Original 1st printing 19&5/8 x 27&3/4" concert poster for the Grateful Dead's legendary Bill Graham-produced acoustic/electric shows at the Warfield Theatre in San Francisco from 9/25-10/14/1980.

 Art by Dennis Larkins (with Peter Barsotti), image is featured in the Art of Rock book on page 345 (plate 4.45).

 Thick glossy-coated index stock poster is in decent (B/B-) condition; this example displays a fairly moderate amount of creasing throughout the poster, both within the image area and around the outer margins, along with a semi-pronounced curl to the paper and a bit of toning on the reverse, otherwise OK.. no holes/tears/stains, pretty much just a bunch of creases/bends. 

 While this example definitely won't win any beauty contests, it is still all there and is priced to move. Check out a great-sounding soundboard (a Charlie Miller transfer) of the 9/26 show HERE:

https://archive.org/details/gd1980-09-26.sbd.miller.118444.flac16