Multiple, comprising two panels, the first with nails, graphite and canvas stretched on woodboard, the second, a metal block with drilled holes,

1975

22.5 x 22.5 x 7 cm (8 7/8 x 8 7/8 x 2 3/4 in.)

signed and numbered 29/35 in pencil on the reverse of the woodboard of the first panel, both contained in the original cardboard box, with printed label showing installation diagram of the work, further signed and numbered in pencil on a label affixed to the lid of the box.