40005159, Marlborough, 232, Frontal head wearing a coronet with fleurs-de-lis. Story-Maskelyne - probably the signet of Charles V of France described in the inventory of his jewels (1379), and showing his head., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), M554-1910, Spinel ruby