WOW. DID NO KNOW. I DO KNOW THERE ARE TRAIN LOADS OF COUNTERFEIT USA DOLLARS IN THE REGION.
Good counterfits with right paper & ink also the watermarks when ya hold up in the light.
Here at home at the store if ya pay a $20 spot or more they gotta special kinda marker under the counter theyll run that across the bill see if its "Counterfit" I think its "Translucent" ink & makes a reaction with the paper on the money