Andy Warhol, Marilyn Diptych, 1962, Acrylic paint on canvas, Tate, London. https://dartabase.art/cite/tate/T03093

Sigmar Polke, "Young Man Come Back Soon!" ("Junge komm bald wieder!"), 1963, Ballpoint pen and watercolor on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33455

Sigmar Polke, [Untitled], 1966, Ballpoint pen and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34147

Andy Warhol, Self-Portrait, 1986, Acrylic paint and screenprint on canvas, Tate, London. https://dartabase.art/cite/tate/T07146

Andy Warhol, Untitled (City Text), (c. 1962), Pencil and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33425

Sigmar Polke, [Untitled], 1983, Gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35327

Sigmar Polke, Untitled (Dancer), 1994, Gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35516

Sigmar Polke, [Untitled], (1963), Ballpoint pen, oil, and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33461

Andy Warhol, Brooke Hayward, 1973, Acrylic paint and silkscreen on 4 canvases, Tate, London. https://dartabase.art/cite/tate/T12600

Sigmar Polke, o.T. COLOR TEST, BLUE (o.T. FARBPROBE, BLAU), 1984, Synthetic polymer paint on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33178

Sigmar Polke, [Untitled], (1968), Watercolor, acrylic spray, gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36313

Sigmar Polke, Untitled ("Witz"), 1965, Felt-tip pen and watercolor on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33861

Andy Warhol, Untitled (Beauty Products), 1960, Gouache and graphite on paper, Tate, London. https://dartabase.art/cite/tate/T05495

Eduardo Paolozzi, Futurism at Lenabo, 1964, Cut-and-pasted printed paper and gouache on cut-and-pasted gelatin silver print, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/38801

Eduardo Paolozzi, Study for Sculpture, 1950, Watercolor on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35107

Sigmar Polke, [Untitled], c. 1964, Synthetic polymer paint on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35607

Sigmar Polke, [Untitled], 1964, Ballpoint pen and gouache on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33468

Andy Warhol, Self-Portrait, 1967, Synthetic polymer paint and silkscreen on canvas, Tate, London. https://dartabase.art/cite/tate/T01288

Andy Warhol, Electric Chair, 1964, Screenprint and acrylic paint on canvas, Tate, London. https://dartabase.art/cite/tate/T07145

Sigmar Polke, [Untitled], 1983, Synthetic polymer paint on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36633