The quarter, formally known as the quarter dollar, is a coin in the United States valued at 25 cents, representing one-quarter of a dollar. Adorning its obverse is the profile of George Washington, while its reverse design has undergone frequent changes since 1998. Since its initial production in 1796, the quarter dollar has held a significant place in American numismatics, with consistent production since 1831.
Proof coinage refers to special early samples of a coin issue, historically made for checking the dies and for archival purposes. In modern times, proofs are often struck in greater numbers, especially for coin collectors (numismatists). Nearly all countries have issued proof coinage.
The fineness of a precious metal object represents the weight of fine metal therein, in proportion to the total weight which includes alloying base metals and any impurities. Alloy metals are added to increase hardness and durability of coins and jewelry, alter colors, decrease the cost per weight, or avoid the cost of high-purity refinement. For example, copper is added to the precious metal silver to make a more durable alloy for use in coins, housewares and jewelry. Coin silver, which was used for making silver coins in the past, contains 90% silver and 10% copper, by mass. Sterling silver contains 92.5% silver and 7.5% of other metals, usually copper, by mass.
The American Silver Eagle is the official silver bullion coin of the United States. It was first released by the United States Mint on November 24, 1986, and portrays the Goddess of Liberty in a design by Adolph A. Weinman that was originally used on the Walking Liberty half dollar from 1916 to 1947.
The American Gold Eagle is an official gold bullion coin of the United States. Authorized under the Gold Bullion Coin Act of 1985, it was first released by the United States Mint in 1986. Because the term "eagle" also is the official United States designation for the pre-1933 ten dollar gold coin, the weight of the bullion coin is typically used when describing American Gold Eagles to avoid confusion with the pre-1933 coins. This is particularly true with the 1/4-oz American Gold Eagle, which has a marked face value of ten dollars, the same as that of its predecessor.
The American Platinum Eagle is the official platinum bullion coin of the United States. In 1995, Director of the United States Mint Philip N. Diehl, American Numismatic Association President David L. Ganz, and Platinum Guild International Executive Director Jacques Luben began the legislative process of creating the Platinum Eagle. After over two years of work, the 99.95% fine platinum coins were released by the United States Mint in 1⁄10, 1⁄4, 1⁄2 and 1 troy oz denominations. In late 2008, the fractional denominations were discontinued, leaving only the one ounce denomination. The Platinum Eagle is authorized by the United States Congress, and is backed by the United States Mint for weight, content, and purity. Its obverse was designed by John Mercanti, and portrays the Statue of Liberty by Frédéric Auguste Bartholdi.
The Morgan dollar is a United States dollar coin minted from 1878 to 1904, in 1921, and beginning again in 2021 as a collectible. It was the first standard silver dollar minted since the passage of the Coinage Act of 1873, which ended the free coining of silver and the production of the previous design, the Seated Liberty dollar. It contained 412.5 Troy grains of 90% pure silver. The coin is named after its designer, United States Mint Assistant Engraver George T. Morgan. The obverse depicts a profile portrait representing Liberty, modeled by Anna Willess Williams, while the reverse depicts an eagle with wings outstretched. The mint mark, if present, appears on the reverse above between D and O in "Dollar".
The Britannia is a bullion coin issued by the Royal Mint. It has been minted in gold since 1987, in silver since 1997, and in platinum since 2018. The reverse of the coin patterns feature various depictions of Britannia, a feminine personification of the United Kingdom, while the obverse features the effigy of the monarch of the United Kingdom with the legend around it.
The West Point Mint is a U.S. Mint production and depository facility erected in 1937 near the U.S. Military Academy in West Point, New York, United States. As of 2019 the mint holds 22% of the United States' gold reserves, or approximately 54,000,000 troy ounces (1,700,000 kg). The mint at West Point is second only to the gold reserves held in secure storage at Fort Knox. Originally, the West Point Mint was called the West Point Bullion Depository. At one point it had the highest concentration of silver of any U.S. mint facility, and for 12 years produced circulating Lincoln cents. It has since minted mostly commemorative coins and stored gold.
The Manx Noble are platinum, gold or silver bullion coins distributed by the Isle of Man and minted by private companies. While platinum coins have been minted since the early 1800s, the Noble is the first platinum coin created for investors. The coins are not minted every year, but have an erratic schedule. Nobles are legal tender but they do not have a fixed face value; instead, like the Krugerrand or Mexico's Libertad, they are legal tender to the value of their precious metal content.
The Library of Congress bimetallic eagle is a modern U.S. commemorative coin issued in the ten dollar denomination. It is the first gold and platinum bimetallic coin to be issued by the United States Mint. It was issued in proof and business strike qualities.
The Jefferson nickel has been the five-cent coin struck by the United States Mint since 1938, when it replaced the Buffalo nickel. From 1938 until 2004, the copper-nickel coin's obverse featured a profile depiction of Founding Father and third U.S. President Thomas Jefferson by artist Felix Schlag; the obverse design used in 2005 was also in profile, though by Joe Fitzgerald. Since 2006 Jefferson's portrayal, newly designed by Jamie Franki, faces forward. The coin's reverse is still the Schlag original, although in 2004 and 2005 the piece bore commemorative designs.
The America the Beautiful quarters were a series of fifty-six 25-cent pieces (quarters) issued by the United States Mint, which began in 2010 and lasted until 2021. The obverse (front) of all the coins depicts George Washington in a modified version of the portrait used for the original 1932 Washington quarter. There were five new reverse (back) designs each year, each commemorating a national natural or historic site such as national parks, national historic sites, or national forests – one from each state, the federal district, and each territory. The program was authorized by the America's Beautiful National Parks Quarter Dollar Coin Act of 2008 (Pub. L. 110–456 .
The America the Beautiful silver bullion coins comprise a series of silver bullion coins with a face value of a quarter dollar. The coins contain five troy ounces of silver, making them the largest silver bullion coins ever issued by the United States Mint. The design of the coins duplicates exactly—though enlarged—each of the America the Beautiful quarters. They were issued from 2010 to 2021. The coins were available for sale during the year in which their corresponding circulating coin is issued. The coins are distributed by the United States Mint's network of authorized bullion dealers, and may be resold at the discretion of the Director of the National Park Service.
The Russian George the Victorious is a bullion coin issued in gold and silver by the Central Bank of Russia. Mintage began in 2006 with quarter-troy ounce (7.78g) gold coins with a face value of 50 rubles and later in 2009 a one-troy ounce silver coin was introduced with a face value of 3 rubles. Since then, tenth, half, and one-troy ounce gold coins have been minted.
The American Palladium Eagle is the official palladium bullion coin of the United States. Each coin has a face value of $25 and is composed of 99.95% fine palladium, with 1 troy ounce actual palladium weight.
The Apollo 11 50th Anniversary commemorative coins were issued by the United States Mint in 2019 to commemorate the 50th anniversary of the first crewed landing on the Moon by Apollo 11 astronauts Neil Armstrong and Buzz Aldrin. Consisting of a gold half eagle, two different sizes of silver dollars, and a copper-nickel clad half dollar, each of the four was issued in proof condition, with all but the larger silver dollar also issued in uncirculated. The gold coins were struck at the West Point Mint, the silver at the Philadelphia Mint and the base metal half dollars at the mints in Denver and San Francisco.
The American Buffalo silver dollar is a commemorative silver dollar issued by the United States Mint in 2001. The coin commemorates both the National Museum of the American Indian and the Buffalo nickel, the latter serving as the basis for the dollar's design. The coin was authorized by Pub. L. 106–375 (text)(PDF).
The Christopher Columbus Quincentenary commemorative coins are a series of commemorative coins which were issued by the United States Mint in 1992 for the Columbus Quincentenary.
The American Silver Eagle is a United States bullion coin that has been minted since 1986. Each coin is .999 fine silver. Circulating coins have been minted at the Philadelphia Mint, San Francisco Mint, and West Point Mint, though do not bear a mint mark. Proof and uncirculated coins do have mint marks. The reverse design was changed in 2021.
