the moon-landing eagle, and prized by variety collectors.
Errors & Varieties
McKinley Memorial Gold Dollar
A small commemorative gold dollar honoring assassinated President William McKinley, sold to raise funds for a memorial building in his Ohio birthplace.
Commemorative
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
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
Panama-Pacific Gold Dollar Commemorative
A 1915 gold dollar honoring the workers who built the Panama Canal, featuring a canal laborer's head on the obverse and two dolphins encircling the denomination on the reverse.
Commemorative
San Diego Pacific Exposition Half Dollar
A 1935-1936 U.S. commemorative half dollar sold at the California Pacific International Exposition in San Diego's Balboa Park.
Commemorative
Ethiopian Birr (Menelik II)
Silver birr introduced by Emperor Menelik II of Ethiopia, modeled on the weight and fineness of the Maria Theresa thaler, featuring his crowned bust and the Lion of Judah.
Africa & Oceania