20 Baht

Sometimes twenty Baht (about USD 0.75) bring something good to you.

(Sorry if my translation is not good enough)

If all Thais, Thinking own ourselves as owner of our motherland;
and doing duties with honest and virtue;
All Problem of our own will be gone.

His Majesty the King; RAMA VIII
1925 – 1946

(So we see that all do the duty as they should or not?)