Super Ball KMPX First Birthday Benefit at Winterland - 1968 (Poster)

Vintage poster promoting a show with Grateful Dead, Youngbloods, Moby Grape, It's A Beautiful Day, Electric Flag and Mother Earth at Winterland. KMPX First Birthday Benefit show. Designed by The San Andreas Fault, photo by Tom Weir. 

Measures ~ 14x20.25 inches. Notable damage. See photos.