An artistic response to industrial pollution in Bitterfeld, Germany., Autographs of [Oskar] Manigk, W[olfgang] Petrovsky, Klaus Staeck, Rolf Staeck, Hans Schimansky, Tina Bara, Ralf Herzig, Peter Oehlmann, [Ulrich] Wüst, Robert Rehfeldt, Manfred Butzmann, and V[olker] H[enze]. Stamps of [Bertram] Kober and Peter Thieme., and Consists of case containing [19] sheets, most 44 x 35 cm., and two stapled plastic sheets enclosing paper sheet with caption "Analyse fl̈uchtiger organischer Stoffe im Wasser der Mulde" and a soiled paper object. Includes prints and photographs signed by [Oskar] Manigk, W[olfgang] Petrovsky, Klaus Staeck, Rolf Staeck, Hans Schimansky, Tina Bara, Ralf Herzig, Peter Oehlmann, [Ulrich] Wüst, Robert Rehfeldt, Manfred Butzmann, V[olker] H[enze] or stamped by [Bertram] Kober or Peter Thieme.