You might like Left Right Screenprint with Balance Berenice Sydney 1974 Etching with Evil Spirits Berenice Sydney 1975 Out There Bernard Cohen 1994–5 Single Horizontal Slot Painting Alan Charlton 1991 2 Part Vertical Painting Alan Charlton 1991 Painting with Four Square Holes Alan Charlton 1991 Pyramid David Nash 1997–8 Sphere David Nash 1997–8 Cube David Nash 1997–8 Sphere David Nash 1997–8 Cube David Nash 1997–8 Column Structure II Robert Mangold 2006