An Excellent condition first and only printing of the poster advertising the 1966 A.R.T.S. Benefit Concert, featuring Allen Ginsberg, Sopwith Camel, the San Francisco Mime Troupe and others at the Fillmore Auditorium in San Francisco . This was designed by the legendary Wes Wilson, who literally invented the psychedelic concert poster, and comes the collection of the late Ralph J. Gleason (1917-1975;) one of the most influential jazz and pop music critics of all time. He was a central figure in the San Francisco rock scene, helped organize the Monterey Pop Festival, and co-founded Rolling Stone magazine. Bill Graham himself credited Gleason with suggesting the Fillmore Auditorium to him as a site for concerts, while the Family Dog met with Gleason at his home to discuss their idea to stage dance concerts, prior to their first show at the Longshoreman's Hall. This is a rare opportunity to obtain a poster from the personal collection of one of the key figures of the San Francisco Scene. Gleason would pick up the posters at the shows he was reviewing, and occasionally folded them in half to fit in his famous trench-coat. This is one of those, but it has been stored flat since the show and lays flat–the crease is visible but not a significant distraction; there is also some very minor handling, but overall this looks very nice. On request, we will gladly provide a certificate of authenticity stating that this poster came from the Ralph J. Gleason Collection. 13.938" X 19.938".