A cross-inscribed stone retrieved from Mullaghmore in County Sligo, a townland within the barony of Carbury, was removed at some point and acquired by the National Museum of Ireland, where it appears on the 1957 acquisitions list. The stone itself is the kind of object that early medieval communities carved in considerable numbers across Ireland, incising a simple cross form into a slab or boulder, often to mark a boundary, a burial site, or a place of local devotion. These inscriptions are modest by design, rarely monumental, and that modesty is part of what makes them easy to overlook.

The original site at Mullaghmore, recorded in the Archaeological Survey of Ireland under the reference SL002-024, is in a part of County Sligo with a deep layer of early Christian and prehistoric activity. The barony of Carbury covers a stretch of territory that runs toward the Curlew Mountains and includes a considerable density of early medieval remains. Cross-inscribed stones of this type are generally associated with the early Christian period in Ireland, roughly the fifth to twelfth centuries, when the practice of marking sacred or significant ground with a carved cross was widespread. Whether the Mullaghmore stone was associated with a church site, a burial ground, or some other feature of the landscape is not recorded in the available notes. What is known is that by 1957 it had entered the national collections, a process that removed it permanently from its original context. The record was compiled by archaeologist Geraldine Stout and uploaded to the survey database in April 2013.

For anyone wishing to see the stone, the National Museum of Ireland is the place to look, though locating a specific acquisitions-list item within a large institutional collection requires some patience. It is worth contacting the museum directly before visiting, as not all collected pieces are on permanent public display. The Mullaghmore townland in Sligo remains accessible for those interested in the original landscape, and the SMR reference SL002-024 can be used to locate the recorded site through the Historic Environment Viewer, the publicly accessible mapping tool maintained by the National Monuments Service. The absence of the stone from its original location is itself a kind of historical document, a reminder of how readily portable objects were gathered into institutions during the twentieth century, often with the best archival intentions.