A beautiful Near Mint- condition first printing of BG-21, the poster advertising a concert with Love and Everpresent Fullness at the Fillmore Auditorium in San Francisco. Designed by the legendary Wes Wilson, who invented the psychedelic concert poster, this is the absolutely first printing, designated by Eric King in his guide as BG-21-OP-1A. This poster 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 perfectly flat–and the crease isn't apparent from the front. There are extremely tiny pinholes in each corner, but they are almost unnoticeable. On request, we will gladly provide a certificate of authenticity stating that this poster came from the Ralph J. Gleason Collection. 13 29/32" x 20 9/64".