Original 1st printing 14&1/4 x 22" concert poster for psychedelic rock & roll icons the 13th Floor Elevators (featuring Roky Erickson) appearing with the Conqueroo at the City Coliseum in Austin, TX on 2/10/1967.

 Art by Mark Weakley (inspired by Wes Wilson, see BG 41 for reference), medium-thick flat index stock poster is in GORGEOUS near mint (A- to A-/B+) condition; just one or two tiny edge/corner dings and a whisper of toning/pin-prick age spotting running along the bottom margin, otherwise it is an absolutely AWESOME-looking specimen of this VERY early pre-Vulcan Gas psychedelic poster from Austin.

 This was the third concert produced by the Austin hippie collective "the Electric Grandmother", an early precursor to the Vulcan Gas Company.