40000829, Poniatowski, T795, HEAD OF NESTOR, PERGAMOS, Pergamos, Unknown, Mr. Phillips, Auction Offices, 73 New Bond Street, London, Northwick, Worcestershire, Prendeville, J.: Explanatory catalogue of the proof-impressions of the antique gems possessed by the late Prince Poniatowski and now in the possession of John Tyrrell, Esq. (1841), Christie's, London, Catalogue des pierres gravées antiques de S.A. le Prince Stanislas Poniatowski ([1830?]-1833), 4 August 1859, lot 1322, Cornelian