Description: Transverse oval, flat. Green jasper with red spots (heliotrope). Chipped and broken on the edge. Previously part of the Guardabassi Collection.
A: Mithras slaying a bull with a knife in the left hand, while grabbing the horn of the animal with the right hand. The figure is wearing a tunic, a mantle and a Phrygian cap. A dog approaches the wound of the bull. Below: a scorpion and a snake. Above: most probably a bird (only the beak is visible due to the damage). In the free field: six stars.
SGGII, 108, Pe 13.
Vitellozzi 2010b, no. 281