Most of America’s circulation silver coins transitioned from 90% silver content directly to the modern cupro-nickel alloy in 1964. However, two of the nation’s circulating denominations continued with actual silver content in the coins. From 1965 to 1970, the Kennedy Half Dollar coin remained in production with 40% silver content. Those 1965-1970 Kennedy Half Dollars featured 40% silver and 60% copper. Additionally, the reintroduced silver dollar in the form of the Eisenhower Dollar was available with the same 40% silver mixture for collectors in the 1970s. JM Bullion has $1 Face Value lots of these 40% Silver Coins available in unsorted groups. This means you can purchase $1 (USD) worth unsorted coins made up of either half dollars or single silver dollars. Today, those 40% Silver Coins are available to you online from JM Bullion.