A Roman marble portrait head of the Greek philosopher Antisthenes was sold at the Chicago salesroom Hindman Auctions last week despite claims by a leading forensic archaeologist that the valuable artifact may have links to a disgraced antiquities dealer.
The sale, which made $100,000, had been opposed by Christos Tsirogiannis, head of the Unesco working group on illicit antiquities trafficking, at Ionian University in Greece, who said the head may have been linked to Robin Symes, a dealer who has been linked to looted antiquities.