American Eagle Gold Bullion Coins shown at Brigandi Coin Co. in New York on Monday Dec. 27, 2004. The coins, shown here in 1 oz., 1/2 oz., 1/4 oz., and 1/10 oz. sizes, are one of the world’s leading gold bullion investment coins. Gold prices, already near a 16-year high, may be headed for the longest rally since Richard Nixon was U.S. president as a falling dollar and renewed concern about inflation boost bullion’s appeal as an investment. Photographer: Zack Seckler/Bloomberg News.