A 19th century bracelet mounted with nine oval hardstone intaglios in gold rub-over mounts and gold links, 19cm long The intaglios, from left to right: 1. A 19th century carved sardonyx intaglio in the 1st century BC style, depicting a standing man before a tree and holding a wreath, engraved dot border, 1.4cm high 2. A 19th century carved sardonyx intaglio in the 1st century BC style, depicting a philosopher seated on slat-backed chair, leaning forward and intently reading, 1.5cm high 3. A 19th century finely carved carnelian intaglio, in the 1st century AD style, depicting Athena Lemnia, 1.8cm high 4. A 19th century finely carved light and dark sardonyx intaglio in the Hellenistic style, depicting Herakles Farnese, traditionally carved and leaning on his club draped with the Nemean Lion, engraved to the left with the pseudo-signature 'AYLOY' in Greek letters for the 1st century BC engraver Aulos, 2.3cm high 5. An 18th century very finely carved sardonyx intaglio by Carlo Costanzi, depicting a portrait bust of a young man with tied flowing curling hair, signed to the left 'Cavalier Carlo Costanzi' and the initials F R to the base, possibly those of the sitter, 2.8cm high Carlo Costanzi (1705 - 1781) was a gem engraver working out of Naples and later Rome. 6. A late 18th or early 19th century finely caved sardonyx intaglio by Giovanni or Luigi Pichler, depicting the bust of a youthful man, his flowing curling hair tied with a fillet, signed lower left in Greek 'Pichler', 2.6cm high Giovanni Pichler (1734 - 1791) moved to Rome from Naples and received notable commissions from an early age. His engraved gems were often mistaken as from Classical antiquity. Luigi Pichler (1773-1854) received his apprenticeship and education from his relation Giovanni as Luigi's own father died when he was young. They both, in addition to other members of their family, signed their works in various Greek and Roman ways. 7. A late 18th or early 19th century finely carved sardonyx intaglio by Pichler, probably Luigi, depicting a maenad walking to the right, wearing flowing and transparent robes, holding a thyrsus in her left hand and a cup in the other which has a butterfly drinking from it and representing psyche as the soul, signed lower right in Greek 'PIX', 2.5cm high 8. A 19th century carved carnelian intaglio depicting a traditional Dionysiac procession, after the so-called 'Seal of Michelangelo', the original of which was thought to have been carved by Pier Maria da Pescia after Michelangelo, 1.7cm wide 9. A 19th century dark sardonyx intaglio in the 1st century BC style, depicting a bearded man kneeling before a Krater, 1.4cm wide