It is not large, tapering from 64 centimetres wide at the top to 50 centimetres at the base, and lichen has crept across its surface over the years. What makes it worth pausing over is the density of craft and intention packed into that modest rectangle: an incised seven-armed interlaced cross-head with fleur-de-lys terminals, a circle at the centre, an oval knob beneath the cross-head, a cross-shaft resting on a stepped base with the Christogram IHS carved into it, and a border of raised Black Letter script, the formal Gothic lettering common to late medieval monumental inscriptions, running around three sides of the stone.

The inscription is in Latin and names the person commemorated with some precision. Transcribed by the historian William Carrigan in 1905, it reads: "Here lies Sir William Kywe, formerly vicar of Callan, who died Oct. 3rd. 1466. On whose soul may God have mercy." The title "Sir" here is a conventional rendering of Dominus, a Latin honorific applied to clergy rather than knights. Carrigan noted something quietly telling about the stone itself: the vicar's Christian name was so poorly cut by the original mason that only the first letter was legible. A later hand, working sometime in the sixteenth century, came back and added a corrected version underneath. It is a small, practical intervention, the kind of anonymous repair that rarely makes it into formal histories, but it suggests that someone, decades after Kywe's death, still cared enough about the legibility of his memorial to put it right.