Casgliadau Arlein

The faces of the shaft are framed with a plain rounded moulding. On the front of the shaft there is a wreath, on the left side a jug, and on the right part of what is probably a trulleus. Above the shaft is a moulded capital, which had been crowned by narrow bolsters. The two vessels represent the standard hand-washing set necessary after the act of sacrifice, while the wreath is a symbol of victory over the powers of evil, and consequently of immortality. It has been suggested that this altar may originally have stood in the Mithraeum, to the east of the fort, which is situated only a very short distance from the church where it came in light.

The lower portion of the altar is missing, and the back of the shaft has been completely broken away. The mouldings of the capital on the right-hand side have been removed, and the top of the stone has also been greatly damaged. There is no indication of a focus, and only part of one narrow bolster on the left-hand side survives. The stone is badly chipped and weathered.