Original 1st printing 8&1/2 x 11" concert/event flyer for the 1/14/1967 Gathering of the Tribes/Human Be-In, held at the Polo Grounds in San Francisco's Golden Gate Park. This version lists appearances by counterculture heroes Lenore Kandel, Timothy Leary, Michael McClure, Allen Ginsberg, Gary Snyder, Richard Alpert, Jerry Rubin, Dick Gregory, Lawrence Ferlinghetti and "all SF rock bands" (which included Jefferson Airplane, Quicksilver Messenger Service, the Charlatans, the Grateful Dead and more).
Art by Rick Griffin, image is featured in the Art of Rock on page 197 (plate 2.216).
Thin flat textured stock flyer is in decent/used (B/B- to B-) condition; a moderate amount of toning, a set of tack holes (all four corners and top center margin- this one has a small drag tear), plus a small wedge of missing paper out of the bottom right corner tip, a decent-sized brown tape stain in the bottom margin, a few handling creases and a series of thin bends in the lower right margin, otherwise fine.
A very charming (if a bit used) example of this classic Rick Griffin flyer from one of the largest events in counterculture history.