Original 1st printing 16&5/8 x 21&7/8" concert poster for the Grateful Dead appearing with the New Riders of the Purple Sage at Hill Auditorium on the campus of the University of Michigan in Ann Arbor, MI on 12/15/1971.

 Art by Gary Grimshaw, image is featured in the Art of Rock book on page 393 (plate 4.187). *this version does not have the local ticket-outlet imprint

 Medium-thick vellum stock poster is in very good (B/B+) condition; there is a moderate amount of curling to the poster from being rolled, along with a thin diagonal bend traversing the band photo in the top left corner, a small 1/4" tear in the upper left margin, a few stray soft edge dings and tiny creases scattered along the left/right margins, a small wedge pull/scrape in the bottom center margin and a loose handling/stress bend or two lurking within the image area, otherwise fine.

Great-looking example of this classic Grimshaw Grateful Dead image from the early '70's, check out a very crisp-sounding recording of the show HERE:

https://archive.org/details/gd1971-12-15.sbd.miller.97718.sbeok.flac16