Original 1st printing 11&1/2 x 17&1/2" concert poster for the Grateful Dead appearing at Manor Downs Racetrack in Austin, TX on 10/12/1977.
Art by Micael Priest (borrowed from Mouse/Kelley), medium-thick glossy coated index stock poster is in near mint to excellent (A-/B+ to B+) condition; just a few stray pin-prick surface spots, a soft 1" bend in the bottom right corner and a touch of moisture wear, otherwise it is a FANTASTIC-looking example of this late-'70's Dead concert poster from Texas.
Check out a great-sounding recording of the show HERE:
http://archive.org/details/gd1977-10-12.sbd.goodbear.3919.sbefail.shnf