Original 1st printing 19 x 28&1/2" concert poster for the Grateful Dead with special guests the New Riders of the Purple Sage and the Blues Brothers appearing at Winterland in San Francisco, CA on 12/31/1978 (this was the FINAL Winterland show). Art by Alton Kelley (who also SIGNED the poster in gold ink - see close-up) and Stanley Mouse, image is featured in the Art of Rock book on page 343 (plate 4.38). Medium-thick glossy-coated index stock poster is in fantastic near mint (A- to A-/B+) condition; there's a couple of well-camouflaged tiny pinch dings and maybe a stray surface scratch or two, but otherwise this one is pretty much as crisp/sharp as they come. An overall FANTASTIC-looking SIGNED example of one of the most famous and oft-requested Dead images of all time. Thanks to the kind folks over at the Archive, you can stream the show HERE: