Satin-finish 12 x 18 photo of a promotional poster for the Woodstock Festival documentary, signed in black and blue felt tip by 28 performers. Signers are: Joe Cocker; Arlo Guthrie; Richie Havens; John Sebastian; Leslie West of Mountain; Jack Casady and Marty Balin of Jefferson Airplane; Country Joe McDonald; Doug Cosmo Clifford and Stu Cook of Creedance Clearwater Revival; Gregg Rolie of Santana; Tom Constanten of Grateful Dead; Larry Graham, Jerry Martini, Rose Stone and Cynthia Robinson of Sly & the Family Stone; Fito de la Parra, Harvey Mandel and Larry The Mole Taylor of Canned Heat; Ric Lee, Leo Lyons and Chick Churchill of Ten Years After; Jacko, Bowzer and Donny York of Sha Na Na; Tommy Shannon of the Johnny Winter Band; David Sanborn of Butterfield Blues Band; and Jim Fielder of Blood Sweat & Tears. In fine condition. RR Auction COA.