Heinz Mack Stele with 7 Lenses, 1963-2015 Fresnel lenses, acrylic glass, and stainless steel - unique 300 x 45 x 5 cm - 118 x 17 1/2 x 2 in Plinth: 4 x 60 x 39 cm - 1 1/2 x 23 1/2 x 15 1/2 in
