Thailand has and does enforce the national lese majeste laws. These laws
expressly prohibit any act - verbal, physical or written, that shows
insolent or disrespectful behavior toward any member of the Royal
family. In same time, all currency in Thailand, paper and coin, bears a
portrait of His Majesty King
Bhumibol Adulyadej or a deceased
relative. With this in mind, DO NOT EVER: step on a coin to stop it from
rolling away. DO NOT step on a Thai banknote to stop it from blowing
away. DO NOT throw a note or coin in anger towards another person. DO
NOT tear, burn or otherwise deface a note or coin.
Paper notes come in denominations of: 20, 50, 100, 500 and 1,000. The
most commonly used coin is the 10 baht and the most commonly used note
is the 100 baht.
There are still some old 10 baht notes in circulation, and you may
even encounter a special "Commemorative issue" 60 baht notes. It is
reported that the 50 baht note is being phased out of general
circulation.
It is a 60 baht currency, which commemorated the 60th year of King
Bhumibol Adulyadej of either his birthday or his 60th anniversary on the
throne. This is an interesting large square note and obviously could
not fit any wallet without it being folded in 4 at least.
credit by http://thailandforvisitors.com/general/money/old10.html