Original 1st printing 13&3/4 x 22&3/8" concert poster for the Grateful Dead appearing with Texas folk-blues legend Sam "Lightning" Hopkins and the Loading Zone at the Fillmore Auditorium in San Francisco, CA from 10/21-22/1966, along with the Yardbirds (with Jeff Beck and Jimmy Page) appearing with Country Joe & the Fish on 10/23/1966.
Art by Wes Wilson (with a photo by Herb Greene), image is # 32 in the Bill Graham/Fillmore series (OP-2 in the Eric King guide, this is the coarse/vellum stock edition)
Medium thick flat vellum stock poster is in fantastic near mint (A-) condition; aside from a couple of ultra-tiny edge/corner bends and the slightest whisper of surface wear (a couple of nearly-invisible pin-prick age spots), it is an absolutely unbeatable example of the somewhat hard-to-find vellum stock version of the BG 32.
Classic '66 Jerry Garcia image on this one!