I'd say that this is a good conversation that is taking place over multiple threads (and welcome to CCF @Kushanshah by the way). I'm really glad that we can have a vigorous discussion from different viewpoints yet maintain our civility and graciousness. Good work by @echizento in keeping us all in line.
I don't have a ton of ancient Greek or Roman coins, but for the ones that I do have, none of them have this thick, squared off edge. Fake? Real? I'm not totally sure, but it would make me nervous. Perfect flan roundness is a little less concerning to me.

"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz