Original 1st printing 8&1/2 x 10&3/4" concert flyer for the Grateful Dead appearing with the New Riders of the Purple Sage at Pauley Pavilion on the campus of the University of California in Los Angeles on 11/20/1971.
Designer unknown (likely Pacific Presentations), thick flat index stock flyer is in absolutely fantastic near mint (A-) condition; aside from a whisper of handling (a stray fingerprint or two) and a tiny edge ding or two, it is a SUPERB-looking example of this low-run/oddball Dead flyer from a late-'71 show at the old U.C.L.A. gymnasium.
Check out a soundboard recording of the show HERE;
https://archive.org/details/gd71-11-20.fm.willy.8806.sbeok.shnf