A beautiful Mint Condition concert poster advertising 1966 shows at San Francisco’s Avalon Ballroom featuring Janis Joplin with Big Brother and the Holding Company and the Sir Douglas Quintet.  This psychedelic classic, with artwork by Stanley Mouse and Alton Kelley, is FD-30 in the Family Dog concert poster series ( often referred to as “Gloria Swanson”, for the photograph of the 1930’s screen star pictured in the center.  17 7/32″ x 20″.  A fresh and unfaded example you’ll never need to upgrade.