 He framed the early exhibitions of such Abstract Expressionists as Robert Motherwell, Adolph Gottlieb and William Baziotes.Heydenryk’s influence was not limited to American artists.He framed works by Pablo Picasso for the New York galleries of European art dealers Paul Rosenberg, Klaus Perls and Pierre Matisse as well as Picasso’s American art dealer/agent, Samuel Kootz.