A Neoclassical sard intaglio brooch

A Neoclassical sard intaglio brooch, the oval-shaped sard intaglio depicting 'Hercules rescuing Hesione from the monster', with a pseudo-signature (pretending to be the work of the ancient engraver Apollonides), in ornate gold frame, 6.7cm wide

Provenance: From the collection of Prince Stanislas Poniatowski (1754-1833); supposedly offered for auction at Christie's (london), 29 April - 21 May 1839, lot 489, withdrawn from the sale, purchased by John Tyrrell (35 Craven Street - London).

Published: James Prendeville, 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, London 1841 no. 386.

Catalogue des Pierres Gravées antiques de S.A. le Prince Stanislas Poniatowski, Florence 1830-1832, class II, nr.489