2016-W Walking Liberty Centennial Gold Coin, Half Dollar Denomination, with US Mint Box and Certificate of Authenticity. This coin is 1/2 troy ounce of. 9999 pure gold, straight from the US Mint. The item "2016-W Walking Liberty Centennial Gold Coin WithBox and COA" is in sale since Friday, August 16, 2019.This item is in the category "Coins & Paper Money\Coins\ US\Commemorative\Modern Gold (1984-Now)". The seller is "sandan000" and is located in Newport News, Virginia. This item can be shipped to United States.