It is easy to overlook, and in some ways that is the point: the cross carved into its surface is rendered in such shallow relief, just three millimetres proud of the stone, that it reads more as a suggestion than a declaration. The upper part of the cross survives, with the head and one arm splaying very slightly outward, and the whole thing measures roughly a quarter of a metre square. It is a quietly odd object, somewhere between a grave marker and a waypoint, occupying a site that accumulated early Christian stonework over many centuries.

The slab sits within St. Berrihert's Kyle, an ecclesiastical enclosure whose oval boundary and collection of carved stones point to early medieval origins. A kyle, in this context, refers to a small sacred enclosure, often associated with a named saint, where votive stones were gathered or where pilgrims marked out devotional circuits. This one is associated with St. Berrihert, and it contains a remarkable concentration of cross-slabs. The particular stone recorded as slab 66 by the scholar Ó hÉailidhe in 1967 was at that time fixed into a station on the boundary bank, specifically the ninth station of what appears to have been a formal penitential round. The oval stone enclosure that now houses the collection was built by the Office of Public Works in 1946, a mid-twentieth century intervention that formalised and protected what had, by then, become a significant grouping of early Christian stonework. Since that survey, the slab has shifted; it now lies loose rather than standing upright, and the back of the stone, while badly spalled and flaking, shows no sign that it ever carried any decoration on that face.