Original 1st printing 14 x 21&1/8" concert poster for Country Joe & the Fish appearing with the Incredible String Band and Albert Collins at the Fillmore Auditorium in San Francisco, CA from 5/16-18/1968.

 

 Art by Wilfred Weisser, image is # 120 in the Bill Graham/Fillmore series.

 

 Medium-thick flat index stock poster is in near mint (A- to A-/B+) condition; aside from a tiny corner-tip bump or two and a couple of nearly-invisible handling dings/fingerprints hiding within the image area, it is an EXTREMELY clean/crisp example of this weird mid-1968 Fillmore image with a very trippy nautical-inspired design.