I have some theories about this. I can see D.II.D:G.R.IM.S. and probably A. The D would be last letter of the name of the ruler. D:G.R.IM.S (and probably A) means Dei Gratia Romanorum Imperator Semper Augustus. So we are looking for a Holy Roman Emperor. I think it could be either Ferdinand II or Rudolf II (in latin it would be Ferdinandus and Rudolphus, but if the coin is small they would just make it Ferd.II or Rud.II) On the other side I think I see 99(1599? 1699? 1599 would be consistent with the rule of Rudolf II) and MONE.NOVA.






















