Original 1st printing 17 x 22" event poster, "Can You Pass the Acid Test?", Ken Kesey and the Merry Pranksters' legendary series of LSD-fueled multi-media happenings/parties held up and down the West Coast from November 1965 through October 1966. "Happeners" (participants/acts) listed on the poster include: the Fugs, Allen Ginsberg, the aforementioned Merry Pranksters, Neal Cassady, the Grateful Dead and "Roy's Audioptics" (Prankster Roy Seburn's light show).
Art by Paul Foster (sometimes mis-credited to Norman Hartweg), image (hand-colored by Sunshine Kesey) is featured in the Art of Rock book on page 91 (plate 2.4)- this is the large-version goldenrod/yellow-orange blank (no info/unused) poster.
Medium-thin flat index stock poster is in ABSOLUTELY STUNNING near mint (A-) condition; there are no more than a couple of tiny edge/corner bumps, a whisper of handling, a nearly-invisible soft diagonal bend in the upper right margin and maybe a hairline stress bend or two hiding within the image area, but this example is without a doubt at the VERY top of the conditional scale.
There is not much I can add to the importance of this piece as far as historical significance (WAY too much to go into here), but I can add that the provenance on this piece is absolutely WITHOUT QUESTION- 100% ROCK SOLID. I will gladly provide a COA detailing the lineage of this piece to the winning bidder (upon request).
An ABSOLUTE MONSTER of a psychedelic poster, this is where it ALL STARTED!
*this piece is offered with a confidential reserve.