This is the first ever book in English about Thai coins and the several types of money used by the various ethnic cultures that existed in this area. It covers the time period from the earliest types of money, both in the form of coins and in other forms such as shells and various types of ingots used in what is now Thailand. It also includes the introduction of the baht currency system, a system based on divisions of eight (the octuple system), both in the form of pot duang and flat coins and the beginnings of the present day decimal coinage. It describes the development of Thai money through a continuous economic-historical review with excerpts from a variety of sources, including the Sukhothai inscriptions, the royal chronicles of Ayutthaya, the records of individual Dutch, French and Portuguese travelers and unpublished documents from the Royal Archives …