Original 2nd printing 20 x 14" concert poster for the 2nd Annual Tribal Stomp, featuring Quicksilver Messenger Service appearing with Big Brother & the Holding Company (featuring Janis Joplin) and Oxford Circle at the Avalon Ballroom in San Francisco, CA from 2/17-18/1967.
 
 Art by Stanley Mouse and Alton Kelley with a photo by Bob Seidemann, image is # 48 in the Family Dog/Avalon series.
 
The poster is in excellent/nm condition.  Just light handling wear.