40000201, Poniatowski, T170, DRYOPE HOLDING APOLLO TRANSFORMED TO A TORTOISE [ANOTHER NYMPH FLYING FROM HER] CORRIGENDA: COILED SERPENT, PURGOTELES, Pyrgoteles, 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), 170, Cornelian

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