The enigmatic O'Neil REX coin (Parsons, 1921) - is this the first native Irish coin ever struck in Ireland ?

Irish Coin Daily: Late Medieval Gaelic Coinage ???

Date: c. AD 1040-60 ???   Description: This coin is one of the great enigmas of Irish numismatics – only 2 are known and no one seems to know who minted it, or where it was minted. The most recent find was excavated by professional archaeologists and it will be interesting to see how far back…