Group of Six “Pirate” Edition Psychedelic Rock Posters. San Francisco Poster Co., 1960s/70s. Including “13th Floor Elevators/Zebra Man” (Stanley Mouse); “Keep California Green” (Stanley Mouse); “Cosmic Car Show” (Stanley Mouse); “Euphoria” (Wes Wilson); “Invisible Circus” (Dave Hodges); and “Psychedelic Art/First West Coast Show” (Tom Weller/Paul Kagan). The largest 22 x 15 ½”, others slightly smaller. Very good.