1) Mark the note, for example, with a cross, in an area which is lightly-coloured and not printed on.
2) If the marking shows up as bright yellow, your banknote is genuine and therefore valid!
3) If the marking goes dark and stays dark, your bank note is forged!
4) Marking disappears again after a few hours.
Identify forged noteds in seconds!
Valid for Most Current International Bank Notes!
Successfully Tested On Euro Notes!