Sotheby's

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This undated photo provided by Sotheby's shows a detail of a rare 1719 Stradivarius viola that is expected to sell for more than $45 million in a private sale by Sotheby's. Only 10 Stradivari violas are known to have survived. This one, called "the Macdonald," was acquired in 1964 by the late Peter Schidlof of the Amadeus Quartet. His estate is now selling it. (AP Photo/Sotheby's)

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This undated photo provided by Sotheby's shows a rare 1719 Stradivarius viola that is expected to sell for more than $45 million in a private sale by Sotheby's. Only 10 Stradivari violas are known to have survived. This one, called "the Macdonald," was acquired in 1964 by the late Peter Schidlof of the Amadeus Quartet. His estate is now selling it. (AP Photo/Sotheby's)

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FILE - This file image released by Sotheby's shows a page from a handwritten manuscript of Bruce Springsteen's 1975 hit "Born to Run." The handwritten, working lyric sheet for Bruce Springsteen's 1975 hit "Born to Run" could sell for as much as $100,000 on Thursday Dec. 5, 2013, Sotheby's has predicted. (AP Photo/Sotheby's, File)