The Kennedy Half Dollar, designed by Frank Gasparro and Gilroy Roberts, began its mintage in 1964 and continues to be produced to this day. This example was minted at the San Francisco Mint in 2020  and is in perfect Proof 70 Ultra Cameo condition.  Struck from .999 pure silver, this stunning Kennedy Half Dollar carries the First Day of Issue pedigree.  With a miniscule mintage of only 313,416 coins, this 2020-S .999 Silver Kennedy Half Dollar is known as a tremendous Absolute Rarity.   Upon its release in 1964, the Kennedy Half Dollar was struck from 90% silver. The following year, the silver content was lowered to just 40%. By 1971, every circulation Kennedy Half Dollar struck contained no silver in its composition.  Beginning in 2019, the U.S. Mint began producing a limited amount of Proof Kennedy Half Dollars struck from  .999 pure silver. As the second year of issue for the .999 fine pure silver Kennedy Half Dollar, this is truly a historic coin.