15.5 x 19.5 in. (39.4 x 49.5 cm.) Serge Poliakoff, a Russian, French oil on board Abstract painting Circa 1940s to 1960s. The painting depicts an abstract geometric composition in black, blue, red, ...

Abstract artist Piet Mondrian’s masterpiece, Composition No. II, is expected to achieve more than US$50 million at a Sotheby’s auction in November. The square painting, created in 1930, features the ...