Thanks for the info

Would you believe I cleaned those babies myself! All except for the Alexander and the Trajan Decius. I have a seller in Greece who contacts me when he gets a load of ancients. They ain't cheap, sometimes $5.00 a coin, but cleaning them is worth it. I've traded him souvenirs (Rank Insignia, Coffee Cups, BDU Floppy Hats, etc.) from the military base near here.
You should see the Michael IV Byzantine Follis I have, it's simply beautiful. The Christ figure is clear and you can even make out the facial features.
Bone