Possibly Celtic Potin? Help with identification please.

Continuing on the quest of identifying this batch of coins for a friend, can anyone put me right on this one? It looks to be a Celtic Bronze, possibly Potin, but I can't find a good match in the books.
Measures about 20mm at the longest.
Thanks,

 

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I love these types! Great coin.
I found a similar fella on AC search: Armorican, Channel Islands and NW Gaul, Celtic issues of the Belgic migration, Armorican billon stater, Class II, (75-50 BC)

https://www.acsearch.info/search.ht...s=1&thesaurus=1&order=0&currency=usd&company=

 

Good job, @Ryro! I find it very hard to attribute Celtics because I don't know much about them. Your link goes to other types so here's a link to a Sixbid archives search for "Amorican". I think you've nailed it

https://www.sixbid-coin-archive.com/#/en/search?text=armorican

 

Hi PaddyB,

if you would be pleased to discover it by yourself : http://www.writer2001.com/exp0003.htm