Gilbert Shelton and Dave Sheridan The Fabulous Furry Freak Brothers #4

Gilbert Shelton and Dave Sheridan The Fabulous Furry Freak Brothers #4 Complete 1-Page Story (Rip Off Press, 1974-75). 
 
Shelton's dope-headed signature characters explore the notion that marijuana causes impotency.  Phineas Phreakears proposes to counteract the tendency with a chemical formula.  Freewheelin' Franklin Freek tries the method, with disastrous results.  Bold counterculture hilarity from a pivotal artist-writer.  Integral drug references, of course, and a prominent element of nudity.  Ink over graphite on Bristol board.  Image area, 12" x 18", framed to 20" x 26.25".  Excellent condition.