Penny (U.S. coin)

Cent (United States)
Value:	1 cent ($0.01 U.S. dollars)
Mass:	2.5 g
Diameter:	19.05 mm
Thickness:	1.55 mm
Edge:	plain
Composition:	Copper-plated Zinc 97.5% Zn, 2.5% Cu
Obverse
Design:	Abraham Lincoln
Designer:	V.D. Brenner
Design Date:	1909
Reverse
Design:	Lincoln Memorial
Designer:	Frank Gasparro
Design Date:	1959

The United States one-cent coin, commonly called a penny, is a unit of currency equaling one 1/100 of a United States dollar. Its obverse has featured the profile of President Abraham Lincoln since 1909, the centennial of his birth. Since 1959 (the sesquicentennial of Lincoln's birth), the reverse has featured the Lincoln Memorial.

Despite the prevalence of the common term "penny," the U.S. Mint has never actually minted a coin for which this is the official name.

History of composition

The cent's composition was changed in 1982 because the value of the copper in the coin started to rise above one cent. In 1943, at the peak of World War II, pennies of zinc-plated steel were made for a short time due to war demands for copper; a few (the U.S. Mint reports forty) copper cents from 1943 were produced. Following that year, salvaged ammunition shells made their way into the minting process, and it was not uncommon to see coins featuring streaks of brass or having a considerably darker finish than other issues.

In 1974, a few test cents were struck in aluminum, but were never released for circulation.

Designs

The cent has gone through several designs over its two-hundred year history. Until 1857 it was about the size of the current half-dollar coin.

The following types of cents have been produced:

• Flowing Hair Chain Cent, 1793
• Flowing Hair Wreath Cent, 1793
• Liberty Cap Cent, 1793-1796
• Draped Bust Cent, 1796-1807
• Classic Head Cent, 1808-1814
• Coronet Cent, 1816-1857
• Flying Eagle Cent, 1856-1858
• Indian Head Cent, 1859-1909
• Lincoln Wheat Ears Cent, 1909-1958
• Lincoln Memorial Cent, 1959-Present

Throughout its history, the Lincoln cent has featured several fonts for the date, but most of the digits have been old-style numerals, except with the "4" and "8" neither ascending nor descending. The only significant divergence is that the "3" was non-descending (the same size as a "0", "1", or "2") in the early history, before switching to descending for one year in 1934 and then permanently (as of 2004) in 1943.

External link

• The Composition of the Cent (http://www.usmint.gov/about_the_mint/fun_facts/index.cfm?flash=no&action=fun_facts2) from the U.S. Mint website