That looks like a cool feature, but I'll be darned if I can make it appear on my note.
I have a 2000 lei note as pictured and I have tried both a red laser pointer, a flashlight, and regular room lighting and have not been able to see even a hint of what is pictured above. I do however see a change in the clear window that is diamond-shaped. This is likely the device that causes the diffractive optical feature, but I can't seem to get it to work right.
The note I have is as genuine as I have ever seen. You would have a very, very difficult time convincing me otherwise.
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
President, IBNS Ontario Chapter.
Treasurer, Waterloo Coin Society.
Show Chair, Cambridge Coin Show.
Fellow of the Ontario Numismatic Association.