This silkscreened Acid Test design from the original 1966 poster reads "Can You Pass The Acid Test? The happeners are likely to include: The Fugs, Allen Ginsberg, The Merry Pranksters, Neal Cassady, The Grateful Dead, Roy's AudiOptics, Movies.  This Saturday Night.  Bring your own comfort. Here's where it's at:, IntrepidTrips inc. production." Many other graphics, statements and basic wierdness also appear on this historic design.

Less than 100 of these were printed and even fewer signed!

*** Numbered (#41) and SIGNED BY KEN KESEY and his MERRY BAND OF PRANKSTERS***

$745 (SALE TODAY $495)

Signed by KEN KESEY and the Merry Pranksters: This one is numbered #41
signed by:

Ken (Swashbuckler) Kesey

Ken (Intrepid Traveler) Babbs

Gretchen (Slime Queen) Fetchin

Mike (Mal Function) Hagen

John (Sometimes Missing) Babbs

Linda (Anonymous) Breen

Simon (Lightnin') Babbs

Zane (Chicken Leopard) Kesey

*** Numbered (#76) andSIGNED BY KEN KESEY and his MERRY BAND OF PRANKSTERS***

$745 (SALE TODAY $495)

Signed by KEN KESEY and the Merry Pranksters: Numbered #76

Ken (Swashbuckler) Kesey

Ken (Intrepid Traveler) Babbs

Gretchen (Slime Queen) Fetchin

Mike (Mal Function) Hagen

John (Sometimes Missing) Babbs

Linda (Anonymous) Breen

Simon (Lightnin') Babbs

Zane (Chicken Leopard) Kesey