Unidentified Ptolemaic Bronze

I pulled this out from a junk box for about $8 last month, and I'm having some trouble identifying it. It's obviously Ptolemaic, but beyond that I'm not really sure. My best guess is Ptolemy II.
As you can see, the reverse has sustained some damage, though it isn't as bad as it looks in the pictures.
The diameter is about 24 mm, and though I can't give you an exact mass as my scale stopped working recently, I'd think around 6-7 grams.


Thanks.