Joong Seop Lee, People Reading the Newspaper (Number 84), 1950–52, Incising and oil on metal foil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33369

Joong Seop Lee, Fairyland (Number 57), 1950–52, Incising and oil on metal foil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33357

Joong Seop Lee, Family in Paradise (Number 50), 1950–52, Incising and oil on metal foil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33348

Ung-no Lee, Sailing, 1957, Ink and colored ink on paper on scroll, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33864

Ung-no Lee, Composition, (1959), Colored ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34154