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The United States Mint has minted over 20 different kinds of coins, of many different sizes. Often, it is difficult for people to get a grasp of what much of the historical coinage looked like, at least in relation to modern circulating coins. This chart shows all of the coin types, and their sizes, grouped by coins of similar size and by general composition. [1]
Seven distinct types of coin composition have been used over the past 200 years: three base coin alloys, two silver alloys, gold, and in recent years, platinum and palladium. The base metal coins were generally alloys of copper (for 2 cent coins and lower), and copper/nickel (for 3 and 5 cent coins). Copper/nickel composition is also used for all modern "silver" coins. [2]
Steel Alloy | Copper | Copper Alloy | Silver Alloy | Silver | Gold | Platinum | Palladium | |||
---|---|---|---|---|---|---|---|---|---|---|
Three Cent 14 mm 0.8 g 0.750 fine 1851–1853 14 mm 0.75 g 0.900 fine 1854–1873 | ||||||||||
Half Dime 15.5 mm 1.24 g 1794–1873 | Dollar 15 mm 1.67 gr 1849–1889 | $5 American Gold Eagle 16.5 mm 3.11 g 1986–present | $10 American Platinum Eagle 16.5 mm 3.11 g 1997–present | |||||||
Three Cent 17.9 mm 1.94 g 1865-1889 | Dime (Clad) 17.91 mm 2.268 g 1965–present | Dime 17.9 mm 2.5 g 1796–1964 | $2.50 Gold Quarter Eagle 18 mm 4.2 g 1796–1929 | |||||||
Small Cent 19.05 mm 2.5 g 1943 | Small Cent 19.05 mm 3.11 g 1864-1982 | Small Cent 19.05 mm 4.67 g 1856-1864 2.5 g 1982–present | Three Dollar 20.5 mm 5.01 g 1853–1876 | |||||||
Nickel 21.21 mm 5 g 1866–present | Nickel 21.21 mm 5 g 1942–1945 | Twenty Cent 22 mm 5 g 1875–1878 | $5 Half Eagle 21.6 mm 8.36 g 1795–1929 | $10 American Gold Eagle 22 mm 7.78 g 1986–present | $25 American Platinum Eagle 22 mm 7.78 g 1997–present | |||||
Half Cent 23.5 mm 6.74 g 1795–1857 | Two Cent 23 mm 6.22 g 1864-1873 | Quarter (Clad) 24.26 mm 5.67 g 1965–present | Quarter (40% Ag) 24.3 mm 5.75 g 1976(S) | Quarter 24.3 mm 6.25 g 1796–1964 | ||||||
Dollar 26.5 mm 8.1 g 1979–Present [3] | $10 Eagle 27 mm 17.5 g 1795–1933 | $25 American Gold Eagle 27 mm 17.5 g 1986–present | $50 American Platinum Eagle 27 mm 15.6 g 1997–present | |||||||
Large Cent 29 mm 10.89 g 1793–1857 | Half Dollar (Clad) 30.61 mm 11.34 g 1971–present | Half Dollar (40% Ag) 30.6 mm 11.5 g 1965–1970, 1976(S) | Half Dollar 30.6 mm 12.5 g 1796–1964 | |||||||
$50 American Gold Eagle 32.7 mm 31.1 g 1986–present | $100 American Platinum Eagle 32.7 mm 31.1 g 1997–present | |||||||||
$20 Double Eagle 34 mm 35 g 1849–1933 | $25 American Palladium Eagle 34.036 mm 31.120 g 2017–present | |||||||||
Dollar (Clad) 38.1 mm 22.68 g 1971–1978 | Dollar (40% Ag) 38.1 mm 24.59 g 1971(S)-1976(S) | Dollar 38.1 mm 26.73 g 1794–1964 | ||||||||
$1 American Silver Eagle 40.6 mm 31.1 g 1986–present |
Steel Alloy | Copper | Copper Alloy | Silver Alloy | Silver | Gold | Platinum | Palladium | |||
---|---|---|---|---|---|---|---|---|---|---|
Notes on the tables:
The largest coin ever minted by the US Mint was the 2019 Apollo 50th anniversary 5ounce silver dollar, weighing 155.517 grams, and 76.2 mm in diameter. [5]
A coin is a small, flat, round piece of metal or plastic used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in large quantities at a mint in order to facilitate trade. They are most often issued by a government. Coins often have images, numerals, or text on them. Obverse and its opposite, reverse, refer to the two flat faces of coins and medals. In this usage, obverse means the front face of the object and reverse means the back face. The obverse of a coin is commonly called heads, because it often depicts the head of a prominent person, and the reverse tails.
Coins of the United States dollar were first minted in 1792. New coins have been produced annually and they make up a valuable aspect of the United States currency system. Today, circulating coins exist in denominations of 1¢, 5¢, 10¢, 25¢, 50¢, and $1.00. Also minted are bullion and commemorative coins. All of these are produced by the United States Mint. The coins are then sold to Federal Reserve Banks which in turn are responsible for putting coins into circulation and withdrawing them as demanded by the country's economy.
A nickel is a five-cent coin struck by the United States Mint. Composed of cupronickel, the piece has been issued since 1866. Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm).
The dime, in United States usage, is a ten-cent coin, one tenth of a United States dollar, labeled formally as "one dime". The denomination was first authorized by the Coinage Act of 1792.
The two-cent piece was produced by the Mint of the United States for circulation from 1864 to 1872 and for collectors in 1873. Designed by James B. Longacre, there were decreasing mintages each year, as other minor coins such as the nickel proved more popular. It was abolished by the Mint Act of 1873.
The eagle was a United States $10 gold coin issued by the United States Mint from 1792 to 1933.
The Coinage Act of 1792, passed by the United States Congress on April 2, 1792, created the United States dollar as the country's standard unit of money, established the United States Mint, and regulated the coinage of the United States. This act established the silver dollar as the unit of money in the United States, declared it to be lawful tender, and created a decimal system for U.S. currency.
The half dime, or half disme, was a silver coin, valued at five cents, formerly minted in the United States.
The Canadian five-cent coin, commonly called a nickel, is a coin worth five cents or one-twentieth of a Canadian dollar. It was patterned on the corresponding coin in the neighbouring United States. It became the smallest-valued coin in the currency upon the discontinuation of the penny in 2013. Due to inflation, the purchasing power of the nickel continues to drop and currently the coin represents less than 0.5% of the country's lowest minimum hourly wage.
The Indian Head cent, also known as an Indian Head penny, was a one-cent coin ($0.01) produced by the United States Bureau of the Mint from 1859 to 1909. It was designed by James Barton Longacre, the Chief Engraver at the Philadelphia Mint.
This glossary of numismatics is a list of definitions of terms and concepts relevant to numismatics and coin collecting, as well as sub-fields and related disciplines, with concise explanations for the beginner or professional.
The Flying Eagle cent is a one-cent piece struck by the Mint of the United States as a pattern coin in 1856 and for circulation in 1857 and 1858. The coin was designed by Mint Chief Engraver James B. Longacre, with the eagle in flight based on the work of Longacre's predecessor, Christian Gobrecht.
The Shield nickel was the first United States five-cent piece to be made out of copper-nickel, the same alloy of which American nickels are struck today. Designed by James B. Longacre, the coin was issued from 1866 until 1883, when it was replaced by the Liberty Head nickel. The coin takes its name from the motif on its obverse, and was the first five-cent coin referred to as a "nickel"—silver pieces of that denomination had been known as half dimes.
The Coinage Act of 1857 was an act of the United States Congress which ended the status of foreign coins as legal tender, repealing all acts "authorizing the currency of foreign gold or silver coins". Specific coins would be exchanged at the Treasury and re-coined. The act is divided into seven sections.
James Barton Longacre was an American portraitist and engraver, and the fourth Chief Engraver of the United States Mint from 1844 until his death. Longacre is best known for designing the Indian Head cent, which entered commerce in 1859, and for the designs of the Shield nickel, Flying Eagle cent and other coins of the mid-19th century.
The numismatic history of the United States began with Colonial coins such as the pine tree shilling and paper money; most notably the foreign but widely accepted Spanish piece of eight, ultimately descended from the Joachimsthaler and the direct ancestor of the U.S. Dollar.
The copper-nickel three-cent piece, often called a three-cent nickel piece or three-cent nickel, was designed by US Mint Chief Engraver James B. Longacre and struck by the United States Bureau of the Mint from 1865 to 1889. It was initially popular, but its place in commerce was supplanted by the five-cent piece, or nickel.
The three-cent silver, also known as the three-cent piece in silver or trime, was struck by the Mint of the United States for circulation from 1851 to 1872, and as a proof coin in 1873. Designed by the Mint's chief engraver, James B. Longacre, it circulated well while other silver coinage was being hoarded and melted, but once that problem was addressed, became less used. It was abolished by Congress with the Coinage Act of 1873.
The Susan B. Anthony dollar is a United States dollar coin minted from 1979 to 1981 when production was suspended due to poor public acceptance, and then again in 1999. Intended as a replacement for the larger Eisenhower dollar, the new smaller one-dollar coin went through testing of several shapes and compositions, but all were opposed by the vending machine industry, a powerful lobby affecting coin legislation. Finally, a round planchet with an eleven-sided inner border was chosen for the smaller dollar.