40004952, Marlborough, 577, Portrait (left): Agrippina the Elder. Copy of the seated Agrippina statue in the Villa Albani. Ground line. Signed by Pichler., Unknown, Boardman, J., Scarisbrick, D., Wagner C., Zwierlein-Diehl, E: The Marlborough Gems (2009), Story-Maskelyne, M.H.: The Marlborough Gems (1870), no. 577, Cameo

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