Original 1st printing 14x21 &1/4" concert poster for Butterfield Blues Band, Incredible String Band, Buddy Miles, Ravi Shankar and Quartermass performing at the Fillmore West in San Francisco, Ca on 12/14-16/1970.
 
Art by Norman Orr.  Image is #261 in the Bill Graham Fillmore series.
 
The poster is in excellent/near mint condition.  Just a tiny bit of edgewear.