Original 1st printing 8&1/2 x 11" concert flyer for the Jim Kweskin Jug Band (with Maria Muldaur) appearing with Big Brother & the Holding Company (featuring Janis Joplin) and Electric Trainat 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. (*OHB-B in the Eric King guide)
 
 Thin flat stock flyer is in near mint (A-) condition; just a few ULTRA-tiny handling dings and a couple of tiny pin-prick age/ink spots scattered around the outer margin area, otherwise it is a VERY sharp/clean example of this always-popular late-'66 Mouse/Kelley Avalon flyer.