This is a 1965 Kennedy Half Dollar coin certified by NGC as MS 68, with a special strike type known as SMS. The coin is composed of 40% silver and has a fineness of 0.40.
It features a Star Blast White appearance and has been given the additional designation of SP68 Star by NGC. This uncirculated coin was minted in San Francisco and holds a unique historical value as part of the Kennedy series issued by the United States.