Original 1st printing 14&1/8 x 17&3/4" concert poster for Big Brother & the Holding Company (featuring Janis Joplin) appearing alongside Lee Michaels and the Oxford Circle at the Avalon Ballroom in San Francisco, CA on 12/9-10/1966. Art by (and SIGNED in black pen by) Victor Moscoso, image is # 38 in the Family Dog/Avalon series. Medium-thick flat vellum stock poster has been professionally restored to excellent (B+) condition; the top left corner area has had a small paper repair and a bit of in-painting around the "Br" of "Brother" and it has been washed to remove surface dirt, leaving a slight warp/wave to the paper, but overall it looks QUITE sharp. EXTRA-BRIGHT colors on this one, not to mention the HUGE Moscoso signature (see photo). Classic.