40000472, Poniatowski, T443, AUGEA AND TELEPHUS SEPERATED BY A SERPENT [ALARMED AT THE SIGHT OF THE DRAGON], PURGOTELES, Pyrgoteles, 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.342, Cornelian