Original 7&1/2 x 9&3/8" concert double postcard for The Who, James Cotton, Magic Sam, Creedence Clearwater Revival, Albert Collins, Grateful Dead, Kaleidoscope, Quicksilver Messenger Service, Spooky Tooth, and Cold Blood, at the Fillmore and the Winterland Auditoriums in San Francisco, CA on 8/16-18 and 23-25/1968.
 
Art by Rick Griffin. image is #133 in the Bill Graham/Fillmore series. 
 
Postcard is in great condition.  The front and back are very clean.  It has a schedule back.