18ct gold and coin pendant necklace, Bulgari, circa 1980 centring an ancient coin depicting a man in profile, bezel-set in a geometric motif surround surmounted with a buff top ruby, completed by a flattened curb link chain, length approximately 430 mm, the reverse of the pendant inscribed Roma-Hadrianvs Avg 117-138, signed Bulgari, Italian maker's mark. Literature Amanda Triossi, between Eternity and History, Bulgari, from 1884 to 2009, 125 Years of Italian Jewels, Skira, Milan, 2009, pp. 167-175 (illustrated, another example).