40000328, Poniatowski, T297, OCYROE, THE DAUGHTER OF THE CENTAUR CHIRON, CHANGED TO A MARE [CHIRON, WITH THE INFANT AESCULAPIUS IN HIS ARMS, INVOKING THE VENGEANCE OF JUPITER UPON HER], ALFEOS, Alpheos, Catalogue des pierres gravées antiques de S.A. le Prince Stanislas Poniatowski ([1830?]-1833), 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, II.131, Sardonyx