40004796, Marlborough, 130, A bearded radiate Helios drives a quadriga. Rocks behind him. Short ground line., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 130, Cornelian