Pearl Jam guitarist Stone Gossard is auctioning off his electric mandolin to benefit the Seattle Goodwill.  The instrument has a few smalls cracks, some wiring issues and apparently doesn't work when hooked up to an amp.  In spite of all this, the listing describes it as "a museum quality piece of rock 'n' roll history."  Fans can bid on Gossard’s mandolin on eBay.com from now until the auction ends on Thursday at 3:31 p.m. PT.

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