NGC About Uncirculated 50 - KM#643 Gold with Silver 38+ MM Large silver dollar size. Radiant sun face above mountain peaks with legend: "Reforma Libertad Justicia Y Ley" (Freedom Justice and Law Reform) Rev: National Arms with date and denomination below. Reeded edge. Nicely struck for the issue with original uncleaned surfaces. Luster in protected areas. Coin has 0.595 fine gold in with the silver alloy.