2014-W 3/4 oz 24k Gold John F. Kennedy Half Dollar Proof (w/Box & COA) KM# 587. The item "2014-W 3/4 oz 24k Gold John F.Kennedy Half Dollar Proof (withBox & COA) KM# 587" is in sale since Tuesday, October 5, 2021. This item is in the category "Coins & Paper Money\Coins\ US\Half Dollars\Kennedy (1964-Now)". The seller is "worldcollectable" and is located in Seattle, Washington. This item can be shipped to United States.