Original 1st printing 21&3/4 x 16&3/4" concert/performance poster for Proctor & Bergman + 3 (Firesign Theatre) appearing at Pease Auditorium on the campus of Eastern Michigan University in Ypsilanti, MI on 12/1/1973.

 Art by Gary Grimshaw, medium-thick flat index stock poster is in excellent (B+) condition; there are tack holes in the lower left/right center margins, along with a touch of handling wear, light creasing along the bottom margin and a couple of soft stains/light tape pulls on the reverse, otherwise it is a fairly sharp example of this oddball early-'70's Gary Grimshaw poster with a very trippy image.