Original 7&1/2 x 9&5/8" concert double postcard for Miles Davis, Elvin Bishop Group, Mandrill, Humble Pie, Swamp Dogg, and Shanti at the Fillmore Auditorium in San Francisco, CA on 5/6-9 and 13-18/1971.
 
Art by David Singer. image is #279 and 280 in the Bill Graham/Fillmore series. 
 
Postcard is in great condition.  The front and back are very clean. There is a little bit of handling. The postcard was addresed and mailed.  It has a schedule back.