The operative word is "was". It was observed and recorded in 1994, and at some point after that it vanished. It is now presumed stolen.

The observation came from T. Coffey, who noted the sculpture's presence within the early ecclesiastical enclosure at Gleninagh in 1994. Ecclesiastical enclosures of this kind, typically defined by a curving boundary wall or earthwork, mark the site of early Christian religious settlements in Ireland, often predating the Norman period by centuries. Carved stone heads are a recurring and not fully understood feature of such sites across Ireland; some scholars connect them to pre-Christian traditions absorbed into early Christian practice, while others see them as purely devotional carvings. Whatever its origins, the Gleninagh head was there in 1994, and is not there now. Its current whereabouts are unknown.