Holograms were first used on currency in the late 1980s. Today they are used in or on banknotes issued by more than half of the world’s central banks and issuing authorities. Hologram has been proven to be a very efficient device for banknotes protection.

For more details about the application of hologram on banknotes, please check below links:

http://www.ihma.org/files/uploadedfiles/103/Banknotes%20CN%20Sep%2003.pdf