Original 1st printing 14&1/8 x 19&7/8" concert poster for the Steve Miller (Blues) Band appearing with Lee Michaels and the Peanut Butter Conspiracy at the Avalon Ballroom in San Francisco, CA from 2/10-11/1967.

 Art by Victor Moscoso, image ("Sphinxdance") is # 47 in the Family Dog/Avalon series. *this is a RED/BLUE ONLY test proof/variant (no orange pass of ink) 

 Thick flat vellum stock poster is in excellent (B+) condition; really nothing more than a trace of toning along the left/right margins, a few light handling dings/pin-prick spots/tiny smudges here and there, a couple of corner-tip bumps and a couple of nearly-invisible hairline bends scattered within the image area and around the outer margin area, otherwise it is a REALLY nice-looking example of this unique Moscoso FD proof.