Original 1st printing, 13 & 11/16 x 20 & 3/4" concert poster for The Blues Project, Mothers of Invention and The Canned Heat Blues Band at the Fillmore Auditorium in San Francisco, CA on 2/17/1967. 
 
The poster has information about another show, "Sun. Only, The All Night Flight Wheel," written in pencil on the hand in between the dates.
 
Art by Wes Wilson, image is #50 in the Bill Graham/Fillmore series. 
 
The poster is in used vintage condition.  There are multiple tackholes throughout, edge tears and corner tears, corner bends and a black ink smudge on the bottom.  This poster was definitely put up and displayed.