THAILAND: Rama IV, 1851-1868, AV 1/4 baht (3.69g), Cr-165, gold "bullet money" (pot duang) type, with Chakra and Mongkut mark (2nd mark of his reign), VF, ex Dr. Robert A. Rosenfeld Collection. Photduang (pod duang) were issued according to the baht system of weights, known among Westerners as the tical, which is the basis of the modern Thai currency. Their earliest common use is from the Sukhothai Kingdom (13th–15th centuries), and they were used by Ayutthaya and its successor kingdoms Thonburi and Rattanakosin up until 27 October 1904, when their use was discontinued long after the introduction of western style machine struck coinage. Each gold baht was generally worth 16 silver baht.

Estimate: USD 300 - 500