Original 1st printing 22&1/2 x 16&5/8" concert poster for the Grateful Dead appearing with New Riders of the Purple Sage at the Sacramento (CA) Memorial Auditorium on 12/22/1970.

 Art by (and SIGNED in pencil by) Roger Shepherd, image is featured in the Art of Rock book on page 366 (plate 4.101)

 Medium index stock poster is in near mint (A-) condition; aside from a couple of tiny corner creases and a whisper of handling wear, it is an absolutely GORGEOUS ARTIST-SIGNED example of this beautifully-designed late-1970 Grateful Dead concert artifact from Northern California.