Original 1st printing 14&1/4 x 20&1/4" concert poster for Sandy Bull appearing with the Congress of Wonders, the Hobbits and Bill Ham's Light Sound Dimension (L.S.D.) at the Western Front in San Francisco, CA from 7/7-8/1967. 
 
 Art by Greg Irons, medium-thin flat index stock poster is in excellent (B+) condition; there are a few tiny nip tears and a couple of thin pressure creases scattered across the top margin, along with a bit of pen/pencil scratch on the reverse side, a few VERY soft handling dings/light bends here and there and a light pin-prick stain in the lower margin area, otherwise it is a SUPERB example of this oddball mid-'67 San Francisco poster with a great Greg Irons design ("Smedly One-Man Steam Band").