13. Frank Stella, from the Series Connes and Pillars, 1987. Foto Usakowska-Wolff

Frank Stella, from the Series Connes and Pillars, 1987. Foto © Urszula Usakowska-Wolff

Frank Stella, from the Series Connes and Pillars, 1987. Foto © Urszula Usakowska-Wolff