Glossy 10 x 8 Warner Bros. promotional photo for the film, featuring several nude attendees, signed in blue and black felt tip by 11 performers: Johnny Winter, John Sebastian, Grace Slick, Wavy Gravy, Marty Balin, Leslie West, Donny York, Jacko, Steve Knight, Juma Sultan, and Tom Constanten. Light surface loss along top, and scattered creasing, mainly to edges and corners, otherwise fine condition. RRAuction COA.