This concert was a benefit for the Haight Ashbury Free Clinic and The Athaneum Arts Foundation It took place 8-30 through 9/2 1968. The bands that played are not listed on the poster, only on the handbills and included (to name a few): The Grateful Dead, Big Brother, Quicksilver, Santana, Steve Miller, Kaleidoscope, and the Sons of Champlin, to name only a few. Printed on silver foil paper.