Original 1st printing 12&3/8 x 12&3/8" concert poster ("Serendipity") for the Carnegie Mellon University 1969 Spring Festival featuring Iron Butterfly and Deep Purple, held on the campus of CMU in Pittsburgh, PA from 5/1-3/1969.

 Designer unknown/not credited (image based on Richard Avedon's 1968 portrait of George Harrison), medium-thin glossy coated index stock poster is in excellent (B+) condition; aside from a pair of tack holes in the top/bottom center margins, a few tiny pin-prick surface dings/scratches and a soft bend in the upper right margin/corner, it is a fairly clean example of this VERY obscure early-1969 college concert/event poster from western Pennsylvania.

 First one of these I have EVER seen!