René Magritte, Perspective, (1963), Crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36809

Victor Servranckx, Composition, c. 1927, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37699

René Magritte, The Thought Which Sees, 1965, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35714

Roél d'Haese, [Untitled], 1959, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33976

Marcel Broodthaers, "M.B. M.B. M.B....", 1970, Ink on paper in artist's frames, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/37802

Anonymous Artist, Judith with the Head of Holofernes, c. 1480, pen and dark brown ink with black chalk and white heightening on olive-brown prepared paper laid down on canvas, National Gallery of Art, Washington. https://dartabase.art/cite/nga/319

Théo van Rysselberghe, Self-Portrait, (1888–89), Pastel and crayon on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/35486

Arent van Bolten, A Fantastic Creature, late 16th–early 17th century, Pen and brown ink, brush and brown wash, over black chalk; framing lines in pen and brown ink, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334690

George Minne, Kneeling Youth, 1896, dated 1905, Pencil on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/36048

Anonymous Artist, Christ before Pilate, 1606, brush and brown ink on brown paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1841

Roél d'Haese, [Untitled], 1959, Ink on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/33963

Georges Lemmen, Farmhouse in Flanders, 1890, Charcoal on paper, The Museum of Modern Art, New York. https://dartabase.art/cite/moma/34891

Anonymous Artist, An Oriental, 1606, pen and brown ink with brush and brown-black ink on laid paper, National Gallery of Art, Washington. https://dartabase.art/cite/nga/1851

Pieter de Jode I, Neptune in his Chariot, late 16th–mid 17th century, Pen and brown ink, brown wash, over traces of black chalk, The Metropolitan Museum of Art, New York. https://dartabase.art/cite/met/334883