Six federal court cases against the once-venerable gallery are still open and the forgeries have entangled many in the art industry: the Kemper Museum of Contemporary Art in Kansas City, Missouri and Basel’s Beyeler Foundation have both displayed fakes that passed through Knoedler; Christie’s sold Lane’s fake Rothko for $2.2m and later refunded the money; and the art historian Oliver Wick is a defendant in one of the active suits