Original 1st printing 8&1/2 x 11" concert flyer for Chicago blues legend Howlin' Wolf appearing with Big Brother & the Holding Company (featuring Janis Joplin) at the Avalon Ballroom in San Francisco, CA on 9/23-24/1966 (*show canceled).
Art by Stanley Mouse & Alton Kelley, image is # 27 in the Family Dog/Avalon series.
Thin flat stock flyer is in very good to excellent (B/B+ to B+) condition; a touch of light toning, a hint of handling, a couple of tiny pin holes in the top corners and in the top center margin, a pair of 1/2" diagonal tape marks/pulls in the bottom left/right corner tips and an ultra-thin soft vertical drip stain along the right margin, otherwise fine.
A fine-looking example of this somewhat hard-to-find mid-'66 Family Dog flyer. The poster seems to turn up fairly frequently- the flyer, not so much.