Original  1st printing 6x9" concert postcard for The Youngbloods, It's a Beautiful Day, Initial Shock, The James Cotton Blues Band The Sir Douglas Quintet, Pulse, and Woms, at the Family Dog in San Francisco, CA on 8/29-31 and 9/6-8/1968. The card has a bulk mail stamp.  It was not mailed or folded.
 
Art by Roger Weil.
 
Postcard is in excellent condition. Just a small bit of edge and corner wear.