40000259, Poniatowski, T228, MERCURY SEATED IN A CAR DRAWN BY RAMS [HOLDING IN HIS HAND THE SCEPTRE OF NEPTUNE, THE ARROWS OF APOLLO, AND THE CESTUS OF VENUS ], GNAIOS, Gnaios, Bern, Kunstmuseum; Merz Collection, 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), DL649, Cornelian