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Junk silver is an informal term used in the United States, United Kingdom, Canada and Australia for any silver coin which is in fair condition and has no numismatic or collectible value above the bullion value of the silver it contains. Such coins are popular among people seeking to invest in silver, particularly in small amounts. The word "junk" refers only to the value of the coins as collectibles and not to the actual condition of the coins; junk silver is not necessarily scrap silver.〔 〕 Precious metals including silver are measured in troy ounces (ozt). A spot price for silver is the price for a troy ounce of silver which is 99.9-percent pure, or 999 fine. Silver coins including junk-silver coins have set silver-alloy contents ranging from 35-percent to 90-percent or more. The term "coin silver," for example, refers to 90-percent silver alloy which was the most common alloy used to mint silver U.S. coins. Any combination of 90-percent silver U.S. coins which have a face value of US$1.00 contains 0.715 troy ounces of 99.9-percent silver (0.7234 troy ounces if uncirculated), except for the silver dollars (Morgan and Peace) which contain .7736 troy ounces of silver. In other words, a full troy ounce of 99.9-percent silver is contained in any combination of 90-percent silver U.S. coins which have a face value of US$1.40.〔 〕 ==Common U.S. coins== The most commonly collected junk-silver U.S. coins were minted before 1965 and include Morgan and Peace dollars; Liberty Head "Barber," Walking Liberty, Franklin and Kennedy half dollars; Liberty Head "Barber," Standing Liberty and Washington quarters; Liberty Head "Barber," Winged Liberty Head "Mercury" and Roosevelt dimes; and Jefferson "Wartime" nickels.〔 〕 Dollars *Morgan (1878–1904 & 1921) -- 90-percent silver *Peace (1921–1928 and 1934–1935) -- 90-percent silver Half-Dollars *Liberty Head "Barber" (1892–1915) -- 90-percent silver *Walking Liberty (1916–1947) -- 90-percent silver *Franklin (1948–1963) -- 90-percent silver *Kennedy (1964) -- 90-percent silver *Kennedy (1965–1970) -- 40-percent silver Quarters *Liberty Head "Barber" (1892–1916) -- 90-percent silver *Standing Liberty (1916–1930) -- 90-percent silver *Washington (1932, 1934–1964) -- 90-percent silver Dimes *Liberty Head "Barber" (1892–1916) -- 90-percent silver *Winged Liberty Head "Mercury" (1916–1945) -- 90-percent silver *Roosevelt (1946–1964) -- 90-percent silver Nickels *Jefferson "Wartime" (1942 (partial)-1945) -- 35-percent silver 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「Junk silver」の詳細全文を読む スポンサード リンク
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