Fluorescent print

Fluorescent print on the 500-krone banknote

On the 500-krone note there is an invisible flower to the left of the portrait of Sigrid Undset. It is only visible when the note is exposed to ultraviolet light. Fibres in the paper and a narrow strip on both sides of the holographic foil strip will also reflect the light.

Published 26 May 2011 14:59