Glossy 10 x 8 photo of stage set-up in progress before a huge crowd, signed in felt tip by 11 performers. Signers are: Steven Stills, Grace Slick, Wavy Gravy, Melanie (adding a flower), John Sebastian, Paul Kantner, Marty Balin, Johnny Winter, Juma Sultan (adding “Purple haze all in my brain”), Steve Knight, and Tom Constanten. In fine condition. Pre-certified Roger Epperson/REAL and RR Auction COA.
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