I posted this conundrum a while back but, after more research, I'd like to repost it to see if any E. European/Gaul Celtic experts can help a bit more...
It was sold as NW Gaul Carnutes 3rd cent BC - which it can't be as the Carnutes didn't mint coins that early. I have found hints that it could be either NW Gaul OR 3rd Cent BC but not both.
The OBV looks very like a laureate head of Zeus, typical of a 3rd Cent BC Danubian imitation of Philip II as here https://www.acsearch.info/search.html?id=4584936
The stylised hair and laurel wreath is very distinct. This means it is not NW Gaul but the date is approx right.
The REV is either a horse, wolf or lion, (possibly winged?) with a wheel or pellet-in-amulet below. The tail curves up and round towards the animal's back. These two, esp the tail, are distinctive features. It's also worth pointing out that the animal is stationary (two vertical forelegs on the ground), whereas Celtic horses are invariably prancing, with their forelegs off the ground.
The TAIL: With one exception https://www.acsearch.info/search.html?id=6778003
I can find NO NW Gaul coins with a tail that rises up. Dozens of Celtic horse coins I've looked at all have their tails drooping downwards. Ditto wolves' tails. The only ones that do so apart from the example I cite are all lions. (This British one doesn't count surely? https://www.acsearch.info/search.html?id=4231676)
The WHEEL/PELLET: Appears on both Canutes (rarely) and other Gaulish coins see https://www.acsearch.info/search.html?id=5991929
... but it's also on the Danubian 3rd Cent BC one I linked at the start with the Apollo head on the obverse.
If you have read this far, thanks. Help to nail this one down would be much appreciated!
Wt 4.9 grams