The Gibson SG used by Beatles legends George Harrison and John Lennon will be put on auction at Christie's on Dec. 17 in New York. According to the BBC, the SG is expected to fetch up to 270,000 pounds at the auction. Altogether there are 70 lots of Beatles memorabilia in the sale, including a union agreement signed by the Beatles before their legendary performance on the Ed Sullivan show.

Links:

Christie's auction

Beatles Guitar To Go Under The Hammer