Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Aureus of Augustus
The gold coin of Rome's first emperor, Augustus, who standardized the aureus at roughly 1/40 of a Roman pound and set the gold standard for the empire.
Ancient
1937 Doubled Die Obverse Buffalo Nickel
A doubled die variety of the 1937 Buffalo nickel showing visible doubling in the obverse date and lettering, collected alongside other notable varieties from the final years of the Buffalo nickel series.
Errors & Varieties
1955 Poor Man's Doubled Die Lincoln Cent
A more common, lower-value doubled die variety on the 1955 Lincoln cent, nicknamed the 'poor man's' version because it offers a similar doubled-image look to the famous 1955 Doubled Die Obverse at a fraction of the price.
Errors & Varieties
1958 British Columbia Totem Pole Dollar
A commemorative Canadian silver dollar marking the centennial of the founding of the Colony of British Columbia in 1858, its reverse featuring a totem pole design.
Canadian
1873-CC Seated Liberty Quarter (No Arrows)
One of the great rarities of the Seated Liberty quarter series, this tiny Carson City issue predates the mid-1873 arrows-at-date modification and survives in only a handful of known examples.
United States
1964 Charlottetown-Quebec Silver Dollar
A commemorative Canadian silver dollar marking the centennial of the 1864 Charlottetown and Quebec Conferences that laid the groundwork for Canadian Confederation.
Canadian
1799/8 Draped Bust Silver Dollar Overdate
A prized die variety of the Draped Bust silver dollar where an 1799 obverse die was punched over a leftover 1798 date, leaving overlapping digits visible under magnification.
Errors & Varieties
1950-D/S Washington Quarter Overmintmark
A famous mid-century mintmark error where a Denver quarter die was first punched with an S mintmark and then re-punched with a D, leaving traces of both letters visible.
Errors & Varieties
1976 Montreal Olympics Silver Coin Series
A landmark seven-series program of sterling silver $5 and $10 coins issued by Canada to help finance and celebrate the 1976 Montreal Summer Olympics.
Commemorative
1950-S/D Washington Quarter Overmintmark
A 1950 San Francisco Washington quarter struck from a die where an S mintmark was punched over a leftover D, creating one of the best-known overmintmark errors in the series.
Errors & Varieties
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
1943-P/D Jefferson Nickel Doubled Mintmark
A wartime Jefferson nickel variety showing evidence of a doubled or repunched mint mark, with traces suggesting a D was punched before being corrected to a P, or vice versa, above Monticello on the reverse.
Errors & Varieties
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
1853 Seated Liberty Quarter (Arrows and Rays)
A popular one-year Seated Liberty type marked by arrows at the date and rays around the eagle, signaling a reduction in the coin's silver weight mandated by the Coinage Act of 1853.
United States
1939 Royal Visit Silver Dollar (Parliament)
A commemorative Canadian silver dollar marking the 1939 royal tour of King George VI and Queen Elizabeth, with the Parliament Buildings depicted on the reverse.
Canadian
1934 Washington Quarter Doubled Die Obverse
An early doubled die variety from the second year of the Washington quarter series, showing doubling on the obverse and collected as part of specialized variety sets.
Errors & Varieties
1937 Washington Quarter Doubled Die Obverse
A well-known doubled die variety of the early Washington quarter series, showing visible doubling in the obverse lettering and date from a misaligned die hubbing.
Errors & Varieties
1943 Washington Quarter Doubled Die Obverse
A wartime-era doubled die variety of the Washington quarter showing clear doubling on obverse design elements, popular among collectors of Mint error and variety coins.
Errors & Varieties
1970-S Washington Quarter Proof on 1941 Canadian Quarter
One of the most famous US mint errors: a 1970-S proof Washington quarter accidentally struck over a leftover silver 1941 Canadian quarter planchet at the San Francisco Mint.
Errors & Varieties
1946-S/D Jefferson Nickel Repunched Mintmark
A hand-punched mintmark variety on the 1946 Jefferson nickel showing remnants of a D beneath the final S, created when a die intended for one mint was repunched with another mintmark.
Errors & Varieties
Kuwaiti Fils
Kuwait's everyday subsidiary coinage, introduced after independence in 1961 as 1/1000 of the Kuwaiti dinar, featuring the Emir's name and national emblems across several denominations.
Asian
1984 Los Angeles Olympics Commemorative Dollar
The second year of a two-year US commemorative coin program, this 1984-dated silver dollar helped fund the Los Angeles Olympic Games and featured Olympic-themed artwork struck at three US mints.
Commemorative
1980 Moscow Olympics Silver Rouble
The Soviet Union struck an extensive multi-denomination coin program from 1977 to 1980 celebrating the Moscow Summer Olympics, including widely collected silver 1 rouble coins.
Commemorative
Cuba 4 Pesos Gold Jose Marti
A small gold denomination from Cuba's early republican-era gold coinage, part of a 1915–1916 series (1 through 20 pesos) struck to circulate on par with US gold currency.
Latin American