George and John’s 1964 Gibson SG: $570,000 This guitar was used by the Beatles between 1966 and 1969. George Harrison used it when recording and touring for the album “Revolver”. John Lennon used the same guitar during the sessions of “the White” album. It was given to George Peter Ham, from the rock band Badfinger. After his death it was undiscovered until 2002. It was sold to an anonymous bidder at the auction in 2004 for a startling price of $570,000.