Sorry, took a while to get back to this again.

19x17 mm, 3.15 grams.
I'm reading ΓΕΤΑC on the right of the obverse, but I'm not completely confident.
The reverse legend appears to start with ΟΥΛΠΙΑ, which would normally imply "Ulpia", but the only Ulpia that I can find is Ulpia Traiana (aka Xanten, Germany), which is unlikely to have issued provincials in Greek script.
[EDIT: added size and weight.]
[EDIT 2: added ID to title.]