A graveslab of this kind is a flat stone, usually set flush with the ground or propped against a wall, carved with a cross and sometimes additional decoration or lettering to mark a burial. What makes this particular example unusual is not what it shows but what it has become: a monument whose physical whereabouts are, at present, entirely unknown.

The record of its existence rests on a note by Austin Cooper, the eighteenth-century antiquarian whose manuscript observations remain a significant source for early monuments across Ireland. Cooper recorded a second cross-inscribed graveslab at Rathcoole church, a detail later picked up by Price in 1942. The site reference connects it to the broader complex at Rathcoole, a settlement with medieval ecclesiastical origins in south County Dublin. Whether Cooper examined the slab directly, or was working from an earlier account, the notes do not say. What they confirm is that at some point the stone existed, was observed, and was considered worth recording. Since then, it has not been reliably located.

For anyone drawn to the church at Rathcoole with this slab in mind, the honest position is that a visit may not resolve the question. The stone could have been moved, reused, buried, or simply overlooked among other fabric at the site. It is worth examining any flat stones at ground level within or around the church enclosure, and checking against walls or in grass margins where displaced slabs sometimes end up. The carved cross on monuments of this type is often worn and can be easy to miss in flat light. Overcast days, which are not in short supply, can actually help, as low-contrast light sometimes reveals shallow carving more clearly than direct sun. If the slab does surface, the cross form and any accompanying ornament would help date it and place it within a wider tradition of medieval funerary carving in the region.