Original 1st printing 14&1/8 x 19&3/4" concert poster 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 was canceled).

 

 Art by (and SIGNED in pencil by BOTH) Stanley Mouse and Alton Kelley, image is # 27 in the Family Dog/Avalon series.

 

 Medium-thick flat vellum stock poster is in SPARKLING mint/near mint to near mint (A/A- to A-) condition; an absolutely GORGEOUS DOUBLE-SIGNED example of this classic Mouse/Kelley Family Dog image from 1966.