Anthony McCall, "Conical Lines 2.0" 1973/2010, video installation, dimensions variable

Artist unknown "Birdstone" Date of production unknown Slate 4.8 x 10.2 cm Arenberg Collection, Switzerland

Nobuyuki Tanaka "Tactile Memory" 2004/2008 Dry lacquer/lacquer, linen 110 x 86 x 23 cm Photography: Tadasu Yamamoto