Coin Encyclopedia
Search and identify coins from around the world — with country, denomination, metal, mint, history, and how to tell them apart.
Australian Silver Koala
A Perth Mint silver bullion coin featuring an annually changing depiction of the koala, launched in 2007 as a companion series to the long-running Silver Kookaburra.
Bullion
Australian Silver Kookaburra
An annually redesigned Australian silver bullion coin issued since 1990, featuring a different depiction of the native kookaburra bird each year.
Bullion
Australian Platinum Koala
Australia's platinum bullion coin from the Perth Mint, first struck in 1988 with a koala design that changes nearly every year.
Bullion
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
Australian Silver Kangaroo
Perth Mint's annually redesigned silver bullion coin featuring a different kangaroo motif each year, popular alongside the Gold Kangaroo series.
Bullion
Australian Gold Kangaroo
Australia's flagship gold bullion coin, first struck as the Gold Nugget before adopting a yearly-changing kangaroo design in 1989.
Bullion
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
1861 Confederate Half Dollar
An extraordinarily rare Civil War-era coin struck briefly at the Confederate-controlled New Orleans mint, using a genuine CSA reverse die paired with an existing US half dollar obverse.
United States
1943 Copper Lincoln Cent
An extremely rare mint error where a handful of 1943 cents were struck on leftover bronze planchets instead of the wartime steel used that year, making it one of the most famous US coin errors.
Errors & Varieties
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
1875-CC Twenty-Cent Piece
A Carson City strike of the short-lived US twenty-cent piece, valued both for its unusual denomination and its Wild West mint origin.
United States
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
Australian Kangaroo Gold Nugget
Modern Australian gold bullion coin from the Perth Mint, launched in 1986 with changing nugget designs before adopting an annually updated kangaroo reverse.
Bullion
Cartwheel Penny (1797)
A massive, one-ounce copper penny struck in 1797 by Matthew Boulton's Soho Mint, nicknamed the Cartwheel Penny for its thick raised rim resembling a cart's wheel and axle.
British
2012 London Olympics 50p Series
The Royal Mint issued 29 different circulating 50 pence coins in 2011, each honoring a different sport of the London 2012 Olympic and Paralympic Games, sparking a nationwide coin-collecting craze in Britain.
Commemorative
Hong Kong Dollar (1866–1868 Silver Dollar)
A short-lived silver dollar struck at Britain's ill-fated Hong Kong Mint, bearing Queen Victoria's portrait and intended to compete with Mexican and Chinese silver in Asian trade.
Asian
Cartwheel Twopence (1797)
An enormous two-ounce copper twopence struck in 1797, the largest coin ever produced for circulation in Britain, made famous for its heavy raised cartwheel-style rim.
British
Australian Lunar Series Silver
Perth Mint's silver bullion series depicting the twelve animals of the Chinese zodiac in rotating annual designs, running since 1996 across three design series.
Bullion
Australian Lunar Series Gold
The gold counterpart to Perth Mint's Lunar bullion series, depicting the twelve Chinese zodiac animals across three evolving design generations since 1996.
Bullion
Chinese Kirin Province Dragon Dollar
A late Qing dynasty silver dollar from China's northeastern Kirin province, widely admired by collectors for the unusually artistic and finely detailed dragon design on several of its issues.
Asian
1864 Two-Cent Piece
The debut year of the two-cent piece, the first US coin to bear the motto In God We Trust, issued in Small Motto and Large Motto varieties.
United States
1875-S Twenty-Cent Piece
The most commonly encountered date in the short-lived US twenty-cent piece series, struck in large numbers at San Francisco in the coin's debut year.
United States
Tuvalu Marvel Silver Coins
Officially licensed Marvel superhero silver coins issued in the name of Tuvalu, produced by Australia's Perth Mint and featuring characters like Spider-Man, Iron Man, and the Avengers.
Commemorative
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