40004755, Marlborough, 638, Dancing maenad with head thrown back, wearing a peplos and cloak over arms, flowing dress. 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. 638, Amethyst

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