It is a door or window jamb, spalled and worn, measuring just 36 centimetres in length and barely 15 centimetres above the soil. What makes it worth pausing over is the craftsmanship still visible in the stone: a double chamfer, that is, two angled cuts running along its face, one 14 centimetres wide and the other 11, the kind of careful dressing that would have been applied to the dressed stonework of a church doorway or window opening.

The fragment is one of several scattered architectural pieces in the graveyard, all associated with Tullaghmelan church, the ruins of which stand nearby. A chamfered jamb of this kind is typical of medieval ecclesiastical construction in Ireland, where plain limestone was worked into clean geometric profiles to frame openings with a degree of formality that the surrounding rubble walls would not otherwise suggest. The fact that this piece now lies at ground level, east of the church's east gable, implies it was displaced at some point, perhaps during a collapse, a later burial, or simply the slow rearrangement of a site that has been in use for centuries.