40001978, Poniatowski, 1839-1178, PATROCLUS AND HECTOR DISPUTING THE BODY OF CEBRIONES, DAMAS, Damas, Unknown, Mr. Phillips, Auction Offices, 73 New Bond Street, London, Northwick, Worcestershire, Daktyliothek Poniatowski 1832, Antikensammlung Berlin, Christie's, London, Catalogue des pierres gravées antiques de S.A. le Prince Stanislas Poniatowski ([1830?]-1833), 4 August 1859, lot 675, Amethyst