Original 1st printing 16 x 22" concert poster for the J. Geils Band appearing with Focus and Mark Almond at Bowen Field House on the campus of Eastern Michigan University in Ypsilati, MI on 5/9/1973.
Art by (and SIGNED in black pen by) Gary Grimshaw, image is featured in the Art of Rock on page 392 (plate 4.184).
Medium-thick flat vellum stock poster is in absolutely STUNNING mint/near mint to near mint (A/A- to A-) condition; there may be a tiny pinch mark or edge ding hiding somewhere on this one, but to the naked eye it is pretty much as crisp/clean as they come.
A FANTASTIC-looking ARTIST-SIGNED example of this low-run Gary Grimshaw poster from a small Michigan college show.