Comment by sabatonfan
3 months ago
Is this something strictly with the US currency notes or is the same true for other countries currency as well?
3 months ago
Is this something strictly with the US currency notes or is the same true for other countries currency as well?
It's most notes, and for EU and US notes (as well as some others), it's based on a certain pattern on the bills: https://en.wikipedia.org/wiki/EURion_constellation
Of course, countries with plastic currency notes (like Australia) don't have to worry about this because their notes incorporate hard-to-counterfeit features like transparent windows.