Can a real 1950 twenty dollar bill be marked fake by a counterfeit pen?

counterfeit dollar marked Pen
0
Asked

Can a real 1950 twenty dollar bill be marked fake by a counterfeit pen?

0

yes, just had it happen in San Francisco. I received 3 1950 twenty dollar bills from B of A a couple days ago and didn’t notice that they were old until they failed the pen test.