Works in Private Collections
Vertical
 
Vertical Construction 1961-62
In the collection of
The Late John Hoskin

Jerry Andrus

The late Joost Baljeu

Christopher Frith

Martin Gardner

Christopher Gange

Alistair Grieve

Richard Gregory

The late John Hoskin

Herb Kohl

Lucy Milton

Erno Rubik

Itsu Sakane

Nicholas Wade

Jearl Walker

Steve Wosniak