Curator Jackie Keily holds a mystery object with tapering shank believed to be an aigrette encrusted with diamonds and sapphires, part of the Cheapside hoard at the Museum of London June 4, 2013. The Cheapside Hoard is a cache of Elizabethan jewels, stashed away in a cellar and discovered in 1912 during building works in the City of London. The exhibition "The Cheapside hoard : London's Lost Jewels" examines the world's largest found collection of Elizabethan and early Stuart jewellery at the Museum of London and opens in October 2013. REUTERS/Luke MacGregor (BRITAIN - Tags: ENTERTAINMENT SOCIETY TRAVEL)