ARGENTINA. La Rioja. 2 Reales, 1843-R B. La Rioja Mint. PCGS AU-58 Gold Shield. KM-15; CJ-65. One-year type. An exceptional minor issue, appealing not only for its mountain and sunface illustrations which appear on both sides, but for the toning it has acquired through the ages, which invigorates the surfaces with splashes of lustrous blue, green and mauve tone. Considering the appearance, a coin that would be truly difficult to replace at any cost. From the Matthew Orsini Collection.