US quarter
| United States | |
| Value | 0.25 U.S. Dollar |
|---|---|
| Mass | 5.670 g |
| Diameter | 24.26 mm (0.955 in) |
| Thickness | 1.75 mm (0.069 in) |
| Edge | 119 reeds |
| Composition | 91.67% Cu 8.33% Ni |
| Years of minting | 1796, 1804–1807, 1815–1828, 1831–present |
| Obverse | |
 |
|
| Design | George Washington |
| Designer | John Flanagan (1932 version) from a 1786 bust by Houdon / William Cousins (modification to Flanagan's design) |
| Design date | 1999 |
| Reverse | |
 |
|
| Design | various; five designs per year |
| Designer | various |
| Design date | 2010–present |
The quarter, short for quarter dollar, is a United States coin worth 25 cents, one-fourth of a dollar. It has a diameter of .955 inches (24.26 mm) and a thickness of .069 inches (1.75 mm). The coin sports the profile of George Washington on its obverse and its reverse design has changed frequently. It has been produced on and off since 1796, and consistently from 1831 onward.
The choice of 1⁄4 as a denomination—as opposed to the 1⁄5 more common elsewhere—originated with the practice of dividing Spanish milled dollars into eight wedge-shaped segments. "Two bits" (that is, two "pieces of eight") is a common nickname for a quarter.
The current clad version is two layers of cupronickel, 75% copper and 25% nickel, on a core of pure copper. The total composition of the coin is 8.33% nickel, with the remainder copper. It weighs 0.2000 avoirdupois oz, 1/80th of a pound, 0.1823 troy oz, (5.670 grams). The diameter is 0.955 inches (24.26 mm), and the width of 0.069 inches (1.75 mm). The coin has a 0.069-inch (1.75-mm) reeded (or milled) edge. Owing to the introduction of the clad quarter in 1965, it was occasionally called a "Johnson Sandwich" after Lyndon B. Johnson, the U.S. President at the time. It currently costs 11.14 cents to produce each coin (as of 2011). The U.S. Mint began producing silver quarters again in 1992 for inclusion in the annual Silver Proof set. Early quarters (before 1828) were slightly larger in diameter and thinner than the current coin.
The current regular issue coin is the George Washington quarter, showing George Washington on the front. The reverse featured an eagle prior to the 1999 50 State Quarters Program. The Washington quarter was designed by John Flanagan. It was initially issued as a circulating commemorative, but was made a regular issue coin in 1934.
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