This thin rectangular slab was found during excavations at Ronaldsway (IOMHER 0133.00) in 1935. The slab is decorated with a narrow beaded border, in the centre of which is an equal-armed compass-drawn 'cross patte' within a double circular frame. Three 'tau' crosses are located in the bottom left hand corner. It probably served as an altar front, before being re-used in a lintel grave.