Original 1st printing 13&3/8 x 22&1/2" concert poster for Otis Rush & His Chicago Blues Band appearing with the Mothers of Invention (featuring Frank Zappa) and Morning Glory at the Fillmore Auditorium in San Francisco, CA from 3/3-5/1967.
Art by Wes Wilson, image is # 53 in the Bill Graham/Fillmore series.
Medium flat vellum stock poster is in good to very good (B to B/B+) condition; there are a series of semi-flattened thin bends/creases running up and down the left/right margins, along with a pair of decent-sized diagonal/vertical bends in the upper right margin area, a few handling dings/soft creases scattered around the outer image area, a tiny corner-tip split in the bottom right corner, a couple of ultra-tiny pin-prick spots and a thin scrape/scratch between the face and the "R" of "Rush", otherwise fine.
Most of the conditional issues are fairly well camouflaged on this example, it actually looks pretty decent up close.