Artists sessions at Studio 35, April 21-23, 1950. From left to right: Seymour Lipton, Norman Lewis, Jimmy
Ernst, Peter Grippe, Adolph Gottlieb, Hans Hofmann, Alfred H. Barr Jr., Motherwell, Richard Lippold, Willem
de Kooning, Ibram Lassaw, James Brooks, Ad Reinhardt, and Richard Poussette-Dart. Photo by Aaron
Siskind. Courtesy the Ad Reinhardt Foundation.