Candid photos of John Lennon and Yoko Ono listening to the ground using stethoscope while exploring New York in 1971 emerge for sale for £9,000 The rare photos of ex-Beatle John Lennon and artist wife Yoko Ono set to go under the hammer at auction Black and white images include the pair posing in front of statues and holding a stethoscope to the ground They were taken by photographer Iain MacMillan who also took the image of the Beatles crossing Abbey Road