https://www.academia.edu/37247782/Contemporary_Counterfeit_Coins_of_the_Crusader_States The article shows comparison photos of the counterfeits and original issues. I have been seeing these a lot on ebay and they have even being making their way into auction house lots. I first noticed them in Byzantine coinage in my own field of tetartera. In the case of tetartera they are normally reproducing the rarer issues from post 1203 rulers. Particularly in the style of figure 6 and Figure 8 and Figure 17.
