Original 1st printing 13 x 22&1/8" concert poster for Spirit with the Sir Douglas Quintet and Notes From the Underground at the Avalon Ballroom in San Francisco, CA on 8/23-25/1968.

Art by Stanley Mouse with a photo by Arnold Zenthe, image is #134 in the Family Dog/Avalon series. Medium-thick flat stock poster is in very good (B/B+) condition; slight toning, light handling/surface wear (a few scattered tiny stains in the ticket strip area) and a trace of edge wear, otherwise fine. Spooky-looking image on this one!