There were two paleolithic finds in Ireland before this one, one was the worked piece found in a quarry at Mell in Drogheda, just up the road from where I lived. It's thought this was carried by glacier and deposited there.

The second axe is a bit bizarre, it was found stuck in a wall at the iron age fort at Dun Aonghusa, some think it was a prank or just very fortuitous! It's presence there is pretty suspect and not thought to add any weight to paleolithic habitation. I think this is the one on display in the museum.