Excellent color 28 x 21.25 poster for a series of concerts presented by Bill Graham at San Francisco's Fillmore West in July and August of 1970. Performers and concert dates include: Ten Years After, Cactus, and Toe Fat on July 28, 29, and 30; It's a Beautiful Day, Elvin Bishop, and Boz Scaggs on July 31 and August 1 and 2; Procol Harum, Leon Russell, and Blodwyn Pig on August 3, 4, and 5; and Fleetwood Mac, Buddy Miles, Albert Collins on August 6, 7, 8, and 9. Lower border bears ticket information and notes that the light displays are to be organized by Lights by Anathema and The San Francisco Light Works. In fine condition, with some creasing to the edges.