4-1/2 x 6-3/8 inches
Airmail envelope with page of chemistry textbook (WAC is missing the chemistry textbook page illustrated as part of the work; see 1992 Schellmann catalogue #33). Produced during Beuys' 50th birthday action in the Staatliche Kunstakademie, Düsseldorf.
airmail envelope, ink stamp
Alfred and Marie Greisinger Collection, Walker Art Center, T. B. Walker Acquisition Fund, 1992
In ink reverse UM "Joseph Beuys"; "24/50"; stamped in ink front with "Hauptstrom" stamp and two other stamps; stamped in ink reverse with publisher stamp "edition tangente"
Copyright Estate of Joseph Beuys / Artists Rights Society (ARS), New York