A beautiful Mint- condition first printing of BG-80, the poster advertising Cream, Electric Flag, Gary Burton and the Prime Movers at the Fillmore Auditorium in San Francisco. Designed by Jim Blashfield, this is the first printing, designated by Eric King in his guide as BG-80-OP-1. 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. Gleason obtained these posters at the Fillmore after shows, and this one is in near perfect condition, with a very light & small crease in the bottom left corner. 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. 13 31/32" x 21 55/64".