You're not alone...We all do from time to time.
Here's how you can see the invisible security stamp on your dinar.
My Genius son figured this out! Enjoy Blanche
Here's how my son discovered the elusive invisible security stamp.
Its simple really.
He hung a simple black light bulb in the closet, turned it on and held the dinar up to the light.
Viola! Secret revealed!
You can do the same! Or you could just carry them with you to a Haunted House during Halloween! :)