Erik Ortvad, [Untitled], 1945, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33610

Peter Paul Rubens, The Garden of Love (left portion), c. 1633–35, Pen, brown ink, brush and gray-green wash over traces of black chalk, touched with indigo, green, yellowish, and white paint, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334653

Adolph von Menzel, Head of a Bearded Man, 1884, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334928

Carl-Henning Pedersen, World Bird Over Landscape, 1944, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33673

Richard Mortensen, [Untitled], c. 1940–45, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33570

Richard Mortensen, [Untitled], c. 1940–45, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33579

Erik Ortvad, [Untitled], 1944, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33602

Erik Ortvad, [Untitled], 1946, Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33593

Adolph von Menzel, Doctor and Patient, 1899, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334927

Carl-Henning Pedersen, The Birds of Earth, 1945, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33688

Erik Ortvad, [Untitled], 1944, Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33590

Carl-Henning Pedersen, The Birds of Fantasy, 1944, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33680

Richard Mortensen, [Untitled], 1940, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33575

Adolph von Menzel, Woman with a Crushed Velvet Hat, 1894, Graphite, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334929

Richard Mortensen, [Untitled], c. 1940–45, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33565

Carl-Henning Pedersen, Baroque Bird at Sea, 1944, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33665

Carl-Henning Pedersen, The Sacrifice to the Sun, 1943, Crayon and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33649

Carl-Henning Pedersen, Ship with Tent, 1951, Pencil and ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37580

Peter Paul Rubens, Susanna, 1577, Pen and brown ink, brush and brown wash, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334709

Carl-Henning Pedersen, Pastorale with Big Bird, 1943, Crayon and pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33658

Erik Ortvad, [Untitled], 1944, Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33597