AOL music is hosting a stream of the Castle Music release of legendary 1977 Sex Pistols bootleg Spunk. Castle Music is an imprint of Sanctuary Music responsible for a number of notable classic punk releases, including box sets from Discharge and GBH.

Spunk was a set of demos recorded by Dave Goodman that captures the band over a year before the release of their groundbreaking debut Never Mind the Bollocks. It features prototypical versions songs from that full length, many bearing different titles. The material from those sessions has shown up on nearly every of the numerous Pistols bootlegs since.

You can check out the stream here.

The reissue arrives in North America on August 15th and was released last month in Europe. The CD will include the bonus tracks while the vinyl version is limited to 1000 individually numbered copies.