Original 1st printing, 14 x 22" concert poster for Electric Flag, Blue Cheer, Buddy Guy, Ike & Tina Turner and Freddie King at the Fillmore Auditorium in San Francisco, CA on 4/4/1968. 
 
Art by Lee Conkiln, image is #128 in the Bill Graham/Fillmore series. 
 
The poster is in near mint condition.