Well, among the coins that match in terms of imagery may be some AE's of Paros. My first thought is "goat" for the reverse. I like the Paros' Demeter profiles in relation to the bust on yours.
However you'd have to find a denominational/size match with right facing goats.
Here's a decent match-up in terms of shapes, imo:https://www.acsearch.info/search.html?id=101711
But the size is wrong.
Here's a decent match-up in terms of size, but the goat is facing the wrong way:https://www.acsearch.info/search.html?id=399266
I haven't looked extensively...maybe there's a Paros issue that matches on both accounts?
On the other hand: is that possibly an "A" or delta in the reverse right field? Is there a legend there? That might throw a wrench in the Paros idea...
Was just about to hit "Post New Reply" when I spotted a size and goat-orientation match from Paros:https://www.acsearch.info/search.html?id=760011
Still don't know about that possible legend though...