Help To Identify Roman Coin

...huh. Weird. I can read ΚΑΙCΑΡΕΩΝ ΤΤ ΑΡΓΑΙΩ ΕΤ ς on the reverse, which would point to Caesarea in Cappadocia - except I can't find any of their coins with anything resembling this legend (or, rather, there's a few with almost exactly this legend but very different reverse designs).

Unfortunately the legible obverse legend is the generic CEBACT[O] "Augustus". The similar reverse legends mostly show up under Lucius Verus and the portrait is definitely not him (too little nose).

Not confident of my reading of the lowest reverse line, with the presumed regnal year. Plausibly it's ΕΤ ςΙ "year 16", which would point towards an unusually long reign and make Hadrian a good candidate. Maybe it's not a regnal year at all.

In any case I can't find this coin anywhere either.

thank you, kamnaskires.