In the case of the Kennedy half dollar, one especially valuable proof coin is the 1968-S. In its highest grades with a clear ... The following chart shows the silver content for each year of ...

Per PCGS, a 1964 SP68 Kennedy half dollar sold at a 2019 Stack’s Bowers auction for $156,000. Further, while a higher-grade PCGS-graded SP69 example is shown to exist in the company’s archives ...

Per PCGS, a 1964 SP68 Kennedy half dollar sold at a 2019 Stack’s Bowers auction for $156,000. Further, while a higher-grade PCGS-graded SP69 example is shown to exist in the company’s archives ...