Original color 16.75 x 22.75 poster for Grand Funk Railroad, Litter, Brian Auger & the Trinity, and Four Days and a Night at The Aragon Ballroom in Chicago on July 10, 1970, featuring artwork by Al Shamie depicting a cross-section of a human head. In very good to fine condition, with some light stains, and a short tear and creasing to the top edge.
