ZERO Otto Piene o.T. (Composition in blue, orange and yellow). 1977. colour silkscreen on light wove cardboard. 29.5 x 21 cm. Signed, dated and numbered. - Upper right corner with small and barely noticeable pinhole. Very good overall. Magnificent, extremely colourful and velvety impression of the image in full format. No longer with Rottloff. - One of 200 copies. Serigraph in colour on light wove card. Signed, dated and numbered. - Upper right corner with small and barely noticeable pinhole. Very good overall. Splendid, exceptionally colour-rich and velvety impression of the full-format depiction. - One of 200 copies. 500