The Dime

The dime is a coin worth ten cents, or one tenth of a United States dollar. The dime is the smallest in diameter and the thinnest of all U.S. coins currently minted for circulation. The 32nd President Franklin D. Roosevelt is featured on the obverse of the current design, while a torch, oak branch, and olive branch covering the motto E pluribus unum are featured on the reverse. Nowhere on the dime is the actual value in cents or dollars stated; the coin is labeled only as "one dime."
Mintage of the dime was commissioned by the Coinage Act of 1792, and production began in 1796. A feminine head representing Liberty was used on the front of the coin, and an eagle was used on the back. The front and back of the dime used these motifs for three different designs through 1837. From 1837 to 1891, "Seated Liberty" dimes were issued, which featured Liberty seated next to a shield. In 1892, a feminine head of Liberty returned to the dime, and it was known as a "Barber dime" (named for coin designer Charles E. Barber). The backs of both of the latter two designs featured the words "ONE DIME" enclosed in various wreaths. In 1916, the head of a winged-capped Liberty was put on the dime and is commonly known by the misnomer of "Mercury dime"; the back featured a fasces. The most recent design change was in 1946.
The composition and diameter of the dime have changed throughout its mintage. Initially the dime was 0.75 inch (19 millimeters) wide, but it was changed to its present size of 0.705 inch (17.91 millimeters) in 1828. The composition (initially 89.24 percent silver and 10.76 percent copper) remained constant until 1837, when it was altered to 90 percent silver and 10 percent copper. Dimes with this composition were minted until 1966, although those minted in 1965 and 1966 bear the date 1964. Beginning in 1965, dime also began to be minted with a clad composition of cupronickel; this composition is still in use today.
The term dime comes from the French word disme (modern French spelling dîme), meaning "tithe" or "tenth part," from the Latin decima [pars]. This term appeared on early pattern coins, but was not used on any dimes until 1837