Kurt Cobain memorabilia goes up for auction pretty regularly. A couple years ago, his Unplugged guitar became the most expensive guitar ever sold at $6 million; last year, his “Smells Like Teen Spirit” Fender Mustang wasn’t far behind at $4.5 million. Another round of Cobain memorabilia is hitting the auction block through Julien’s Auctions next week, and among the items up for sale is a pack of American Spirit cigarettes that once belonged to the Nirvana frontman.