Rare bold vintage felt tip signatures of all seven original Chicago members—Terry Kath, Danny Seraphine, Peter Cetera, Walt Parazaider, Robert Lamm, James Pankow, and Lee Loughnane—on two irregularly trimmed sheets with a light blue woodgrain pattern. Matted to an overall size of 10.25 x 13.75. In very good condition, with staining to the edges.
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