The start of the coin issuance in Thailand started the funan Kingdom
Dating from the first century to the sixth century the coin was oc-eo the funan kingdom was established as an Indian Hindu kingdom. The Poan coin shows the sun and the back of Vishnu's hair.
In the sixth century, the funan kingdom was replaced by the Dwarven kingdom until the eleventh century.
The coins were engraved in the big rabbit shell, and the goat. Later, a number of kingdoms from the eleventh century to the reign of King Rama I to King Rama III continued to use the Duang currency.
During the reign of King Rama the quarters of the Thai monetary system changed to King Rama eighth today using the new currency Satang and Baht