Original 1st printing, 4 & 5/ x 7 & 1/8" concert postcard for Albert King, Ten Years After, Loading Zone, Rain, Canned Heat and Dan Hicks and His Hot Licks, at the Fillmore Auditorium in San Francisco, CA on 6/25-30/1968. 
 
Art by Lee Conklin, image is #126 in the Bill Graham/Fillmore series. It is a type B postcard with a schedule back.
 
The postcard is in excellent condition.  Just a tiny smudge on the back, doesn't show through.