A SIMPLE KEY FOR UNDETECTABLE BANKNOTES FOR SALE UNVEILED

The haptic exploration of banknotes was studied by Wijntjes (2009). This examine indicated that a funds handler receiving a banknote will study it haptically in advance of putting it inside the funds sign up. Usually a banknote is held among two fingers, the index finger around the reverse plus the thumb over the front. The (aspect in the) middle f