Those Spanish Vitellian denarii are indeed wonderful. Your coin has a most spectacular portrait! Congrats on an excellent addition.
There are people on another forum say this coin is fake, why I don't want to sound too harsh, but I'm not liking the way this coin looks. You can see where it was mounted probably as a piece of jewelry. The obverse bust details don't look right the facial features seem different than the examples I've seen. The lettering looks mushy and not well defined, that could however be cause by harsh cleaning. I have some doubts that this is a genuine example. I could be wrong though, I often am.
I know that feeling and perception well---I seem to be wrong about as often as I am right and mostly it's just a 'feeling' rather than any actual physical characteristic... This is my only Vitellius, purchased decades ago---with a different reverse...and in need of a newer photo than the one I took here two months ago. I assume you compared as many of the same types on acsearch etc???
I really like the beauty of Vittelian ugliness as shown on this wonderful coin. Mine is very different from the first days when the mint workers were till in the habit of cutting Otho portraits.