ZERO Otto Piene Black Sun. From: Sky Art. 1969. Colour lithograph on wove paper. 84 x 60 cm (89 x 63.5 cm). Signed, dated and numbered. - The corners with small pinholes and minimally bumped, slightly creased upper right. Very good overall. Splendid and rich impression of the image with narrow margins. Rottloff 53/21 - One of only 20 copies. - From the portfolio "Sky Art" with 25 works. - Printed and published by Tamarind Lithography Workshop, Inc., Los Angeles (with the blindstamp). From: Sky Art. 1969. Lithograph on wove paper. Signed, dated and numbered. - The corners with small pinholes and minimally bumped, top right slightly creased. Overall very good. Splendid and rich impression of the image with narrow margins. - One of only 20 copies. - From the portfolio 'Sky Art' containing 25 works. - Printed and published by. Tamarind Lithography Workshop, Inc, Los Angeles (with blindstamp). This work is taxed. The hammer price is subject to a 24.95% buyer's premium and the final invoice amount is subject to 7% (books, prints except serigraphs) or 19% VAT (only for serigraphs and photographs) in the European Union. This work is subject to the regular margin scheme. There is a 24.95% buyer's premium on the hammer price and 7% (Books, Prints except Screenprints) or 19% VAT (Screenprints or Photographs) on the final invoice amount in the European Union. 1000