
The 40% silver Kennedy half dollar refers to the coins minted in the United States from 1965 to 1970, which contain 40% silver and 60% copper by weight. This specific composition came into effect following the rise in silver prices, which made it economically impractical to produce coins with higher silver content. The coins have a distinctive design featuring President John F. Kennedy on the obverse and the Presidential Seal on the reverse. The 40% silver Kennedy half dollars are often sought a