Is it possible to put a price on the guitar used to record The Dark Side of the Moon? Christie’s just has. David Gilmour’s 1969 Black Fender Stratocaster is set to go under the hammer (estimate $100,000-150,000) in New York on June 20 as part of a sale of 120 of the rockstar’s guitars. With other highlights including the 1954 White Fender Stratocaster (estimate $100,000-$150,000) he played on Another Brick in the Wall and an ultra-rare Gretsch White Penguin 6134 (estimate $100,000), the collection will be on show to the public at Christie’s at the Rockefeller Center from June 14. “Guitars were made to be played,” said Gilmour when asked why he’d chosen to sell the tools of his trade. “It will be a wrench to see them go.” All proceeds will benefit David Gilmour’s charitable trust that has worked with organisations from Amnesty International to Shelter and Freedom From Torture.