Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.

Mexican Balanza Silver Peso (1957-1967)
The last circulating silver peso of Mexico, struck in a much-reduced silver alloy through the 1960s before Mexico moved fully to base-metal coinage.
Latin American
Swiss Franc (Helvetia Seated)
Switzerland's classic 19th-century silver coinage depicting a seated figure of Helvetia, the female personification of the Swiss nation.
European
1916 Standing Liberty Quarter
The extremely low-mintage first-year issue of the Standing Liberty quarter, one of the most famous key dates in all of United States coinage.
United States
1856 Flying Eagle Cent
An extremely rare pattern-like small cent struck to convince Congress to approve a new, smaller cent design, and one of the most desired key dates in U.S. coinage.
United States
Uruguay Peso Silver 'Artigas'
A silver Uruguayan peso honoring national founding hero Jose Gervasio Artigas, struck in the early twentieth century as part of Uruguay's circulating coinage.
Latin American
1878 Shield Nickel (Proof Only)
Another proof-only rarity in the Shield Nickel series, struck exclusively for collectors with no business-strike coinage issued for circulation that year.
United States
1794 Flowing Hair Cent
An early United States large copper cent from the first years of the Mint, associated with the Flowing Hair Liberty portrait used on the nation's earliest coinage.
United States
1842-O Small Date Seated Liberty Quarter
A famous condition and date rarity of the Seated Liberty series, struck at New Orleans from leftover small-date dies originally prepared for Philadelphia proof coinage.
United States
Athens New Style Owl Tetradrachm
Later Athenian silver tetradrachm on a broad, thin flan showing the owl standing on an amphora within an olive wreath, distinct from the earlier classical owl coinage.
Ancient
Siamese Rama V Silver Baht
Western-style silver baht introduced under King Chulalongkorn (Rama V) of Siam, replacing centuries-old bullet money with modern flat coinage.
Asian
Kroisos (Croeseid) Gold Stater of Lydia
A pure gold stater struck under King Croesus of Lydia, part of history's first coinage issued in separate fixed-purity gold and silver denominations.
Ancient
1918/7-S Standing Liberty Quarter Overdate
One of the most famous overdate varieties in U.S. coinage, where a leftover 1917 die was re-punched with an 1918 date, leaving remnants of the 7 visible beneath the 8.
Errors & Varieties
Lydian Croeseid (Croesus Stater)
One of history's earliest bimetallic coinages, struck under the legendary King Croesus of Lydia, featuring the confronting foreparts of a lion and a bull.
Ancient
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
Spanish Colonial Gold Escudo (Doubloon)
The gold coinage of the Spanish American colonies, popularly nicknamed the doubloon, struck in denominations up to 8 escudos and famous from pirate and shipwreck lore.
Latin American
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
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
Venezuela 5 Bolivares 'Fuerte' Silver
A high-purity Venezuelan silver crown struck in 1911–1912, nicknamed the 'Fuerte' (strong) issue for restoring .900 fineness after decades of debased coinage.
Latin American
German Bremen Thaler
A silver thaler issued by the Free Hanseatic City of Bremen before German unification, featuring the city's heraldic key, part of the patchwork of pre-1871 German state and city coinages.
European
1955 Doubled Die Lincoln Cent
A famous doubled die error showing strong, plainly visible doubling on the date and lettering of the obverse, among the most recognizable die varieties in U.S. coinage.
Errors & Varieties
Maximian Follis
Large bronze follis of Maximian, co-Augustus with Diocletian who ruled the western half of the empire as part of the Tetrarchy and shared the same reformed coinage design.
Ancient
1796 Half Cent
One of the great rarities of American copper coinage, the 1796 half cent was struck in the Liberty Cap design in a very limited quantity, with 'With Pole' and rarer 'No Pole' varieties known.
United States
1921 Mercury Dime
A key date of the Mercury dime series, struck in unusually low numbers amid a post-World War I economic slowdown that reduced coinage demand nationwide.
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