It is a section of the chamfered head of a round-headed doorway, worked with punch dressing, the technique of striking a pointed tool repeatedly across the stone surface to produce a textured finish. It is all that is physically confirmed of what was almost certainly a church, and even that much ended up in the wrong field.

The writer and folklorist known as An Seabhac recorded ruins of a possible church in 1939, placing them in a field called Gort an Bhráthar, meaning the friar's field or brother's field, on the north-western side of a low hillock roughly 200 metres from the shore. The name alone suggests some memory of ecclesiastical use had survived in local tradition. When the doorway fragment and two other dressed stones were later unearthed, the discovery confirmed that a church-site had indeed existed somewhere in the vicinity, but the two other stones have since gone missing, and the precise location of the building itself has never been identified. What remains is this single carved piece, repurposed into a field boundary, the church reduced to a place-name, a folk memory, and one carefully worked curve of sandstone.