Sold for $3.6m (£2.3m) in 2010, the ‘Londonderry Stradivarius’ was once the world’s most valuable musical instrument. New York-based Anne Akiko Meyers plays it in concert halls across the world.
But a Derry-based author is trying to crack the riddle of how siblings from the city came to buy the 17th century violin.
William and Muriel Anderson held on to the instrument for three decades, storing it under a bed in their terraced house in the city for security.