Original 1st printing 4 x 7" concert postcard for the Yardbirds, Frost, Stuart Avery, Odds & Ends and MC5, at the Grande Ballroom, in Detroit, MI on 10/30-11/2/1968. 
 The card has a place stamp here backing and wasn't mailed.  
 
Design by Gary Grimshaw.
 
The card is in excellent/nm condition.  No obvious flaws.