Expert: Jim Lawniczak - 5/19/2006

Question
I have got bronze coin of Caligula three sisters, Agrippina,
      Drusilla, and Julia Livilla. My Uncle was found this coin in
      Szczecin (Poland) in his garden. Unfortunately in my country
      they are not able to tell me if this coin is authentic. I know
      that is very very very scarcity value. I wanna to sell this
      coin. What will You reccomend to me? What should i do?
      If I call National Museum in my country I will be not able to
      sell this coin abroad.

      P.S. I will add picture for You if you give me e-mail adresse. How to check autentity of this coin? My grandvather was clining this coin with bronze brush, so it looks like gold now.  

Answer
You have asked me this question about 10 times, so I'll only answer once.  My great grandfather came from Szczecin (was known as Stettin at the time).  Unfortunately, I really don't know ancient coins.  I would suggest that you go to www.google.com and do a search for something like "ancient coin, Agrippina, Drusilla" etc. and keep trying until you get a hit on a site where someone else is selling something like what you have.  Also try www.ebay.com and do a similar search and see if anything is like what you have.  Other than that I can't help as I know nothing about ancient coins, hope all is well, Jim Lawniczak