The 2016-W Gold Mercury Dime was struck to celebrate the 100th Anniversary of the Mercury Dimes, first struck in 1916. The obverse and reverse of the 2016-W Gold Mercury Dime have the same depiction as the 1916 Mercury Silver Dime. However, the 2016 Gold Mercury Dime is composed of 24 karat gold and weighs one tenth troy ounce.