Irvin Levy, the industrial chemicals executive from Dallas, was an avid art collector. Sotheby’s is selling 11 works from his collection with an estimate of $22m. Levy was a long-standing board member at the Dallas Art Museum. The works on offer neatly divide between Modern artists—Pierre Bonnard, Gustave Caillebotte and Paul Gauguin—that he collected with his first wife, and Contemporary artists—Gerhard Richter and Joan Mitchell—bought with his second wife.

Sotheby’s has prepared a video about Levy and his pictures narrated by Simon Shaw where Shaw calls Levy, “the nicest man in Dallas.”