body: I know that making, or preparing to make, counterfeit bills is illegal. I also know that if you use counterfeit currency you can have problems whether you were aware of it or not.
  
  
  I would like to buy or acquire counterfeit bills to keep for educational research purposes. Is there a legal way to do this?
  
  
  I am interested mainly in Polish Złoty as well as Euro and Dollar bills.
  
  
  
title: Is it permissible to collect counterfeit currency?