Some of the most intriguing ogham stones are the ones that no longer exist. Ogham is an early medieval script, used primarily in Ireland between roughly the fourth and seventh centuries, in which letters are represented by notches and strokes cut along the edge of a standing stone. The stone once associated with the graveyard at Feonagh church, on the northern crest of the Suir escarpment in County Waterford, was never deciphered, never fully confirmed, and is now gone entirely, leaving behind only a trail of scholarly uncertainty.

The stone was first noted by Blackett in 1860 to 1861, who recorded it as a possible ogham stone within the graveyard attached to Feonagh parish church. Even then, the inscription, if there ever was one, went unread. By 1868 or 1869, it had already disappeared from the record. The scholar R.A.S. Macalister, who catalogued ogham stones across Ireland in his landmark 1945 corpus, suspected the stone had not simply been lost or buried but actively broken apart, with the fragments absorbed into a nearby field wall. It is a fate that befell many such stones across the country, their carved edges becoming anonymous rubble once their significance was forgotten or ignored.