Original 1st printing 8&1/2 x 11" concert/event flyer for the Gathering of the Tribes/Human Be-In ("Pow Wow"), held at the Polo Grounds in San Francisco's Golden Gate Park on 1/14/1967.
 
 This version of the flyer lists appearances by counterculture heroes Lenore Kandel, Timothy Leary, Michael McClure, Allen Ginsberg, Gary Snyder, Richard Alpert, Jerry Rubin, Dick Gregory, Lawrence Ferlinghetti, "all SF rock bands" (which included Jefferson Airplane, Quicksilver Messenger Service and the Grateful Dead).
 
 Art by Michael Bowen, image is featured in the Art of Rock on page 197 (plate 2.216).
 
 Thin flat stock flyer is in near mint (A- to A-/B+) condition; other than a few soft handling dings here and there, it is an EXCEPTIONALLY NICE example of this iconic 1967 event flyer from the apex of the Haight-Ashbury psychedelic scene.

Check out 26 minutes of footage from the event HERE:
 
https://www.youtube.com/watch?v=HTGyFgyB5Q8