An extremely rare poster advertising two November 1967 shows by Texas psychedelic legends the 13th Floor Elevators with Conqueroo and Shiva's Headband, at Austin's Vulcan Gas Company. Featuring psychedelic Winnie the Pooh themed artwork by Gilbert Shelton and Lieuen Adkins, this copy—in excellent condition—is likely the best of the few surviving examples of this highly collectible poster. On thin stock, 22 1/2' x 28 3/4', some light crinkling to the top edge, one 1/4' edge tear top center, a small chip to the top right corner, some light handling and faint foxing to the very top edge and upper left corner—but overall a very striking, unfaded and crisp copy of an extremely rare poster.