Original 1st printing 10 x 16" concert/event poster for "Free (Food + Music)", a series of outdoor events held in Boston, MA through the month of May, 1970. (*event was held on Fenway across from the Museum of Fine Arts).
Art by Alton Kelley, medium-thick flat index stock poster is in very good (B/B+) condition; aside from the off-register printing, there is an approximately 4" thin diagonal hairline bend going from the right/center of the image area down through the "M" of "May" in the right border, a thin pinch crease in the upper left margin, a couple areas of light ink spread within the image area, a couple of tiny corner-tip bumps, a thin bend going through the "ee" of "Free" and a tiny stress bend or two hiding within the image area, otherwise fine.
VERY, VERY hard-to-find Kelley variant poster from Boston, only a few were printed with this color combination (most were printed with blue ink instead of black).