A U.S. half-dollar is 1.205 inches in diameter and approximately 0.085 inches thick and weighs just slightly more than 0.4 ounces. It is the largest U.S. coin in production.
The half-dollar was first minted in 1794. Made of silver, it featured an image symbolizing liberty. In 1948, Benjamin Franklin's image was featured. Since 1964, the coin features the image of President John F. Kennedy, with the presidential seal on the opposite side. In 1975 and 1976, Liberty Hall was pictured on the reverse side, in honor of the American bicentennial anniversary. The coin currently contains 91.67 percent copper and 8.33 percent nickel. No longer released for circulation purposes, the half-dollar continues to be minted and released as part of coin sets and other collection products.