Untitled no 48,  1965

Private Collection, London

Untitled no 44,  1965

Tate Gallery, London

Fluid Form 1,  1964

Fluid Form 2,  1964

Untitled no 36,  1964

British Council, London

Untitled no 32,  1964

Arts Council of Great Britain

Untitled no 21,  1963

Private Collection, Mexico

A View,  1962

Fitzwilliam Museum, Cambridge

Untitled no 28,  1963