"Composition rouge, blanche et noire"
Lithograph in colours and with pochoir, 1963-64, signed in pencil and numbered 50/120, printed by Erker Press, Saint-Gall, published by Overbeck-Gesellschaft, Lübeck. L. 19,5 x 25,7 cm. S. 31,5 x 37,5 cm.
Heavy time and mat staining, mounted with tape on upper edge of sheet.
Rivière 42.