A virtually mint first printing of BG-04, the Fillmore poster advertising a show featuring the Jefferson Airplane, Quicksilver Messenger Service and Lightnin' Hopkins at the Fillmore Auditorium in April 1966. This Wes Wilson classic is in extraordinary and fresh condition, never having been hung or otherwise exposed to light. There is a tiny ding in the lower left corner, but otherwise this is mint and looks brand new. 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. On request, we will gladly provide a certificate of authenticity stating that this poster came from the Ralph J. Gleason Collection.