By 1965, it was decided that silver would be phased out from U.S. currency. Quarters and dimes would contain no silver while half dollars would be made up of 40% silver. However, these 40% silver coins were only produced for a limited amount of time, due to a second silver shortage. They were officially removed from circulation in 1971, making them especially desirable to collectors now. The dime, in United States usage, is a ten-cent coin, one tenth of a United States dollar, labeled formally as "one dime".The denomination was first authorized by the Coinage Act of 1792.The dime is the smallest in diameter and is the thinnest of all U.S. coins currently minted for circulation, being .705 inch (17.91 mm) in diameter and .053 inch (1.35 mm) in thickness. The most common years for quarters and dimes in this collection seems to be around 1999 to 2008. But what about nickels and pennies? Since they don't have the same 1964 silver problem, I think I