The guitar Kurt Cobain played in the “Smells Like Teen Spirit” video is going up for sale.

Kurt Cobain was a fan of the Fender Mustang, a solid body guitar that began production in 1964 as a beginner/student model (specifically, a redesign of the Musicmaster). It was shorter than the Stratocaster by about an inch-and-a-half, making it somewhat easier to play for new guitarists. After it was canceled in 1982, it began to take on a weird cult status, especially with alt-rock bands.

Kurt Cobain became a big fan. The Mustang turned into his favourite guitar. He owned two of them.

That’s a left-handed 1969 Mustang in this video finished in Lake Placid Blue.

That exact guitar (including the original strap and case) will go up for auction next month through Julien’s with a (probably stupidly low) guide price of between $US600,000 and $US$800,000. The seller–listed as “Cobain’s family”–says that a chunk of the proceeds will be donated to a mental health charity called Kicking The Stigma.