Two decades ago, Martin Lang paid £100,000 for what he thought was a painting by Marc Chagall—a reclining nude, dated 1909-10. Recently, at his son’s behest, Lang submitted the painting to the producers of the BBC art program "Fake or Fortune?" Unfortunately for Lang, "Fake or Fortune"'s analysis came up fake: it showed that the painting's blues and greens used pigments only developed in the 1930s.
Upon this discovery, Lang was issued a writ by the Chagall Committee—based in Paris and headed by Chagall's two granddaughters—which is the only body with the authority to declare the authenticity of a Chagall. Now that Lang's painting has been shown to [...]