Relief. Plastic matter, color foil and green acrylic paint on a photo reproduction of a postcard, printed in silkscreen on verso Dobke 103. Signed, dated nd numbered 43/50 on verso. On smooth paper, laid on cardboard. 64 x 95 cm (25,1 x 37,4 in), the full sheet Made by Rudolf Rieser, Cologne, Dieter Roth and Bernd Minnich, Düsseldorf. Released by Taucher Verlag, Cologne 1969. [DB].