40004614, Marlborough, 320, Bust of Athena (?) wearing a corselet; a mask on her helmet with a feather crest; a grotesque head as epaulette., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 320, Cameo, Renaissance

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