In the shadow of Holy Trinity this tattoo shop's sign intrigued me. Cruithni? Who or where or what is a cruithni. A short visit to our mutual friend Mr Google reveals that the Cruithni were a bronze age bunch of people living in Ulster about 700BC. Quite what that has to do with this place I don't know, maybe they just liked the sound of it. They have a website and it's here. Also while I'm here I may as well point out that this building or rather a building on this site was the origin of the Smith & Nephew health products company.