Just a few days ago I added a Mark Anthony Legion II Denarius to my collection. I bought it from a reputable coin dealer as I am just starting out in collecting Ancient Coins.
What I like about this coin is the relative strength of the design as well as the iridescent sheen in the recesses of the coin. This made me overlook the obvious "off centre strike on the obverse. It is a real little "gem" in my collection

I have attached some pics of the Denarius.
How common is this iridescence in ancient coins?
Squire
