Original 1st printing 17 x 22" concert poster for Chicago appearing with the J. Geils Blues Band at the Boston Tea Party (53 Berkeley Street location) in Boston, MA from 3/6-8/1969.

 Artist unknown/not credited (likely Bob Driscoll) medium-thick glossy stock poster is in excellent (B+) condition; there is a tiny edge nip tear in the lower left margin, along with a couple of tiny pin-prick spots in the upper right corner tip and just to the left of "Chicago", a few stray soft handling/edge dings here and there, a tiny crease/spot at about 1:00 on the sun and a nearly-invisible ultra-soft horizontal roll bend/wave traversing the upper margin area, otherwise it is a VERY sharp example of this somewhat uncommon early-'69 Boston Tea Party poster.