LIT389122 Twenty-two carat bullet coins from the reign of King Rama IV (gold) by Thai School; (add.info.: before 1860, Thailand produced so-called \'bullet\' coinage consisting of bars of metal, thicker in the middle, bent round to form a complete circle on which identifying marks were stamped; Mongkut (1804-68), or Rama IV fourth monarch of Siam under the House of Chakri, ruling from 1851-68;); Photo 穢 Luca Tettoni; Thai, out of copyright.