Early Original Nirvana Concert Poster from Sub Pop Records, the Real Deal

It is very rare.

Rock and Roll Hall of Fame 2014: How Nirvana Made Grunge Fashion Good – The Hollywood Reporter

The Night Before Nirvana Changed Forever - The Ringer

Nirvana Albums: songs, discography, biography, and listening guide - Rate Your Music

Nirvana Tour Poster

The Seattle music scene burst onto the world stage as the 20th century ended. Despite what clueless media said, there never was one Seattle Sound. But there was a Seattle attitude. The best of our bands weren't trying to break into the corporate rock pantheon but to demolish it. The Seattle Scene was about decentralizing culture, about honest heartfelt expression. You don't have to be from NY, LA or SF to make music or art. You're the superstar, as Krist Novoselic says.

Loser: The Real Seattle Music Story: 20th Anniversary Edition [Book]

Nevermind - Wikipedia

10 under-the-radar Sub Pop records that quietly defined the US underground - The Vinyl Factory

Original Nirvana Posters

Kurt Cobain's Handwritten Lyrics, MTV VMA Among Items Up For Auction