Camille Graeser "ROT-GRÜN-VOLUMEN 1:1, 1/8 BEWEGT" Signed with green felt-tip pen on the reverse: graeser 1974 Acrylic on canvas 120 x 120 cm Private collection, Rhineland Camille Graeser. Zurich, Kunsthaus Zurich, 1975, cat. no. 2 / Camille Graeser. Zurich, Kunsthaus Zurich and Ludwigshafen, Wilhelm-Hack-Museum, 1979 / Camille Graeser. Bottrop, Quadrat Bottrop, Moderne Galerie, 1981, cat. no. 64 / XLII. Biennale di Venezia Koella B 1974.15 On the stretcher labels of the exhibitions Zurich 1975 and 1979 as well as Bottrop 1981 (see below) 120 x 120 cm