Forms derived from a cube. 1991. 12 sheets Silkscreen in colors. Online catalogue raisonné Sol LeWitt Prints 1991.15. Each signed and numbered. From an edition of 35 copies. On firm wove paper by Somerset (without watermark). 76.2 x 76.2 cm (30 x 30 in). Sheet: 81,2 x 81,2 cm ( 31,9 x 31,9 in). Printed by Keizo Tasaka, Watanabe Studios, New York. Published by Achenbach Graphics, Düsseldorf 1991. 12 sheets silkscreen in colors, title sheet and imprint in blue-gray cloth portfolio. Front board with blind-tooled title.