Wooden panel with relief elements in black, white and grey,

1970

37.5 x 37.5 x 2.5 cm (14 3/4 x 14 3/4 x 0 7/8 in.)

signed in black ink and numbered 2/55 (printed) on a label affixed to the reverse, published by Éditions du Griffon, Neuchâtel, Switzerland, contained in the original cardboard box with stamped title.