psychedelic-sixties: Jefferson Airplane & Muddy Waters September 23, 29-30 October 1 of 1966
psychedelic-sixties: Jefferson Airplane & Muddy Waters September 23, 29-30 October 1 of 1966 at Winterland & Butterfield Blues Band, September 25, October 2, 1966 at Fillmore Auditorium (San Francisco, CA) Art by Wes Wilson. -- source link