Origina 5 x14&5/8" concert double postcard for Big Brother & The Holding Company, Iron Butterfly, Booker T. & The MG's, The Staples Singers, Roland Kirk, and Love at the Fillmore Auditorium in San Francisco, CA on 4/11-13 and 4/18-20/1968.
 
Art by Patrick Lofthouse and Thomas Weir. image is #115 and 116 in the Bill Graham/Fillmore series. 
 
Postcard is in decent condition.  The front just has a smudge or two, otherwise fine.  The back has tape pulls and a few en marks (see photo.)  The postcard was addresed and mailed.