Complex Forms. 1988/89. Portfolio with 5 color Etching and aquatints, published by Tomoko Liguori Editions, New York 1988/89. Online catalogue raisonné Sol LeWitt Prints 1989.09. Each signed and numbered. From an edition of 39 copies. On wove paper by Arches (with watermark). Each 50 x 34,5 cm (19,6 x 13,5 in). Sheet each: 76,3 x 57 cm (30 x 22,3 in). Printed by Watanabe Studio, New York. In black original artificial leather portfolio. The complete set. [JS].