Sophie Taeuber-Arp, Composition in Dense, Polychrome, Quadrangular Spots (Composition en taches quadrangulaires, polychromes, denses), 1921, gouache, 10¼ x 13¾ in. (26 x 35 cm). Stiftung Hans Arp und Sophie Taeuber Arp e.V., inv. 003.121 (artwork in the public domain; photograph provided by Stiftung Hans Arp und Sophie Taeuber-Arp)
