Rather than a carved or lettered headstone of the kind familiar from post-medieval burial grounds, this is a thin slab of old red sandstone, a sedimentary rock common to the region, bearing nothing more than an inscribed cross. It marks Grave No. 390, and its plainness is precisely what makes it worth attention.

Cross-inscribed stones of this type belong to a long tradition in early Irish Christianity, where a simple incised cross on a flat or upright slab served as a grave marker or a votive monument. The form can span a wide range of periods, and without further excavation or dating it is difficult to place this particular stone precisely in time. What is known comes from a graveyard survey conducted in 2011 by Ann Frykler and Robert Hanbidge of Headland Archaeology Ltd., which recorded the stone as part of a broader documentation of the site. Their description is spare but telling: a thin slab, old red sandstone, a cross cut into its face, set in place to mark a burial.