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

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

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

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

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

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

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

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

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