Sandstone slab lying against inner face of southern wall at the east end of Killodiernan Romanesque Church ruins (TN009-040001-) in North Tipperary. The stone has a poorly executed pocked carving consisting of three poorly drawn circles the centre of which are bisected by a poorly excecuted incised horizontal line. The purpose of this stone is unknown and may have been a trial piece to teach how to carve onto a stone surface. The pock marks of the tool used to carve the circles and the line are clearly visible on the 3D model. The name Killodiernan is translated as the church of the O'Tiernans and the Cill placename may suggest an early medieval date for the church site. For more information on the stone slab, visit: https://maps.archaeology.ie/HistoricEnvironment/?SMRS=TN009-040005-