Vacuum-formed plastic object in white, with accompanying book,

1968

29.9 x 29.5 x 2.3 cm (11 3/4 x 11 5/8 x 0 7/8 in)

the edition size unknown, published by Editions Gustavo Gili in cooperation with the Galeria René Métras, Barcelona, unobtrusive discolouration at top edge, otherwise in very good condition, contained in original cardboard slipcase (with minor signs of wear).