A cast member of the ABBA inspired musical "Bjorn Again" plays a grand piano made by Georg Bolin and used by the Swedish pop group ABBA to recorded many of their hit songs, at Sotheby's auction house in London, Britain, August 27, 2015. The piano is expected to earn $927,000-1.24 million (600,000-800,000 British pounds) when it is auctioned later this month in London on September 29. REUTERS/Suzanne Plunkett