Can You Get Sap's Goat?

I've asked several ancients experts before, including some knowledgeable coin club members and the folks over at FORVM, and never really gotten a definitive answer on this one. Now that there seems to be a critical mass of ancients folks here on CCF, I'll ask here, too.

It's a tiny silver coin, about 12 mm diameter, 1.97 grams weight, with a janiform male-female head on the obverse and a goat on the reverse. There's no inscription or legend on either side, though if you stare at the lumps and bumps in the reverse field for long enough, you start to see things that aren't there.





I bought it from a local coin auction house here in Brisbane way back in 1998. The company doesn't handle too many ancients and the lot description was vague: "Small Greek fractional coin, silver, Obv Janus, Rev. Goat". I was the only bidder and acquired it for $25 plus the juice.

In those pre-Internet days, I had few resources. After searching in vain through numerous catalogues (including the entire University of Queensland copy of BMC ), I learned a lot about ancient Greek coinages but found nothing resembling this; I came to the conclusion that it's some kind of pseudo-ancient fantasy.

However, someone over on FORVM pointed out that there were several unattributed silver coins from somewhere in Cilicia that matched some of the characteristics, and found some similar-looking coins on CoinArchives (unfortunately, those links are now long-dead). At that weight, if it's from that area it should be a diobol. The closest thing on Wildwinds is this hemiobol.

There's enough doubt to prevent me from casting it definitively into the Fantasy bag, but not enough certainty for it to sit comfortably in the Genuine album, either.

So, anyone have any ideas?