FIELD: physics.
SUBSTANCE: note includes base material with first surface and second surface opposite to first surface. Note also includes identification features printed on the first surface and the second surface indicating the type and value of the note. Note also includes the first unique identifier printed on the note, and the second unique identifier on the note. Note also includes a removable coating applied on the second unique identifier on the first surface or the second surface of the note. Note also includes opaque substrate applied on second identifier on note, wherein opaque substrate is applied on note surface opposite to surface of removed coating.
EFFECT: disclosed is a note for use as currency.
30 cl, 9 dwg
