Nirvana fans can pick up the new Cobain Jag-Stang
The caricature was hand-drawn by the late Nirvana frontman in 1992
The doodle, made on stationery of the recording studio TNT Music Centre, has an estimated worth of over $10,000
His friend Tessa Osbourne safeguarded the locks she cut back in 1989
The file includes two letters from individuals who asked the bureau to investigate the 1994 death
The locks go under the hammer at today's 'Amazing Music Auction'
The collection includes some never-before-seen pictures of the Nirvana frontman
St Vincent, Ringo Starr and more join the Foo Fighters frontman to reminisce
"There is not a single day where we don’t think about you and we dearly miss you"
The programme has created "new" tracks by other stars who died at 27 for the project