Oxford historian Dr Janina Ramirez sets Shaun Greenhalgh, once a prolific forger, the challenge of making a jewelled eagle brooch of the kind worn by Visigoth chieftains in the Dark Ages.

Dr Janina Ramirez sets ex-forger Shaun Greenhalgh the challenge of making an alabaster carving of the kind mass-produced in Catholic England in the centuries before the Reformation.

Dr Janina Ramirez sets ex-forger Shaun Greenhalgh the almost impossible task of carving an Islamic bottle out of rock crystal in the style of the 10th-century Egyptian Fatimids.