Original 1st (only) printing concert handbill flyer for The Marin Youth for Action Benefit Concert featuring Big Brother and the Holding Company, Quicksilver Messenger Service, Sparrow and the Charlatans e on 4/8/1967 at the Mt. Tamalpias outdoor theater in Marin County, CA.
 Art by Gut.
 The card is in very good vintage condition. there is a small tear in the corner, a tackhole, a small stain on the top, and two corner bends.