It is the kind of object whose significance is entirely out of proportion to its setting: not a museum piece behind glass, not a monument with an information board, but a lump of worked stone propped up beside a house where it was found during building work.

Ogham is an early medieval Irish script in which letters are represented by groups of notches and scores cut along the edge, or arris, of a standing stone. Most ogham inscriptions record personal names, often in a formulaic pattern identifying a person and their lineage. The Knockagarrane stone was uncovered in the late 1970s by Maurice Foley while digging the foundations of a house, which places its rediscovery firmly in the recent past even if the carving itself is far older. The inscription is fragmentary and resists easy reading. What can be made out appears to run something like ...NA?R?... SEGGILLO?N, though that reconstruction comes with considerable uncertainty at almost every stage. The left-hand angle of the stone is illegible. The letter after the initial N may simply be damage rather than a carved character. Three of the scores belonging to the following R are damaged, and there are likely one or two letters missing between the R and the S. A spall, meaning a piece broken away from the surface, at the bottom of the stone may have removed a final A. A second spall on the arris near the second L has taken with it whatever vowel notches were once present there; the spacing suggests two vowels, possibly three. The stone sits roughly seventy metres north of a souterrain, an underground stone-lined passage of early medieval date, which hints that this corner of Kerry was once a more densely occupied landscape than the present field boundaries suggest.

The stone remains on private property, leaning where it was placed after its discovery. For those with an interest in ogham epigraphy, the inscription is a reminder that many such stones survive not in formal heritage settings but in the practical, makeshift arrangements of everyday life, their texts still being slowly argued over by specialists.