The 12 string Fender XII that Bob Dylan used during sessions that produced his landmark 1966 double album Blonde on Blonde is heading to auction. Heritage will offer it as a featured instrument in its March 16th Entertainment Memorabilia Signature Auction. Also on the block is one of only six known copies of the Sgt. Pepper album to have been autographed by all of the members of the Beatles and a velvet robe that belonged to Jimi Hendrix.