I'd never heard of "EURion constellation". The little video on this page has a nice explanation: https://www.huffpost.com/entry/counterfeit-money-eurion-const

I'd never heard of "EURion constellation". The little video on this page has a nice explanation: https://www.huffpost.com/entry/counterfeit-money-eurion-constellation_n_576a3aa8e4b0c0252e77b6c4 https://www.huffpost.com/entry/counterfeit-money-eurion-cons...