Original 1st printing 11 x 17&1/2" concert poster for Spirit appearing with the Elvin Bishop Group and Sha-Na-Na at the Boston Tea Party (15 Lansdowne Street location) in Boston, MA from 10/9-11/1969.

 Art by Eric Engstrom, medium-thick flat index stock poster is in excellent (B+) condition; there are a couple of hairline-thin horizontal creases along the extreme top margin, a tiny corner-tip bend or two, a stray stress bend/pinch ding or two hiding within the image area and a couple of soft bends along the bottom margin, otherwise fine.

 Absolutely GORGEOUS late-1969 Tea Party poster with a great pop-art design.