40000180, Poniatowski, T128, PSYCHE WITH THE CASKET OF PERFUME RECEIVED FROM PROSERPINE [TURNING AWAY HER FACE FROM THE VAPOUR], GNAIOS, Gnaios, Gasparri, C.: 'Gemme antiche in eta neoclassica' in Prospettiva 8 (1977), Metropolitan Museum of Art, New York, Richter, G.M.A.: Catalogue of Engraved Gems of the Classical Style (1920), King, C.W.: The Handbook of Engraved Gems (1866), Christie's, London, Scarisbrick, (Charles), Esq., 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), p.31, Amethyst

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