Original 4&1/4 x 6 & 11/16" concert postcard for Ravi Shankar and Alla Rakha at the Fillmore East in New York, NY on 5/24/1968. The postcard has a schedule backing.  It is a "Type B" postcard.
 
Art by David Byrd.
 
Postcard is in excellent condition.  Just some ghosting from the printing process.