Bullion coins released by the U.S. Mint beginning in October 1986. Five coins are available: a 1-ounce, .999 fine silver coin with $1 face value; a 1-ounce, .9167 fine gold coin with $50 face value; a half-ounce, .9167 fine gold coin with $25 face value; a quarter-ounce, .9167 fine gold coin with $10 face value; and a tenth-ounce, .9167 fine gold coin with $5 face value. Coins are sold at prices based on current metal prices plus a markup