Original 1st printing 14 x 21" concert poster for Iron Butterfly appearing with Sea Train and the Sir Douglas Quintet (+2) at the Fillmore West in San Francisco, CA from 10/17-19/1968. 

 Art by Rick Griffin and Victor Moscoso, image is # 141 in the Bill Graham/Fillmore series.

 Medium-thick flat index stock poster is in near mint to excellent (A-/B+ to B+) condition; really nothing more than a loose soft fingerprint or two hiding within the image area and a nearly-invisible thin vertical hairline crease running along the right margin, otherwise it is a nearly-perfect example of this iconic late-1968 Griffin/Moscoso collaboration.