40004835, Marlborough, 566, Three-quarter head of Herakles? with a long central forelock., 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), 42.1084, Cameo, Garnet, 1st/2nd cent. AD.

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