40004888, Marlborough, 356, Portrait (profile right) Plato (?), (profile left) Socrates (?) Heads of two bearded men. The larger, wearing a loose fillet, is Dionysos, the other Silenos, with a pointed ear. Formerly 'Plato and Socrates'., Walters Art Museum, Baltimore, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), 42.1182, Cornelian, 1st cent. BC/AD?

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