2445 on the agenda is the issue of banknotes, namely King Chulalongkorn. Ordered the enactment Siambanknote. Rattanakosin era 121 on June 24, 2445 and the bill in order to establish the Department of the Treasury. To act as issuing and paying the bills. And open to the public, the metal currency exchange banknotes since September 23, 2445, therefore, that the currency has to play a role in the financial system of Thailand seriously since then.