It is a moneychanger's stamp. You said in your other thread that it doesn't come off in acetone. However, not all ink stains will come off in acetone.
In Australia, it is illegal for banks, shops, private individuals or anyone else to place any kind of mark or stamp on a note. However, this law does not apply overseas. Money exchangers, particularly in Asia, are in the habit of placing these small marks onto banknotes that they handle.
You can see similar stamps on Australian notes in these threads:
http://goccf.com/t/245795
http://goccf.com/t/234091
http://goccf.com/t/159382
http://goccf.com/t/153328
In Australia, it is illegal for banks, shops, private individuals or anyone else to place any kind of mark or stamp on a note. However, this law does not apply overseas. Money exchangers, particularly in Asia, are in the habit of placing these small marks onto banknotes that they handle.
You can see similar stamps on Australian notes in these threads:
http://goccf.com/t/245795
http://goccf.com/t/234091
http://goccf.com/t/159382
http://goccf.com/t/153328
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis




















