Glossy 10 x 8 Warner Bros. promotional photo for the Woodstock film, signed in blue felt tip by 14 performers: Grace Slick (black felt tip), Johnny Winter, John Sebastian, Marty Balin, Country Joe McDonald, Leslie West, Wavy Gravy, Donny York, Steve Knight, Juma Sultan, Jocko, Jerry Martini, Cynthia Robinson, and Tom Constanten. In fine condition, with some scattered light creases and surface impressions. RR Auction COA.
