Original 1st printing 14&1/8 x 20" concert poster for the Jim Kweskin Jug Band (with Maria Muldaur) appearing with Big Brother & the Holding Company (featuring Janis Joplin) and Electric Train at the Avalon Ballroom in San Francisco, CA from 10/7-8/1966.
 
 Art by Stanley Mouse and Alton Kelley, image ("Girl With Green Hair") is # 29 in the Family Dog/Avalon series. (*OP-1 in the Eric King guide)
 
 Medium-thick flat vellum stock poster is in used (B-) condition; there is an approximately 1" chunk out of the top left corner, along with light to moderate degree of toning, tack/pin holes in all of the remaining corners (lower right corner tip is also quite soft/worn and bent), a couple of semi-soft horizontal roll bends, a few light stains along the right margin, tape marks and a tiny drip stain on the reverse side... definitely a well-traveled survivor of the '60's, but still an authentic original example. Good restoration candidate.