signed and dated 1969 verso- white perspex and stainless steel ø 122.5 x6 cm
signed and dated 1969-white perspex and stainless steel ø 61×12 cm
signed and dated 1969 crystal clear perspex and stainless steel 56x56x2 cm Sold
signed and dated 1973 -crystal clear perspex 196x28x2 cm Literature; H. Stachelhaus,Carel Balth, The Art of Seeing, Vreeland 1974, ill.p.31 Sold
signed and dated 1969 crystal clear perspex and stainless steel 70x70x4 cm € 25.000