​The design was printed only on one side; so the note was called "Uniface Banknote". 

​​​The design was printed on both sides for the first time. 

It was the first banknote series that had the portrait of H.M. the King of Thailand as main element at front side.

The front showed a portrait of King Rama VIII at  young age as main element at the front side.

Thai government decided to print banknotes by the Royal Thai Survey Department, the Naval Hydrographic Department.​  

The front portrayed King Rama VIII at young age as main element at the front side.

​This series was printed by the Royal Thai Survey Department and the Naval Hydrographic Department. 

​This series was printed by private printing companies.

The Thai government turned to the U.S. government for printing assistance. 

As been circulated for over 20 years, the colors of the 9th Series are the standard for current Thai banknotes.​​

The portrait of the King Rama IX on the front and the Suphannahongse Royal Barge on the back with multi-colored and intaglio printing. 

The issue of this note first enabled the Note Printing Works to manage the whole production process

To glorify Thai monarchs in history who have been revered and honored with the title The Great

To commemorate the Bicentennial Celebration of Bangkok in 1982, using vignettes of significant historical events of Bangkok as main elements on the back of the banknotes. 

To make known of the activities of the Chakri Dynasty Kings in terms of their contributions to the development of the country in various sectors. 

The fist time to make the same width for all denominations. 

The images of the Great Kings from Sukhothai, Ayutthaya, Thonburi and Rattanakosin were used.

The images of all Kings in the Chakri dynasty have been used.