Original 1st printing 20 x 26" concert poster for the Grateful Dead appearing at the Zoo Amphitheatre in Oklahoma City, OK on 8/1/1982 (*Jerry Garcia's 40th birthday).
Design by Innervisions, medium-thick clay-coated/semi-gloss stock poster is in decent/used (B/B- to B-) condition; there is a moderate to heavy amount of edge wear (numerous creases/bends, small tears (sealed on the reverse with tape), slightly peeled corner tips), a thin surface scrape going across "Grateful", a series of tiny stress creases/loose handling dings/bends scattered throughout the image/margin area, a few tiny pin-prick surface stains/scuffs, etc.. definitely on the used side, but it's all there.
Condition issues aside, this is a fairly hard-to-find early-'80's Dead poster. It has since been reprinted, but the original is a bit of a tough score.
Check out a fine-sounding recording (soundboard/audience matrix) of the show HERE;
https://archive.org/details/gd1982-08-01.124193.mtx.dusborne.flac16/gd82-08-01s1t02.flac