Original 1st printing 14 x 23&3/4" concert poster for Howlin' Wolf appearing with Big Brother & the Holding Company (featuring Janis Joplin) and the Harbinger Complex at the Fillmore Auditorium in San Francisco, CA from 4/21-23/1967.
 
 Art by Wes Wilson, image is # 60 in the Bill Graham/Fillmore series.
 
 The poster is in very good condition.  There is a corner bend and a smudge on the top, and a corner tear and a small edge crease on the bottom.