LIT389121 Bullet coins from the Ayutthaya period (metal) by Thai School; (add.info.: Ayutthaya was a Siamese kingdom that existed from 1351 to 1767; 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;); Photo 穢 Luca Tettoni; Thai, out of copyright.