Comment by sabatonfan
1 day ago
Is this something strictly with the US currency notes or is the same true for other countries currency as well?
1 day 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