40004668, Marlborough, 315, Facing head of Eros, with plaited hair., Thyssen-Bornemisza Collection, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 315, Cameo, Bluish grey chalcedony, 1st cent. AD.