40002320, Poniatowski, 1839-1827, Portrait (profile left): CICERO [MARCUS TULLIUS], SKOPAS, Skopas, Christie's, London, Scarisbrick, (Charles), Esq., Daktyliothek Poniatowski 1832, Antikensammlung Berlin, Christie's, London, Catalogue des pierres gravées antiques de S.A. le Prince Stanislas Poniatowski ([1830?]-1833), May 16, 1861, lot 200, Cornelian