A Roman marble bust of Gaius Caesar achieved a 149% increase on its estimate when it sold at Bonhams' Antiquities sale in London earlier today.
The bust, produced in AD 5, made £374,500 ($604,780) against a valuation of £120,000-150,000 ($192,139-240,187).
Gaius (20 BC - AD 4), who was the adopted son of Emperor Augustus (63 BC - AD 14), was wounded in the battle of Artagira in AD 3, leading to his death the following year aged just 23.
During his short life, Gaius took on the role of youth leader of the senate in 6 BC and was made commander of the East in 1 BC. Following successes in battle, he was made consul in AD 1.
A Greek marble head of a goddess dating to the Hellenistic period (3rd to 2nd century BC) achieved £62,500 ($100,931).
The carving features the oval face and lifelike rendering of hair that characterises the sculptures of the period.
A Canaanite silver and gold figure circa 2,000-1,500 BC also performed well, making £47,500 ($76,707).
The figure features a heavily stylised, elongated body, highlighted with gold, with one fist pierced to allow a weapon to be placed inside.
A Roman marbled glass snake realised £37,500 ($60,558).
Cast in translucent and marbled purple, white and amber glass, it would most probably have been used as an inlay in an item of furniture or a mosaic floor.
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