40001561, Poniatowski, 1839-428, IOLE, HEAD, WITH THE LION'S SKIN, ONESOU, Onesos, Private Collection, Christie's, London, A. Pash and Sons of Mayfair, London, Market, Breadalbane, (Marquess), Cades, T.: Impronte dell' Instituto, Daktyliothek Poniatowski 1832, Antikensammlung Berlin, Catalogue des pierres gravées antiques de S.A. le Prince Stanislas Poniatowski ([1830?]-1833), Christie's, London, 15 July 1886, Amethyst