Original 1st printing 14 x 19&3/4" concert poster for Junior Wells and His Chicago Blues Band appearing with Steve Mann at the Matrix in San Francisco, CA from 12/27/1966-1/8/1967.

 Art by Victor Moscoso, image is # 1 in the Neon Rose series (NR-1-OP-1).

 Medium flat index poster is in very good to excellent (B/B+ to B+) condition; aside from a soft diagonal bend in the upper right corner, a few tiny stress/handling dings hiding within the image area, a pair of edge dings along the right margin and a bit of uneven discoloration/subtle smudging along the bottom border area (around "Matrix"), otherwise fine. 

 FANTASTIC-looking example of this early Neon Rose poster.