The United States Three Cents is an unusual denomination that first appeared in 1851. The original purpose of the Three Cents coins to provide an intermediate denomination between the Cent and Half Dime, making it easier to change some of the odd foreign coins that were legal tender in America at that time. In 1851, postal rates were dropped from five to three cents. While three Large Cents could have been used to purchase a postage stamp, the bulky copper coins were expensive to produce. Thus, a coin of three cents value had two purposes, enough to get the denomination started in 1851.