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The half cent is the smallest denomination of United States coin ever minted. ==History== First authorized by the Coinage Act of 1792 on April 2, 1792,〔Whitman The Official Guide Book 64th Edition 2011 page: #87〕 the coin was produced in the United States from 1793 to 1857. The half-cent piece was made of 100% copper and was valued at five milles, or one two-hundredth of a dollar. It was slightly smaller than a modern U.S. quarter with diameters 22 mm (1793), 23.5 mm (1794–1836) and 23 mm (1840–1857).〔Whitman The Official Guide Book 64th Edition 2011 pages: #87, #89, #90, and #92〕 Coinage was discontinued by the Coinage Act of February 21, 1857. They were all produced at the Philadelphia Mint. At the time of their discontinuation, the half cent had more buying power than a dime in 2012. Based on the Consumer Price Index, the 2014 value is 14¢. 〔http://www.measuringworth.com/uscompare/〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Half cent (United States coin)」の詳細全文を読む スポンサード リンク
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