40004571, Marlborough, 658, Isis standing, wearing uraeus headdress, high-girt, holding staff and ankh. 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. 658, Garnet, Roman