Coins were struck for the Norse kings of Dublin between 995 and 1150. The coins are generally imitations of English pennies and this one is a copy of a long cross penny of Aethelraed II (841-849AD). Another Hiberno-Norse coin found at Whithorn in 1911 is now in Glasgow Museum and Art Gallery.
The obverse shows a head facing left with a cross on its neck. The reverse has a long cross with a stylised hand in two of the angles.